34-Eastern Durango (Cretaceous of Mexico)

Where: Durango, Mexico (24.2° N, 102.8° W: paleocoordinates 20.9° N, 55.2° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Carbonera Formation, Berriasian (145.0 - 139.8 Ma)

• bed-level stratigraphic resolution

Environment/lithology: sandstone

Primary reference: R. W. Imlay. 1940. Neocomian Faunas of Northern Mexico. Geological Society America Bulletin 51(1):117-190 [M. Patzkowsky/K. Layou/A. Clement]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 2154: authorized by Mark Patzkowsky, entered by Karen Layou on 23.06.1999, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Sorbeoconcha - Vermetidae
Vermetus cornejoi
Vermetus cornejoi Castillo and Aguilera 1895 worm shell
"cornejoi var. varians" - originally entered as "Vermetus cornejoi var. varians"
Bivalvia
 Carditida - Astartidae
Astarte durangensis
Astarte durangensis Imlay 1940 clam
 Cardiida - Trapezidae
Trapezium diversicostatum, ? Trapezium subtriangulum
? Trapezium subtriangulum Imlay 1940 clam
originally entered as "Trapezium? subtriangulum"
 Cardiida - Veneridae
Cyclorisma sp.
Cyclorisma sp. Dall 1902 venus clam
 Arcida - Cucullaeidae
Cucullaea sp., Cucullaea striatiumbonata
Cucullaea sp. Lamarck 1801 clam
Cucullaea striatiumbonata Imlay 1940 clam
 Ostreida - Pinnidae
cf. Pinna quadrifrons
cf. Pinna quadrifrons oyster
originally entered as "Pinna cf. quadrifrons"
 Ostreida - Gryphaeidae
Gryphaea sp., Exogyra reedi, aff. Exogyra tamaulipana
Gryphaea sp. Lamarck 1801 oyster
Exogyra reedi Imlay 1937 oyster
aff. Exogyra tamaulipana Imlay 1937 oyster
originally entered as "Exogyra aff. tamaulipana"
 Ostreida - Ostreidae
"Alectryonia sp." = Ostrea (Alectryonia)
"Alectryonia sp." = Ostrea (Alectryonia) Fischer de Waldheim 1807 oyster
 Pectinida - Plicatulidae
Plicatula torreoensis, Plicatula pulchra
Plicatula pulchra Imlay 1940 scallop
 Pectinida - Pectinoidae
Pecten sp.
Pecten sp. Müller 1776 scallop
originally entered as "Pecten spp."
Cephalopoda
 Ammonitida - Neocomitidae
cf. Thurmannites miquihuanensis
cf. Thurmannites miquihuanensis Imlay 1937 ammonite
originally entered as "Thurmannites cf. miquihuanensis"
 Ammonitida - Lytoceratidae
Lytoceras sp.
Lytoceras sp. Suess 1865 ammonite
Rhynchonellata
 Rhynchonellida - Rhynchonellidae
"Rhynchonella" durangensis