Arroyo de Las Pulgas-5 (Carboniferous to of Mexico)

Also known as API-5

Where: Oaxaca, Mexico (17.6° N, 97.1° W: paleocoordinates 15.7° S, 50.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Ixaltepec Formation, Morrowan to Morrowan (323.2 - 306.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified, gray, calcareous sandstone and lithified, brown shale

• Gray calcareous sandstone interbedded with dark brown shale, the latter with ripple maeks. At 140 m above the base

Size class: macrofossils

Primary reference: S. A. Quiroz-Barroso and M. Del Carmen Perrilliat. 1998. Pennsylvanian bivalves from the Ixaltepec formation, Mexico. Journal of Paleontology 72(6):1011-1024 [J. Alroy/C. Simpson/C. Simpson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 44297: authorized by John Alroy, entered by Carl Simpson on 08.09.2004, edited by Pedro Monarrez

Creative Commons license: CC BY (attribution)

Taxonomic list

Anthozoa
  -
Anthozoa indet. Ehrenberg 1834
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
Bivalvia
 Carditida - Astartidae
Astartella concentrica Conrad 1842 clam
 Cardiida - Kalenteridae
 Pholadomyida - Edmondiidae
Edmondia ovata Meek and Worthen 1873 clam
 Cardiidia - Grammysiidae
Ectogrammysia prolata Hoare 1993 clam
 Myalinida - Myalinidae
"Myalinella mieeki" = Myalina (Myalinella), Septimyalina sp.
"Myalinella mieeki" = Myalina (Myalinella) clam
Septimyalina sp. Newell 1942 clam
 Pectinida - Aviculopectinidae
Aviculopecten cf. basilicus Newell 1938 scallop
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Brachiopoda
  -
Brachiopoda indet. Cuvier 1805
Strophomenata
 Productida - Linoproductidae
Trilobita
  -
Trilobita indet. Walch 1771 trilobite
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily