1952 in paleobotany

Overview of the events of 1952 in paleobotany

List of years in paleobotany

* … 1942
* 1943
* 1944
* 1945
* 1946
* 1947
* 1948

* 1949
* 1950
* 1951
* 1952
* 1953
* 1954
* 1955

* 1956
* 1957
* 1958
* 1959
* 1960
* 1961
* 1962 …

In paleontology
1949
1950
1951
1952
1953
1954
1955

In science
1949
1950
1951
1952
1953
1954
1955

* Art
* Archaeology
* Architecture
*   * Literature
* Music
* Philosophy
* Science+...

* v
* t
* e

This paleobotany list records new fossil plant taxa that were to be described during the year 1952, as well as notes other significant paleobotany discoveries and events which occurred during 1952.

## Mosses

[edit]

Name  | Novelty  | Status  | Authors  | Age  | Unit  | Location  | Synonymized taxa  | Notes  | Images

|
|
|
|
|
|
|
|
|

Archaeomnium arnoldianum[1]

Comb nov

jr synonym

(Steere) LaMotte

Miocene

"Carter Creek"

United States
Oregon

|  |

A moss.
Moved from Palaeohypnum arnoldianum (1947)
Moved to Hypnites arnoldianum in 1980[2]

Archaeomnium brittoniae[1]

Comb nov

jr synonym

(Steere) LaMotte

Miocene

Latah Formation

United States
Washington

|  |

A moss.
Moved from Palaeohypnum brittoniae (1947)
Moved to Hypnites brittoniae in 1980[2]

Archaeomnium brownii[1]

Comb nov

jr synonym

(Kirchner) LaMotte

Eocene
Priabonian

Florissant Formation

United States
Colorado

|  |

A moss.
Moved from Palaeohypnum brownii (1947)
First named Hypnum brownii (1898)
Moved to Hypnites brownii in 1980[2]

Archaeomnium knowltoni[1]

Comb nov

jr synonym

(E. G. Britton) LaMotte

Eocene

Roslyn Formation

United States
Washington

|  |

A moss.
Moved from Palaeohypnum knowltoni (1947)
First named Rhynchostegium knowltoni (1899)
Moved to Hypnites knowltoni in 1980[2]

## Ferns

[edit]

Name  | Novelty  | Status  | Authors  | Age  | Unit  | Location  | Synonymized taxa  | Notes  | Images

|
|
|
|
|
|
|
|
|

Athyrium crossii[1]

Comb nov

|  |

(Knowlton) LaMotte

Paleocene

Denver Formation

United States
Colorado

Diplaiium mulleri (1874)

A lady fern species.
Moved from Diplazium crossii (1930)
First named Asplenium (Diplaiium) crossii (1890)

Cyathea branneri[1]

Comb nov

|  |

(Hollick & Berry) LaMotte

"Tertiary"

|  |

Brazil

|  |

A tree fern species.
Moved from Hemitelia branneri (1924)

Cyathea pinnata[1]

Comb nov

jr synonym

(MacGinitie) LaMotte

Eocene

Ione Formation

United States
California

|  |

A tree fern species.
Moved from Hemitelia pinnata (1941)
Synonymized into Cyathea inequilateralis in 1977[3]

|  Cyathea inequilateralis

Dryopteris claiborniana[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Yegua Formation

United States
Louisiana

|  |

A wood fern species
Moved from Goniopteris claiborniana (1917)

Dryopteris escheri[1]

Comb nov

|  |

(Heer) LaMotte

Miocene

|  |

Switzerland

|  |

A wood fern species
Moved from Aspidium escheri (1855)

Dryopteris guyottii[1]

Comb nov

|  |

(Lesquereux) LaMotte

Eocene
Priabonian

Florissant Formation

United States
Colorado

|  |

A wood fern species
Moved from Phegopteris guyottii (1908)
First named Sphenopteris guyottii (1883)

Dryopteris heerii[1]

Comb nov

|  |

(Ettingshausen) LaMotte

|  |  |  |  |

A wood fern species
Moved from Aspidium heerii (1865)

Dryopteris lesquereuxi[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Lysite Formation

United States
Wyoming

synonymy

* Lastrea (Goniopteris) fischeri (1883) pro part
* Lastrea (Goniopteris) knightiana (1883) nomen nudum

A wood fern species
Moved from Goniopteris lesquereuxi (1932)

Dryopteris ursinum[1]

Comb nov

|  |

(Unger) LaMotte

Miocene

|  |

Switzerland

|  |

A wood fern species
Moved from Lastrea (Phegopteris) stiriaca (1855)

Dryopteris ursinum[1]

Comb nov

|  |

(Heer) LaMotte

Paleocene

|  |

Greenland

|  |

A wood fern species
Moved from Aspidium ursinum (1869)

## Cycadophytes

[edit]

Name  | Novelty  | Status  | Authors  | Age  | Unit  | Location  | Synonymized taxa  | Notes  | Images

|
|
|
|
|
|
|
|
|

Ctenis hamiltonensis[1]

Comb nov

|  |

(Hollick) LaMotte

Paleocene/Eocene

"Hamilton Bay flora"

USA
Alaska

|  |

A Ctenis species.
Moved from Anthrophyopsis hamiltonensis (1936)[4]

