Cerro Puntiagudo FCMP/F3 (Permian of Mexico)

Also known as San Salvador Patlanoaya

Where: Puebla, Mexico (18.5° N, 98.3° W: paleocoordinates 6.4° S, 41.9° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Unit IV Member (Patlanoaya Formation), Kungurian (279.3 - 272.3 Ma)

• "Leonard"

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, concretionary, calcareous shale

• specimen was "embedded in a calcareous concretion" within a "shale layer"

Size class: macrofossils

Collection methods: UNAM collection

Primary reference: F. Sour-Tovar, S. A. Quiroz-Barroso, and S. P. Applegate. 2000. Presence of Helicoprion (Chondrichthyes, Elasmobranchii) in the Permian Patlanoaya Formation, Puebla, Mexico. Journal of Paleontology 74(2):363-366 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90679: authorized by John Alroy, entered by John Alroy on 12.08.2009, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

• all material was "associated" and possibly from the same concretion
Bivalvia
 Myalinida - Myalinidae
"Myalina apachesi" = Septimyalina burmai
"Myalina apachesi" = Septimyalina burmai Newell 1942 clam
 Cardiida - Kalenteridae
Permophorus sp. Chavan 1954 clam
Chondrichthyes
 Eugeneodontiformes - Helicoprionidae
Helicoprion davisii Woodward 1886 chimaera