V5F6, Punta San Hipolito, Baja California (Triassic of Mexico)

Where: Mexico (30.0° N, 114.0° W: paleocoordinates 7.8° N, 54.0° W)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Limestone Member (San Hipolito Formation), Norian (228.0 - 208.5 Ma)

• Monotis cf. subcircularis indicates late Norian age

• bed-level stratigraphic resolution

Environment/lithology: basinal (); lithified, gray limestone and lithified, gray, sandy limestone

• Light gray, very fine crystalline, radiolarian-, Halobia-and Monotis-bearng recrystallized limestone, sandy limestone and plagioclase volcanic litharenite.

Size classes: macrofossils, microfossils

Primary reference: E. A. Pessagno, W. Finch, and P. L. Abbott. 1979. Upper Triassic Radiolaria from the San Hipólito Formation, Baja California. Micropaleontology 25(2):160-197 [J. Pálfy/A. Kocsis]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 131166: authorized by József Pálfy, entered by Adam Kocsis on 20.07.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

• Abundance categories: rare: 1-2 specimens; common: 3-6 specimens; abundant: >6specimens
Show authors, comments, and common names
Bivalvia
 Pectinida - Monotidae
"Monotis cf. subcircularis" = Monotis (Entomonotis) subcircularis
"Monotis cf. subcircularis" = Monotis (Entomonotis) subcircularis Gabb 1864 scallop
Protozoa
 Spumellaria - Capnuchosphaeridae
Sarla sp.
Sarla sp. Pessagno et al. 1979 radiolarian
 Spumellaria - Hagiastridae
Pseudohagiastrum monstruosum
Pseudohagiastrum monstruosum Pessagno 1979 radiolarian