Zamites pollardi[1]

Comb nov

|  |

(Hollick) LaMotte

Paleocene

Fort Union Formation

USA
Wyoming

|  |

A Zamites species morphospecies.
Moved from Magnolia (?) pollardi (1899)

## Conifers

[edit]

### Cupressaceae

[edit]

Name  | Novelty  | Status  | Authors  | Age  | Unit  | Location  | Synonymized taxa  | Notes  | Images

|
|
|
|
|
|
|
|
|

Callitris helvetica[1]

Comb nov

|  |

(Heer) LaMotte

Miocene

|  |

Switzerland

|  |

A Callitris species.
Moved from Widdringtonia helvetica (1855)

Juniperus linguaefolia[1]

Comb nov

|  |

(Lesquereux) LaMotte

Eocene
Priabonian

Florissant Formation

USA
Colorado

|  |

A juniper species.
Moved from Sabina linguaefolia (1908)
First described as Widdringtonia linguaefolia (1883)

Thuja naujatica[1]

Comb et sp nom nov

|  |

(Heer) LaMotte

Paleocene

|  |

Denmark
Greenland

|  |

A hiba species.
New species name for Thujopsis gracilis (1920)
First described as Thuja (Thujopsis) gracilis (Heer) (1883)

## Flowering plants

[edit]

### Nymphales

[edit]

Name  | Novelty  | Status  | Authors  | Age  | Unit  | Location  | Synonymized taxa  | Notes  | Images

|
|
|
|
|
|
|
|
|

Nymphaea leei[1]

Comb nov

|  |

(Knowlton) LaMotte

Paleocene

Raton Formation

USA
Colorado

|  |

A waterlily species
First described as Castalia leei (1917)

Nymphaea pulchella[1]

Comb nov

|  |

(Knowlton) LaMotte

Paleocene

Dawson Arkose

USA
Colorado

|  |

A waterlily species
First described as Castalia pulchella (1930)

### Magnoliids

[edit]

Name  | Novelty  | Status  | Authors  | Age  | Unit  | Location  | Synonymized taxa  | Notes  | Images

|
|
|
|
|
|
|
|
|

Beilschmiedia portoricensis[1]

Comb nov

|  |

(Hollick) LaMotte

Miocene

Collazo Shale

USA
Puerto Rico

|  |

A Beilschmiedia species.
Moved from Hufetandta portoricensis (1928)
First named Aniba portoricensis (1928)

Laurophyllum grandis[1]

Comb nov

|  |

(Lesquereux) LaMotte

Miocene

Neroly Formation

USA
California

synonymy

* Laurus fremontensis (1930)
* Laurophyllum fremontensis (1941)

A lauraceous species.
Moved from Laurus grandis (1883)

Lindera antiqua[1]

Comb nov

|  |

(Heer) LaMotte

Miocene

|  |

Switzerland

|  |

A spicewood species
First described as Benzoin antiquum (1856)

Lindera dilleri[1]

Comb nov

|  |

(Knowlton) LaMotte

Miocene

|  |

USA
Oregon

|  |

A spicewood species
First described as Benzoin dilleri (1900)

Litsea lamarensis[1]

Comb nov

|  |

(Knowlton) LaMotte

Eocene

|  |

USA
Wyoming

|  |

A Litsea species
First described as Malapoenna lamarensis (1899)

Litsea lata[1]

Comb nov

jr synonym

(MacGinitie) LaMotte

Eocene

Ione Formation

USA
California

|  |

A lauraceous relative
First described as Neolitsea lata (1941)
Moved to Cinnamomophyllum latum in 1977[3]

|  Cinnamomophyllum latum

Litsea praecursoria[1]

Comb nov

|  |

(Lesquereux) LaMotte

Paleocene

Fort Union Formation

USA
North Dakota

|  |

A lauraceous relative
First described as Tetranthera praecursoria (1883)

Litsea sagittata[1]

Comb nov

|  |

(Ball) LaMotte

Eocene

Wilcox Formation

USA
Texas

|  |

A Litsea species
First described as Malapoenna sagittata (1939)

Litsea sessiliflora[1]

Comb nov

|  |

(Lesquereux) LaMotte

Eocene

Wilcox Formation

USA
Texas

* Tetranthera sessiliflora (1878)

A Litsea species
Moved from Malapoenna sessiliflora (1898)
First described as Laurus sessiliflora (1874)

Litsea texensis[1]

Comb nov

|  |

(Ball) LaMotte

Eocene

Indio Formation

USA
Texas

|  |

A Litsea species
First described as Malapoenna sagittata (1931)

Ocotea alia[1]

Sp nom nov

|  |

LaMotte

Eocene

Wilcox Formation

USA
Arkansas

* Andromeda delicatida
(of Hollick, 1899)

An Ocotea species
A replacement name for Mespilodaphne coushatta (Berry, 1916) (1916)

Ocotea athenensis[1]

Comb nov

|  |

(Ball) LaMotte

Eocene

Wilcox Formation

USA
Texas

|  |

An Ocotea species
Moved from Mespilodaphne athenensis (1939)

Ocotea attenuata[1]

Comb nov

|  |

(Ball) LaMotte

Eocene

Wilcox Formation

USA
Texas

|  |

An Ocotea species
Moved from Mespilodaphne attenuata (1939)

