V5A8, V5A traverse, Punta San Hipolito, Baja California (Triassic to of Mexico)

Where: Mexico (30.0° N, 114.0° W: paleocoordinates 9.3° N, 54.4° W)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Pantanellium silberlingi rad. zone other zone, Chert Member (San Hipolito Formation), Alaunian to Alaunian (215.6 - 205.6 Ma)

• middle to late Norian

• bed-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified, tuffaceous, green, red chert

• Alternating beds of green aphanocrystalline to very finely crystalline, Halobia- and radiolarian- bearing tuffaceous chert with subordinate red radiolarian chert.

Size class: 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 131161: 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
Protozoa
 Entactinaria - Saturnalidae
Pseudoheliodiscus viejoensis, Pseudoheliodiscus finchi
Pseudoheliodiscus viejoensis Pessagno et al. 1979 radiolarian
Pseudoheliodiscus finchi Pessagno et al. 1979 radiolarian
 Spumellaria - Capnuchosphaeridae
Capnuchosphaera sp., Capnuchosphaera mexicana, Sarla natividadensis, Sarla vetusta
Capnuchosphaera sp. De Wever 1979 radiolarian
Capnuchosphaera mexicana Pessagno et al. 1979 radiolarian
Sarla natividadensis Pessagno et al. 1979 radiolarian
Sarla vetusta Pessagno et al. 1979 radiolarian
 Spumellaria - Pantanelliidae
Pantanellium tozeri
Pantanellium tozeri Pessagno et al. 1979 radiolarian