Waterford Formation, Ecca Group, Prince Albert, Cape Province (Permian of South Africa)

Where: South Africa (33.2° S, 22.0° E: paleocoordinates 59.9° S, 38.1° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Waterford Formation (Ecca Group), Wordian (268.8 - 265.1 Ma)

• Presence of late Kazanian (=late Wordian) tetrapods in the conformably overlying fluviatile Beaufort Group suggests mid- to early late Kazanian (=mid-Wordian) age. Scale of resolution is unspecified but specimens likely derived from multiple intervals.

Environment/lithology: lacustrine delta front; gray limestone

• Collected from dark grey limestone pods.

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: M. R. Cooper and B. Kensley. 1984. Endemic South American Permian bivalve molluscs from the Ecca of South Africa. Journal of Paleontology 58(6):1360-1363 [D. Bottjer/M. Clapham/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 41328: authorized by David Bottjer, entered by Matthew Clapham on 12.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Only studied bivalves so other groups may have been present.
Bivalvia
 Modiomorphida - Modiomorphidae
Naiadopsis lamellosus Mendes 1952 clam
 Pholadomyida - Megadesmidae
cf. Pyramus cowperesoides clam
Fragment that compares favorably with this genus/species
 Pholadomyida -