58-Coahuila (Cretaceous of Mexico)

Where: Mexico (27.0° N, 102.1° W: paleocoordinates 24.9° N, 55.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Carbonera Formation, Hauterivian (132.9 - 129.4 Ma)

Environment/lithology: marine; lithology not reported

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 2161: authorized by Mark Patzkowsky, entered by Karen Layou on 23.06.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Phylloceratida - Phylloceratidae
cf. Phylloceras serum
cf. Phylloceras serum Oppel 1865 ammonite
"serum var. perlobata" - originally entered as "Phylloceras cf. serum var. perlobata"
 Ammonitida - Neocomitidae
Distoloceras sp.
Distoloceras sp. Hyatt 1900 ammonite
"sp. juv." - originally entered as "Distoloceras sp. juv."
 Ammonitida - Hemihoplitidae
? Hemihoplites mexicanus
? Hemihoplites mexicanus Imlay 1940 ammonite
originally entered as "Hemihoplites? mexicanus"
 Ammonitida - Olcostephanidae
Maderia casitensis, Mexicanoceras laticostatum, Mexicanoceras multicostatum
Maderia casitensis Imlay 1940 ammonite
Mexicanoceras laticostatum Imlay 1940 ammonite
Mexicanoceras multicostatum Imlay 1940 ammonite