Ocotea berryana[1]

Sp nom nov

|  |

LaMotte

Eocene

Lagrange Formation

USA
Tennessee

|  |

An Ocotea species
A replacement name for Mespilodaphne puryearensis (Berry, 1916) (1916)

Ocotea brazosensis[1]

Comb nov

|  |

(Ball) LaMotte

Eocene

Fayette Formation

USA
Texas

|  |

An Ocotea species
Moved from Oreodaphne brazosensis (1924)

Ocotea caudata[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Mount Selman Formation

USA
Texas

|  |

An Ocotea species
Moved from Mespilodaphne caudata (1924)
Includes one subspecies moved from M. c. major

Ocotea collazoensis[1]

Comb nov

|  |

(Hollick) LaMotte

Miocene

Collazo Shales

USA
Puerto Rico

|  |

An Ocotea species
Moved from Aniba collazoensis (1928)

Ocotea coloradensis[1]

Comb nov

|  |

(Brown) LaMotte

Eocene

Green River Formation

USA
Colorado

|  |

An Ocotea species
Moved from Oreodaphne coloradensis (1934)

Ocotea columbiana[1]

Comb nov

|  |

(Hollick) LaMotte

Eocene

Lisbon Formation

USA
Mississippi

|  |

An Ocotea species
Moved from Mespilodaphne columbiana (1924)

Ocotea coushatta[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Wilcox Formation

USA
Louisiana

* Tetrantkera praecursoria
(of Hollick, 1899)

An Ocotea species
Moved from Oreodaphne coushatta (1916)

Ocotea culebrensis[1]

Comb nov

|  |

(Berry) LaMotte

Oligocene

Culebra Formation

Panama

|  |

An Ocotea species
Moved from Mespilodaphne columbiana (1924)

Ocotea eolignitica[1]

Comb nov

|  |

(Hollick) LaMotte

Eocene

|  |

USA
Louisiana

|  |

An Ocotea species
Moved from Mespilodaphne eolignitica (1916)
First named Andromeda eolignitica (1899)

Ocotea hispanioiana[1]

Comb nov

|  |

(Berry) LaMotte

Miocene

Arbitonite Group

Haiti

|  |

An Ocotea species
Moved from Mespilodaphne hispanioiana (1922)

Ocotea inequilateralis[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Gosport Formation

USA
Alabama

|  |

An Ocotea species
Moved from Mespilodaphne inequilateralis (1924)

Ocotea intermedia[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Holly Springs Formation

USA
Tennessee

|  |

An Ocotea species
Moved from Mespilodaphne intermedia (1930)

Ocotea lancifolia[1]

Comb nov

|  |

(Lesquereux) LaMotte

Eocene
Ypresian

Holly Springs Formation

USA
Tennessee

* Oreodaphne knowltoni (1929)

An Ocotea species
Moved from Oreodaphne lancifolia (1934)
First described as Sapindus lancifolius (1883)

Ocotea lithaeformis[1]

Comb nov

|  |

(Lesquereux) LaMotte

|  |  |

USA
California

* Oreodaphne heerii (1888)

An Ocotea species
Moved from Mespilodaphne lithaeformis (1888)

Ocotea mississippiensis[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Holly Springs Formation

USA
Mississippi

* Laurus primigenia (of Hollick)

An Ocotea species
Moved from Mespilodaphne lithaeformis (1916)

Ocotea obtusifolia[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Holly Springs Formation

USA
Mississippi

* Cinnamomum sezannense (of Hollick 1899)

An Ocotea species
Moved from Oreodaphne obtusifolia (1916)

Ocotea pagosensis[1]

Comb nov

|  |

(Hollick) LaMotte

Paleocene

Animas Formation

USA
Colorado

|  |

An Ocotea species
Moved from Oreodaphne pagosensis (1924)

Ocotea palomarensis[1]

Comb nov

|  |

(Berry) LaMotte

Miocene

|  |

Mexico
Oaxaca

|  |

An Ocotea species
Moved from Mespilodaphne obtusifolia (1923)

Ocotea perseaformis[1]

Comb nov

|  |

(Ball) LaMotte

Eocene

Indio Formation

USA
Texas

|  |

An Ocotea species
Moved from Oreodaphne perseaformis (1939)

Ocotea praefracta[1]

Comb nov

|  |

(Ball) LaMotte

Eocene

Wilcox Formation

USA
Texas

|  |

An Ocotea species
Moved from Oreodaphne praefracta (1939)

Ocotea precoushatta[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Indio Formation

USA
Texas

|  |

An Ocotea species
Moved from Mespilodaphne perseaformis (1924)

Ocotea pseudoglauca[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Wilcox Formation

USA
Louisiana

synonymy

* Laurus californica pro part (1888)
* Laurus socialis pro part (1888)

An Ocotea species
Moved from Mespilodaphne pseudoglauca (1916)

Ocotea pseudoguianensis[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Wilcox Formation

USA
Louisiana

|  |

An Ocotea species
Moved from Mespilodaphne pseudoguianensis (1916)

Ocotea puryearensis[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Ackerman Formation

USA
Mississippi

|  |

An Ocotea species
Moved from Oreodaphne pseudoguianensis (1916)

