Gram Formation

Gram Formation
Stratigraphic range: Tortonian
~11.6–7.2 Ma

PreЄ

Є

O

S

D

C

P

T

J

K

Pg

N

↓
Gram Formation; Stratigraphic range: Tortonian; ~11.6–7.2 Ma PreЄ Є O S D C P T J K Pg N ↓
	Gram Clay Pit, the prime source of fossils from the Gram Formation
Type	Formation
Lithology
Primary	Claystone
Location
Coordinates	[ ⚑ ] : 55°18′N 9°06′E / 55.3°N 9.1°E
Paleocoordinates	[ ⚑ ] 55°36′N 8°06′E / 55.6°N 8.1°E
Region	Jutland
Country	Denmark
Type section
Named for	Gram
	Gram Formation (Denmark)

Short description: Geologic formation in Gram, Denmark

The Gram Formation is a geological formation in Gram, Denmark. It preserves fossils dating from the Miocene period. The formation consists of three layers: the glauconite-rich, the Gram Clay, and the Gram sand. The sediments in the formation were deposited in an open marine depositional environment known as the Gram Sea.

Fossil content

Many fossils of new species have been discovered in the formation, including those of the beaked-whale Dagonodum mojnum^[1] and the mollusk species Pseudocochlespira gramensis,^[2] as well as specimens of better-known species such as Carcharodon megalodon.^[3]

References

↑ Ramassamy, Benjamin; Lauridsen, Henrik (October 2019). "A new specimen of Ziphiidae (Cetacea, Odontoceti) from the late Miocene of Denmark with morphological evidence for suction feeding behaviour". Royal Society Open Science 6 (10): 191347. doi:10.1098/rsos.191347. PMID 31824732. Bibcode: 2019RSOS....691347R.
↑ http://natuurtijdschriften.nl/download?type=document&docid=674554^{[|permanent dead link|dead link}}]}^{[full citation needed]}
↑ Almgreen, S. E. Bendix (15 November 1983). "Carcharodon megalodon from the Upper Miocene of Denmark, with comments on elasmobranch tooth enameloid: coronoïn". Bulletin of the Geological Society of Denmark 32: 1–32. doi:10.37570/bgsd-1983-32-01. NAID 10012345550.

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[1] Ramassamy, Benjamin; Lauridsen, Henrik (October 2019). "A new specimen of Ziphiidae (Cetacea, Odontoceti) from the late Miocene of Denmark with morphological evidence for suction feeding behaviour". Royal Society Open Science 6 (10): 191347. doi:10.1098/rsos.191347. PMID 31824732. Bibcode: 2019RSOS....691347R.

[2] ttp://natuurtijdschriften.nl/download?type=document&docid=674554^{[|permanent dead link|dead link}}]}^{[full citation needed]}

[3] Almgreen, S. E. Bendix (15 November 1983). "Carcharodon megalodon from the Upper Miocene of Denmark, with comments on elasmobranch tooth enameloid: coronoïn". Bulletin of the Geological Society of Denmark 32: 1–32. doi:10.37570/bgsd-1983-32-01. NAID 10012345550.

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[2]

[3]

Gram Formation

Topic: Earth

Fossil content

See also

References