BV-Eastern Coahuila(MEX) (Cretaceous of Mexico)

Where: Coahuila, Mexico (27.0° N, 102.0° W)

• Paleocoordinates: 26.9° N, 41.9° W (Wright 2013)

• outcrop-level geographic resolution

When: Barril Viejo Shale Member, Hauterivian (132.9 - 129.4 Ma)

• bed-level stratigraphic resolution

Environment/lithology: gray, calcareous shale

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 2145: authorized by Mark Patzkowsky, entered by Karen Layou on 23.06.1999

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Terebratulida - Terebratulidae
Terebratula coahuilensis
Bivalvia
 Arcida - Cucullaeidae
Cucullaea gabrielis
Cucullaea gabrielis clam
"gabrielis var. fraterna" - originally entered as "Cucullaea gabrielis var. fraterna"
 Arcida - Parallelodontidae
Grammatodon sp.
Grammatodon sp. Meek and Hayden 1860 clam
 Pectinida - Limidae
Lima kanei
Lima kanei Imlay 1940 file clam
 Pectinida - Plicatulidae
Plicatula sp. n. sp., Plicatula umbonata
Plicatula sp. n. sp. Lamarck 1801 scallop
originally entered as "Plicatula n. sp."
Plicatula umbonata Imlay 1940 scallop
 Pectinida - Pectinoidae
Pecten sp., Prohinnites ordonesi
Pecten sp. Müller 1776 scallop
originally entered as "Pecten spp."
Prohinnites ordonesi Imlay 1940 scallop
 Pectinida - Neitheoidae
Neithea biangulata
Neithea biangulata Imlay 1940 scallop
 Pectinida - Entoliidae
Syncyclonema sp.
Syncyclonema sp. Meek 1864 scallop
 Ostreida - Pinnidae
Pinna sp.
Pinna sp. Linnaeus 1758 oyster
 Ostreida - Bakevelliidae
Gervillia alatior
Gervillia alatior Imlay 1940 oyster
 Ostreida - Gryphaeidae
aff. Exogyra latissima, Exogyra reedi
aff. Exogyra latissima oyster
"latissima var. aquila" - originally entered as "Exogyra aff. latissima var. aquila"
Exogyra reedi Imlay 1937 oyster
 Hiatellida - Hiatellidae
cf. Panopea gurgitis
cf. Panopea gurgitis clam
originally entered as "Panope cf. gurgitis"
 Cardiida - Arcticidae
"cf. Cyprina bernensis" = Arctica, "Cyprina sp." = Arctica
"cf. Cyprina bernensis" = Arctica clam
originally entered as "Cyprina cf. bernensis"
"Cyprina sp." = Arctica Schumacher 1817 clam
 Pholadomyida - Pholadomyidae
cf. Pholadomya sanctae-crucis, cf. Pholadomya gigantea
cf. Pholadomya sanctae-crucis Sowerby 1823 clam
originally entered as "Pholadomya cf. sanctae-crucis"
cf. Pholadomya gigantea Sowerby 1836 clam
originally entered as "Pholadomya cf. gigantea"
 Lucinida - Lucinidae
Lucina kellumi, Sphaera americanus
Lucina kellumi Imlay 1940 clam
Sphaera americanus Imlay 1940 clam
 Carditida - Astartidae
Astarte sp.
Astarte sp. Sowerby 1816 clam
Gastropoda
 Sorbeoconcha - Aporrhaidae
Harpagodes americanus, Harpagodes mexicanus
Harpagodes americanus Imlay 1940 snail
Harpagodes mexicanus Imlay 1940 snail
 Sorbeoconcha - Vermetidae
Vermetus cornejoi
Vermetus cornejoi Castillo and Aguilera 1895 worm shell
"cornejoi var. varians" - originally entered as "Vermetus cornejoi var. varians"
 Sorbeoconcha - Naticidae
cf. Natica neptuni, cf. Natica hugardiana
cf. Natica neptuni d'Orbigny 1850 moon snail
originally entered as "Natica cf. neptuni"
cf. Natica hugardiana d'Orbigny 1842 moon snail
originally entered as "Natica cf. hugardiana"
 Sorbeoconcha - Tylostomatidae
cf. Tylostoma laharpi
cf. Tylostoma laharpi Pictet and Campiche 1862 snail
originally entered as "Tylostoma cf. laharpi"
 Heterostropha - Nerineidae
Nerinea sp.
Nerinea sp. Deshayes 1827 snail
 Trochoidea - Turbinidae
? Turbo gigas
? Turbo gigas Imlay 1940 snail
originally entered as "Turbo? gigas"
 Trochoidea - Trochidae
Trochus sp. n. sp.
Trochus sp. n. sp. Linnaeus 1758 top snail
originally entered as "Trochus n. sp."
Cephalopoda
 Ammonitida - Polyptychitidae
Dichotomites multicostatus
Dichotomites multicostatus Imlay 1940 ammonite
 Ammonitida - Neocomitidae
"Leopoldia victoriensis" = Parrasites victoriensis, Acanthodiscus magnificus, cf. Acanthodiscus radiatus, Leopoldia truncata, Leopoldia crassicostata
"Leopoldia victoriensis" = Parrasites victoriensis Imlay 1938 ammonite
Acanthodiscus magnificus Imlay 1938 ammonite
cf. Acanthodiscus radiatus Bruguiére 1792 ammonite
originally entered as "Acanthodiscus cf. radiatus"
Leopoldia truncata Imlay 1940 ammonite
Leopoldia crassicostata Inlay 1938 ammonite