Ocotea (?) ratonensis[1]

Comb nov

|  |

(Hollick) LaMotte

Paleocene

Raton Formation

USA
Colorado

|  |

An Ocotea species
Moved from Oreodaphne (?) ratonensis (1917)

Ocotea ripariafolia[1]

Comb nov

|  |

(Berry) LaMotte

Miocene

Forest Clay Formation

Trinidad and Tobago
Trinidad

|  |

An Ocotea species
Moved from Aniba ripariafolia (1937)

Ocotea salinensis[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Wilcox Formation

USA
Arkansas

|  |

An Ocotea species
Moved from Oreodaphne salinensis (1916)

Ocotea tertiaria[1]

Comb nov

|  |

(Berry) LaMotte

|  |  |

Costa Rica

|  |

An Ocotea species
Moved from Goeppertia tertiaria (1921)

Ocotea texana (Berry)[1]

Comb nov

Homonym

(Berry) LaMotte

Eocene

Fayette Formation

USA
Texas

|  |

An Ocotea species
Moved from Mespilodaphne texana (1924)
Homonym with Ocotea texana (Ball)

Ocotea texana (Ball)[1]

Comb nov

Homonym

(Ball) LaMotte

Eocene

Indio Formation

USA
Texas

|  |

An Ocotea species
Moved from Oreodaphne texana (1931)
Homonym with Ocotea texana (Berry)

Ocotea viridiflumensis[1]

Comb nov

|  |

(Knowlton) LaMotte

Eocene

Green River Formation

USA
Colorado

|  |

An Ocotea species
Moved from Oreodaphne coloradensis (1923)

Ocotea wilcoxensis[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Wilcox Formation

USA
Tennessee

|  |

An Ocotea species
Moved from Oreodaphne wilcoxensis (1916)

Sassafras quilchenensis[1]

Sp nom nov

|  |

LaMotte

Eocene
Ypresian

Eocene Okanagan Highlands
Coldwater Beds

Canada
British Columbia

|  |

A Sassafras species
A new name for Sassafras cretaceum (Penhallow) (1906)

Umbellularia saliciformis[1]

Comb nov

|  |

(Knowlton & Cockerell) LaMotte

Miocene

Neroly Formation

USA
California

synonymy

* Laurus similis (of Berry 1929)
* Leguminosites bonseri (1929)
* Quercus simulata (of Berry 1929)
* Umbellularia dayana (1937)
* Umbellularia oregonensis (1930)
* Umbellularia salicifolia (1939)

A California bay species
Moved from Laurus saliciformis (1919)
First named Laurus salicifolia (Lesquereux) (1883)
L. salicifolia a jr homonym of Laurus salicifolia (Banks & Solander)

### Monocots

[edit]

Name  | Novelty  | Status  | Authors  | Age  | Unit  | Location  | Synonymized taxa  | Notes  | Images

|
|
|
|
|
|
|
|
|

Cyperacites islandicus[1]

Comb nov

|  |

(Heer) LaMotte

Paleocene

|  |

Iceland

|  |

A Cyperacites morphospecies
Moved from Cyperites islandicus (1868)

Exflabellaria[1]

Gen et 4 comb nov

Jr synonym

LaMotte

|  |  |  |  |

A palm leaf morphogenus
Replacement genus for the homonym Flabellaria (Sternberg) (1822)
Jr synonym of Palmacites
Contained Flabellaria alaskana,[4] F. groenlandica, F. johnstrupi, & F. latania

Potamogeton orbus[1]

Sp nom nov

|  |

LaMotte

Miocene

Latah Formation

USA
Washington

|  |

A possible pond weed species
New name for referred "Potamogeton heterophylloides" fossils
P. heterophylloides type specimens moved to Keteleeria heterophylloides (1940)

### Basal eudicots

[edit]

Name  | Novelty  | Status  | Authors  | Age  | Unit  | Location  | Synonymized taxa  | Notes  | Images

|
|
|
|
|
|
|
|
|

Nelumbium crossii[1]

Comb nov

|  |

(Knowlton) LaMotte

Paleocene

Arapahoe Formation

USA
Colorado

|  |

A lotus relative.
Moved from Nelumbo crossii (1930)

Nelumbium protolutea[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Wilcox Formation

USA
Mississippi

* Nelumbo tenuifolia
(of Berry, 1935)

A lotus relative.
Moved from (1949)
Nelumbites protoluteus First named Nelumbo protolutea (1917)

### Core Eudicots

[edit]

#### Superasterids

[edit]

Name  | Novelty  | Status  | Authors  | Age  | Unit  | Location  | Synonymized taxa  | Notes  | Images

|
|
|
|
|
|
|
|
|

Achras agnitionalis[1]

Comb nov

|  |

(Hollick) LaMotte

Miocene

Collazo Shale

USA
Puerto Rico

|  |

A Manilkara species.
Moved from Sapota agnitionalis (1928)

Arbutus xalapoldes[1]

Sp nom nov

|  |

LaMotte

Pliocene

|  |

USA
California

|  |

A madrone.
New name for "Arbutus prexalapensis" (1950) madrone fossils
Type material of A. prexalapensis moved to other species

Ardisia prepaniculata[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Wilcox Formation

