C-1 (Flowerpot Formation) (Permian to of the United States)

Also known as Flowerpot Shale; Flowerpot Formation

Where: Canadian County, Oklahoma (35.6° N, 98.0° W: paleocoordinates 4.1° N, 26.7° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Flowerpot Formation (El Reno Group), Roadian to Roadian (272.3 - 264.3 Ma)

• "In Canadian County [the Chickasha Formation] interfingers with the upper part of the Flowerpot and with the Blaine Formation...." C-1 deposits..."appear to represent facies of the upper part of the Flowerpot, perhaps about 40 feet below the contact with the Blaine."

•Minimum age originally entered as >> Capitanian <<. These beds, however, are likely to be older (see, e.g., Reisz & Laurin, 2002, 114(9)).

• group of beds-level stratigraphic resolution

Environment/lithology: deltaic; conglomeratic mudstone and sandstone

• "The vertebrate fauna in the Chickasha deposits lived on a delta marginal to the sea in which the deposits of the El Reno Group were formed."
• The site consists of somewhat scattered small outcrops of cross-bedded sandstone and siltstone with patches of mudstone conglomerate...Scraps of bone have been found in the mudstone conglomerates."

Size class: macrofossils

Reposited in the FMNH

• A jaw with "strongly labyrinthine" teeth in extremely shallow 'sockets' is attributed to the Amphibia, otherwise occurrences are limited to 'scraps of bone'.

Primary reference: E. C. Olson. 1965. New Permian vertebrates from the Chickasha Formation in Oklahoma. Circular Oklahoma Geological Survey 70:1-70 [C. Sidor/C. Sidor/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 27576: authorized by John Alroy, entered by Robin Whatley on 12.12.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Tetrapoda -
Tetrapoda indet. tetrapod
CNHM UR 999 (jaw fragment = "new genus, not named") + 1 fragmentary rib (no catalogue no. given); originally entered as "Amphibia indet."; changed to "Tetrapoda indet." due to different concepts of "Amphibia" (e.g., inclusion or exclusion of Temnospondyli)