PM1-Eastern Coahuila(MEX): Hauterivian, Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Vermetidae
Vermetus cornejoi (Castillo and Aguilera 1895)
"cornejoi var. varians" - originally entered as "Vermetus cornejoi var. varians"
Bivalvia - Pectinida - Pectinidae
Prohinnites ordonesi Imlay 1940
Bivalvia - Pectinida - Neitheidae
Neithea biangulata Imlay 1940
Bivalvia - Ostreida - Gryphaeidae
Exogyra putnami Imlay 1937
synonym of Aetostreon subsinuatum
Exogyra reedi Imlay 1937
Bivalvia - Pholadomyida - Pholadomyidae
cf. Pholadomya gigantea (Sowerby 1836)
originally entered as "Pholadomya cf. gigantea"
Bivalvia - Trigoniida - Trigoniidae
cf. Trigonia caudata
originally entered as "Trigonia cf. caudata"
see common names

Geography
Country:Mexico State/province:Coahuila
Coordinates: 27.0° North, 102.0° West (view map)
Paleocoordinates:24.9° North, 55.2° West
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Stage:Hauterivian 10 m.y. bin:Cretaceous 2
*Epoch:Neocomian
Key time interval:Hauterivian
Age range of interval:132.60000 - 125.77000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Coahuila Member:Barril Viejo Shale
Local section:Potrero de Menchaca Local bed:Barril viejo shale
Stratigraphic resolution:bed
Lithology and environment
Primary lithology:gray calcareous "shale"
Taphonomy
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:2148
Authorizer:M. Patzkowsky Enterer:K. Layou
Research group:marine invertebrate
Created:1999-06-23 07:10:29 Last modified:1999-06-23 10:10:29
Access level:the public Released:2000-11-20 13:53:14
Creative Commons license:CC BY
Reference information

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