USA
Tennessee

|  |

A marlberry species.
Moved from Icacorea prepaniculata (1916)

Ardisia prisca[1]

Comb nov

|  |

(Hollick) LaMotte

Miocene

Collazo Shale

USA
Puerto Rico

|  |

A marlberry species.
Moved from Icacorea prisca (1924)

Asclepias fructifer[1]

Comb nov

|  |

(Cockerell) LaMotte

Eocene
Priabonian

Florissant Formation

USA
Colorado

|  |

A milkweed species.
Moved from Acerates fructifer (1908)

Asclepias veterana[1]

Comb nov

|  |

(Heer) LaMotte

Miocene

|  |

Switzerland

|  |

A milkweed species.
Moved from Acerates veterana (1859)

Asclepias wilcoxiana[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Wilcox Formation

USA
Tennessee

|  |

A milkweed species.
Moved from Acerates wilcoxiana (1930)

Coccoloba chapini[1]

Comb nov

|  |

(Hollick) LaMotte

Paleocene/Eocene

Matanuska coal field

USA
Alaska

|  |

A Coccoloba species.
Moved from Coccolobis chapini (1936)[4]

Coccoloba claibornensis[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Gosport Formation

USA
Alabama

|  |

A Coccoloba species.
Moved from Coccolobis claibornensis (1924)

Coccoloba columbianus[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Yegua Formation

USA
Louisiana

|  |

A Coccoloba species.
Moved from Coccolobis columbianus (1924)

Coccoloba eolignitica[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Lagrange Formation

USA
Tennessee

|  |

A Coccoloba species.
Moved from Coccolobis columbianus (1916)

Coccoloba uviferafolia[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Lagrange Formation

USA
Tennessee

|  |

A Coccoloba species.
Moved from Coccolobis uviferafolia (1916)

Cryptantha auriculata[1]

Comb nov

|  |

(Elias) LaMotte

Pliocene

Ogallala Formation

USA
Kansas

|  |

A Cryptantha species.
Moved from Krynitikia auriculata (1932)

Cryptantha chaneyi[1]

Comb nov

|  |

(Elias) LaMotte

Pliocene

Ogallala Formation

USA
Kansas

|  |

A Cryptantha species.
Moved from Krynitzkia (Oreocarya) chaneyi (1932)

Cryptantha coroniformis[1]

Comb nov

|  |

(Elias) LaMotte

Pliocene

Ogallala Formation

USA
Kansas

|  |

A Cryptantha species.
Moved from Krynitzkia (Oreocarya) coroniformis (1932)

Gonolobus (?) trinervatus[1]

Comb nov

|  |

(MacGinitie) LaMotte

Miocene

Trout Creek Flora

USA
Oregon

|  |

An asclepiadoid milkweed family species
Moved from Vincetoxicum (?) trinervata (1933)

Halesia inopinum[1]

Comb nov

|  |

(Hollick) LaMotte

Paleocene

Berg lake Formation

USA
Alaska

|  |

A snowdrop tree species
Moved from Mohrodendron inopinum (1936)[4]

Leiophyllum pleistocenicum[1]

Comb nov

|  |

(Berry) LaMotte

Pleistocene

|  |

USA
North Carolina

|  |

A sandmyrtle species
First described as Dendrium pleistocenicum (1907)

Viburnum comstocki[1]

Comb nov

|  |

(Sanborn) LaMotte

Eocene

|  |

USA
Oregon

synonymy

* Aralia taurinensis (pro part of Sanborn 1935)
* Diospyros orientalis (1935)
* Viburnum variabilis (1941)

A Viburnum species
First described as Mallotus comstocki (1935)

#### Superrosids

[edit]

Name  | Novelty  | Status  | Authors  | Age  | Unit  | Location  | Synonymized taxa  | Notes  | Images

|
|
|
|
|
|
|
|
|

Acer (Negundo) decurrens[1]

Comb nov

|  |

(Lesquereux) LaMotte

Paleocene

Denver Formation

USA
Colorado

|  |

A maple.
Moved from Negundo decurrens (1888)

Acer (Negundo) fremontensis[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Bridger Formation

USA
Wyoming

|  |

A maple.
Moved from Negundo fremontensis (1930)

Acer negundifolium[1]

Comb nov

|  |

(Dawson) LaMotte

Eocene
(Ypresian)

Eocene Okanagan Highlands
Stump lake

Canada
British Columbia

|  |

A possible maple.
Moved from Acerites negundifolium (1891)

Acer orbum[1]

Sp nom nov

|  |

LaMotte

Eocene

Ione Formation

USA
California

|  |

A maple.
New name for Acer aequidentatum maple fossils
A. aequidentatum type fossils moved to Platanus appendiculata

Acer (Negundo) triloba[1]

Comb nov

|  |

(Newberry) LaMotte

Paleocene

Fort Union Formation

USA
North Dakota

|  |

A maple.
Moved from Negundo triloba (1868)

Acer tuckeri[1]

Comb nov

|  |

(Smith) LaMotte

Pliocene

"Hog Creek"

USA
Idaho

|  |

A maple.
Moved from Engdhardtia tuckeri (1938)

Canarium leonis[1]

