Ocozocoautla Fm., bed 2016 (Cretaceous of Mexico)

Where: Chiapas, Mexico (16.9° N, 93.1° W: paleocoordinates 21.9° N, 75.2° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Ocozocoautla Formation, Early/Lower Maastrichtian (70.6 - 66.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; green, calcareous sandstone

• gray to greenish gray marly sandstone; in the same beds are echinoids, gastropods, and a few poorly preserved ammonites.

Primary reference: G. Alencáster and L. Omaña. 2006. Maastrichtian inoceramid bivalves from Central Chiapas, southeaster México. Journal of Paleontology 80(5):946-957 [S. Peters/S. Peters/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 64439: authorized by Shanan Peters, entered by Shanan Peters on 08.09.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Myalinida - Inoceramidae
? Cataceramus cf. barabini, Trochoceramus aff. costaecus, Trochoceramus tricostatus n. sp.
Trochoceramus tricostatus n. sp. Alencáster and Omaña 2006 clam
Foraminifera
  -
Contusotruncana fornicata, Contusotruncana plicata
 Globigerinaceae - Heterohelicidae
Bolivinoides draco, "Pseudoguembelina excolata" = Guembelina excolata, Pseudotextularia elegans, Pseudotextularia intermedia
"Pseudoguembelina excolata" = Guembelina excolata Cushman 1926
 Globigerinaceae - Globotruncanidae
Rugotruncana subpenny, Gansserina gansseri, Globotruncana falsostuarti, Rugoglobigerina hexacamerata, Rugoglobigerina rugosa, Rugoglobigerina macrocephala
Gansserina gansseri Bolli 1951
Rugoglobigerina rugosa Plummer 1927
Rugoglobigerina macrocephala Broennimann 1952