Carbonera Formation, Mexico

Geologic formation in Mexico

Carbonera Formation

Stratigraphic range: Berriasian-Hauterivian
~145–125 Ma

PreꞒ

Type| Formation
Lithology
Primary| Sandstone, shale
Location
Coordinates| 24°12′N 102°48′W﻿ / ﻿24.2°N 102.8°W﻿ / 24.2; -102.8
Approximate paleocoordinates| 20°54′N 55°12′W﻿ / ﻿20.9°N 55.2°W﻿ / 20.9; -55.2
Region| Durango
Country|  Mexico

Carbonera Formation, Mexico (Mexico)

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Carbonera Formation, Mexico (Durango)

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The Carbonera Formation is a geologic formation in Mexico. It preserves fossils dating back to the Berriasian to Hauterivian stages of the Early Cretaceous period.[1]

## Fossil content

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The following fossils were reported from the formation:[1]

Ammonites

* Maderia casitensis
* Mexicanoceras laticostatum
* M. multicostatum
* ?Hemihoplites mexicanus
* cf. Phylloceras serum
* Distoloceras sp.

Bivalves

* Exogyra reedi
* Plicatula pulchra
* Gryphaea sp.

Gastropods

* Vermetus cornejoi
* Pleurotomaria sp.

Brachiopods

* Ptilorhynchia (Proteorhynchia) durangensis

Corals

* Paretallonia hispaniensis

## See also

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* List of fossiliferous stratigraphic units in Mexico

## References

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1. ^ a b Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.

### Bibliography

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* M. R. Sandy. 1990. Early Cretaceous brachiopods from Mexico and their paleobiogeographic significance. Journal of Paleontology 64(6):942-956
* R. W. Imlay. 1940. Neocomian Faunas of Northern Mexico. Geological Society America Bulletin 51(1):117-190