Comb nov

|  |

(Cockerell) LaMotte

Eocene

Ione Formation

USA
California

synonymy

* Juglans californica (1878)
* Canarium californicum (1941)

A Canarium species.
Moved from Juglans leonis (1908)

Carya bartoni[1]

Comb nov

|  |

(Ball) LaMotte

Eocene

|  |

USA
Texas

|  |

A hicory species.
Moved from Hicoria bartoni (1931)

Carya biacuminata[1]

Comb nov

|  |

(Perkins) LaMotte

Eocene

Brandon lignites

USA
Vermont

|  |

A hicory species.
Moved from Hicoria biacuminata (1904)

Carya crescentia[1]

Comb nov

|  |

(Knowlton) LaMotte

Paleocene

|  |

USA
Wyoming

|  |

A hickory species.
Moved from Hicoria crescentia (1899)

Carya culveri[1]

Comb nov

|  |

(Knowlton) LaMotte

Paleocene

|  |

USA
Wyoming

|  |

A hickory species.
Moved from Hicoria culveri (1899)

Carya dawsoni[1]

Comb nov

valid

(Berry) LaMotte

Early Eocene
(Ypresian)

Okanagan Highlands
Chu Chua Formation

Canada
British Columbia

|  |

A hickory.
Moved from Hicoria dawsoni (1962)

Carya dentata[1]

Comb nov

|  |

(Knowlton) LaMotte

Paleocene

|  |

USA
Wyoming

|  |

A hickory species.
Moved from Hicoria culveri (1899)

Carya jacksoniana[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Yegua Formation

USA
Texas

synonymy

* Carya olivaeformis (1859)
* Hicoria pecan (1915)

A hickory species.
Moved from Hicoria jacksoniana (1924)

Carya juxtaporipites[1]

Comb nov

|  |

(Berry) LaMotte

Eocene
Ypresian

Green River Formation

USA
Colorado

|  |

A hickory species.
Moved from Hicoria juxtaporipites (1933)

Carya (?) oregoniana[1]

Comb nov

|  |

(Knowlton) LaMotte

Eocene

Clarno Formation

USA
Oregon

|  |

A hickory species.
Moved from Hicoria (?) oregoniana (1902)

Carya orientalis[1]

Comb nov

|  |

(Chaney) LaMotte

Oligocene

Eagle Creek flora

USA
Oregon

|  |

A hickory species.
Moved from Hicoria orientalis (1920)

Carya pretexana[1]

Comb nov

|  |

(Berry) LaMotte

Pliocene

Citronelle Formation

USA
Alabama

|  |

A hickory species.
Moved from Hicoria pretexana (1916)

Carya princetoniana[1]

Comb nov

|  |

(Cockerell) LaMotte

Eocene
Priabonian

Florissant Formation

USA
Colorado

|  |

A hickory species.
Moved from Hicoria princetoniana (1908)

Carya rostrataformis[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Lagrange Formation

USA
Tennessee

|  |

A hickory species.
Moved from Hicoria rostrataformis (1924)

Carya stanleyanum[1]

Comb nov

valid

(Dawson) LaMotte

Early Eocene
(Ypresian)

Huntingdon Formation

Canada
British Columbia

|  |

A hickory.
Moved from Hicoria dawsoni (1962)
First named Dryophyllum stanleyanum (1895)

Carya williamsi[1]

Comb nov

|  |

(Chaney) LaMotte

Oligocene

Eagle Creek flora

USA
Oregon

|  |

A hickory species.
Moved from Hicoria williamsi (1920)

Celtis americana[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

McBean Formation

USA
Georgia

Mimosa americana (1919)

A Celtis species.
Moved from Momisia americana (1914)

Cercidiphyllum piperoides[1]

Comb nov

|  |

(Lesquereux) LaMotte

Eocene

Ione Formation

USA
California

synonymy

* Ceanothus idahoensis (1935)
* Cercidiphyllum elongatum (1939)
* Populus smilacifolia (1920)
* Populus zaddachi (1878)
* Trochodendroides zaddacki (1935)
* Zizyphus californica (1919)
* Zizyphus microphyUus (Lesquereux) (1878)

A katsura species.
Moved from Zizyphus piperoides (1878)
Moved to Tetracentron piperoides in 1977[3]

|  Tetracentron piperoides

Comptonia parvula[1]

Comb nov

|  |

(Heer) LaMotte

Cretaceous

Patoot beds

Denmark
Greenland

synonymy

* Myrica (Comptonia) parvifolia (1883)
* Comptonia microphylla (1906)

A Comptonia species.
Moved from Myrica (Comptonia) parvula (1916)

Cupanites berryi[1]

Sp nom nov

|  |

LaMotte

Eocene

Barnwell Formation

USA
Georgia

|  |

A sapindaceous Cupanites species.
A new name for Cupanites nigricans (1918)

Inga alia[1]

Sp nom nov

|  |

LaMotte

Miocene

|  |

Cuba

|  |

An ice-cream-bean species
A new species name for Inga miocenica (Berry, 1939) (1939)

Liquidambar dubia[1]

Sp nom nov

|  |

(Berry) LaMotte

Eocene

Lagrange Formation

USA
Kentucky

|  |

A sweetgum species
A replacement name for Liquidambar incerta (Berry, 1924) (1924)

Macrolobium geminifolia

Comb nov

|  |

(MacGinitie) LaMotte

Eocene

Ione Formation

USA
California

|  |

A Macrolobium species legume.
Moved from Vouapa geminifolia (1941)

Melastomites incertus[1]

Sp nom nov

|  |

LaMotte

Oligocene

Culebra Formation

Panama

|  |

A melastome species
A replacement name for Melastomites miconioides (Berry, 1919) (1919)

Populus americana[1]

Comb nov

|  |

(Lesquereux) LaMotte

Eocene
Priabonian

Florissant Formation

USA
Colorado

synonymy

* Populus heerii (of Lesquereux 1883)
* Populus lesquereuxi (1906)

A cottonwood species.
Moved from Pterocarya americana (1874)

Populus (?) paramonodon[1]

Sp nom nov

|  |

LaMotte

Paleocene

|  |

USA
New Mexico

|  |

A possible cottonwood species
New name for referred "Populus monodon" fossils
P. monodon type specimens moved to Ficus monodon

Prunus gracilis (Lesquereux)[1]

Comb nov

Jr homonym

(Lesquereux) LaMotte

Eocene
Pribonian

Florissant Formation

USA
Colorado

* Quercus neriifolia
(of Lesquereux, 1883

A possible cherry species
Moved from Amygdalus gracilis (1883)
Jr homonym of Prunus gracilis (Engelm. & A.Gray)

Prunus wilcoxiana[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Tallahatta Formation
Holly Springs Sand Member

USA
Tennessee

|  |

A possible cherry species
Moved from Amygdalus wilcoxiana (1930)

Pyrus alvordensis[1]

Comb nov

|  |

(MacGinitie) LaMotte

|  |

Trout Creek flora

USA
Oregon

|  |

A possible mountain ash species
Moved from Sorbus alvordensis (1933)

Pyrus coronariafolia[1]

Comb nov

|  |

(Berry) LaMotte

Pleistocene

|  |

USA
North Carolina

|  |

A possible apple species
Moved from Malus coronariafolia (1907)

Pyrus decorafolia[1]

Comb nov

|  |

(Berry) LaMotte

Eocene
(Ypresian)

Okanagan Highlands
Chu Chua Formation

Canada
British Columbia

|  |

A possible mountain ash species
Moved from Sorbus decorafolia (1926)

Pyrus diversifolia (Lesquereux)[1]

Comb nov

Jr homonym

(Lesquereux) LaMotte

Eocene
(Priabonian)

Florissant Formation

USA
Colorado

synonymy

* Crataegus acerifolia (Lesquereux) (1883)
* Crataegus lesquereuxi (1906)
* Onoclea reducta (1908)

A possible mountain ash species
Moved from Sorbus diversifolia (1918)
First named Myrica diversifolia (1883)
homonym of Pyrus diversifolia Bong.

Pyrus grandifolia[1]

Comb nov

|  |

(Heer) LaMotte

Paleocene

|  |

Denmark
Greenland

|  |

A possible mountain ash species
Moved from Sorbus grandifolia (1869)

Pyrus harneyensis[1]

Comb nov

|  |

(Axelrod) LaMotte

Pliocene

|  |

USA
Oregon

|  |

A possible mountain ash species
Moved from Sorbus harneyensis (1944)

Pyrus idahoensis[1]

Comb nov

|  |

(Brown) LaMotte

Oligocene

Salmon flora

USA
Idaho

|  |

A possible apple species
Moved from Malus idahoensis (1935)

Pyrus megaphylla[1]

Comb nov

|  |

(Cockerell) LaMotte

Eocene
Priabonian

Florissant Formation

USA
Colorado

|  |

A possible mountain ash species
Moved from Sorbus megaphylla (1908)

Pyrus nupta[1]

Comb nov

|  |

(Cockerell) LaMotte

Eocene
Priabonian

Florissant Formation

USA
Colorado

* Myrica diversifolia (1883) pro part

A possible mountain ash species
Moved from Sorbus nupta (1910)

Pyrus pseudoangustifolla[1]

Comb nov

|  |

(Berry) LaMotte

Pleistocene

|  |

USA
North Carolina

|  |

A possible apple species
Moved from Malus pseudoangustifolla (1910)

Shepherdia weaveri[1]

Comb nov

|  |

(Hollick) LaMotte

Paleocene \- Eocene

"Kachemak Bay flora"

USA
Alaska

|  |

A possible buffaloberry species
Moved from Lepargyraea weaveri (1936)[4]

Sphaeralcea (?) exhumatum[1]

Comb nov

|  |

(Cockerell) LaMotte

Eocene
Priabonian

Florissant Formation

USA
Colorado

|  |

A possible globemallow species
Moved from Malvastrum (?) exhumatum (1906)

Ulmus chuchuanus[1]

Sp nom nov

valid

(Berry) LaMotte

Eocene
(Ypresian)

Okanagan Highlands
Chu Chua Formation

Canada
British Columbia

|  |

An elm.
New name for "Ulmus columbianus" Berry (1926)
Junior homonym of "Ulmus columbiana" Penhallow (1907)

|  Ulmus chuchuanus

Xanthoxylum alia[1]

Sp nom nov

|  |

LaMotte

Miocene

|  |

Cuba

|  |

A possible Zanthoxylum species
New name for Fagara miocenica Berry, 1939) (1939)
F. miocenica a jr homonym of Fagara miocenica (Berry, 1925)

Xanthoxylum apalachacolensis[1]

Comb nov

|  |

(Berry) LaMotte

Miocene

Alum Bluff Formation

USA
Florida

|  |

A possible Zanthoxylum species
Moved from Fagara apalachacolensis (1916)

Xanthoxylum catahoulensis[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Catahoula Formation

USA
Louisiana

|  |

A possible Zanthoxylum species
Moved from Fagara catahoulensis (1916)
4 varieties also moved F. c. corlacea, F. c. elongata, F. c. major, & F. c. orbiculata

Xanthoxyium claibornensis[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Mount Selman Formation

USA
Texas

|  |

A possible Zanthoxylum species
Moved from Fagara claibornensis (1924)

Xanthoxyium (?) delicatula[1]

Comb nov

|  |

(Cockerell) LaMotte

Eocene
Priabonian

Florissant Formation

USA
Colorado

|  |

A possible Zanthoxylum species
Moved from Fagara (?) delicatula (1908)

Xanthoxylum dubium[1]

Comb nov

nomen nudum

(Lesquereux) LaMotte

Paleocene

Raton Formation

USA
New Mexico

|  |

A possible Zanthoxylum species
Moved from Zanthoxylum dubium (1872)
Considered nomen nudum by LaMotte

Xanthoxylum eocenica[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Lagrange Formation

USA
Tennessee

|  |

A possible Zanthoxylum species
Moved from Fagara eocenica (1916)

Xanthoxylum juglandianum[1]

Comb nov

|  |

(Braun) LaMotte

"Tertiary"

|  |

Europe

|  |

A possible Zanthoxylum species
Moved from Zanthoxylum juglandianum (1878)

Xanthoxylum miocenica[1]

Comb nov

|  |

(Berry) LaMotte

Miocene

Forest Sand Formation

Trinidad

|  |

A possible Zanthoxylum species
Moved from Fagara miocenica (1925)

Xanthroxylum petraflumensis[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Yegua Formation

USA
Texas

|  |

A possible Zanthoxylum species
Moved from Fagara petraflumensis (1924)

Xanthoxylum puryearensis[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Lagrange Formation

USA
Tennessee

|  |

A possible Zanthoxylum species
Moved from Fagara eocenica (1916)

Xanthoxyium spireaefolia[1]

Comb nov

|  |

(Lesquereux) LaMotte

Eocene
Priabonian

Florissant Formation

USA
Colorado

|  |

A possible Zanthoxylum species
Moved from Fagara spireaefolia (1908)
First named Zanthoxylum spireaefolium (1883)

Xanthoxylum wadii[1]

Comb nov

|  |

(Berry) LaMotte

Miocene

|  |

Mexico
Oaxaca

|  |

A possible Zanthoxylum species
Moved from Fagara wadii (1923)

Xanthoxylum wyomingensis[1]

Comb nov

|  |

(Berry) LaMotte

Eocene

Bridger Formation

USA
Wyoming

|  |

A possible Zanthoxylum species
Moved from Fagara wyomingensis (1930)

### Other angiosperms

[edit]

Name  | Novelty  | Status  | Authors  | Age  | Unit  | Location  | Synonymized taxa  | Notes  | Images

|
|
|
|
|
|
|
|
|

Carpites interglacialis[1]

Comb nov

|  |

(Hollick) LaMotte

Miocene

St. Eugene Silts

Canada
British Columbia

synonymy

* Carpites menthoides (1926)
* Carpolithes sp. (1937)
* Equisetum sp. (underground stem) (1926)
* Malva (?) hesperia (1928)
* Phyllites amplexicaulis (1926)

A fruit/seed species of uncertain affinity.
Moved from Ficus interglacalis (1928)

## General research

[edit]

* Robert LaMotte publishes the Catalogue of the Cenozoic plants of North America through 1950, with numerous nomenclatural updates and corrections.[1]

## References

[edit]

1. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz ca cb cc cd ce cf cg ch ci cj ck cl cm cn co cp cq cr cs ct cu cv cw cx cy cz da db dc dd de df dg dh di dj dk dl dm dn do dp dq dr ds dt du dv dw dx dy dz ea eb ec ed ee ef eg eh ei ej ek el em en eo ep eq er es et eu ev ew ex LaMotte, R.S. (1952). Catalogue of the Cenozoic plants of North America through 1950. Geological Society of America Memoirs. Vol. 51\. Geological Society of America. doi:10.1130/MEM51.
2. ^ a b c d Miller, N. G. (1980). "Fossil mosses of North America and their significance". The Mosses of North America. pp. 9–36.
3. ^ a b c Wolfe, J.A. (1977). Paleogene floras from the Gulf of Alaska region (Report). Professional Paper. Vol. 997\. United States Geological Survey. pp. 1–108\. doi:10.3133/pp997.
4. ^ a b c d e Hollick, A.; Smith, P. (1936). The Tertiary floras of Alaska, with a chapter on the geology of the Tertiary deposits (Report). Professional Paper. United States Geological Survey. pp. 1–185\. doi:10.3133/pp182. 182.

*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template