UCMP 39179, Jemez Canyon (Abo Formation) (Permian of the United States)

Also known as Harvard locality, Canyon de San Diego

Where: Sandoval County, New Mexico (35.7° N, 106.8° W: paleocoordinates 6.2° N, 33.4° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Abo/Cutler Formation, Wolfcampian (298.9 - 286.0 Ma)

• "The fossiliferous levels of the Abo Formation in the vicinity of Jemez Springs are [...] probably latest Wolfcampian in age" (Berman, 1977)

• bed-level stratigraphic resolution

Environment/lithology: fluvial; red shale and coarse-grained, micaceous, red sandstone

• "relative abundance of micaceous and coarse arkosic detritus often associated with the bone-beds suggest that these Abo sediments were laid down nearer their source and under conditions of better regional drainage than contemporary "deltaic" Wichita rocks in Texas. The late Pennsylvanian and early Permian uplifts of the near-by "Ancestral Rockies" were evidently responsible for this early advent of red-bed deposition on the west side of the Permian Basin..."
• "red-mottled micaceous arkose"

•"red shale and coarse-grained stream channel sand" (Berman, 1977)

Size class: macrofossils

Reposited in the UCMP

Primary reference: A. S. Romer. 1937. New genera and species of pelycosaurian reptiles. Proceedings of the New England Zoölogical Club 16:89-95 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 28067: authorized by John Alroy, entered by Robin Whatley on 22.01.2003, edited by Torsten Liebrecht and Emma Dunne

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Amphibia
 Temnospondyli - Eryopidae
Eryops sp.2
Eryops sp.2 Cope 1877 tetrapod
Osteichthyes
 Cotylosauria - Diadectidae
Diadectidae indet.2
Diadectidae indet.2 Cope 1880 tetrapod
 Cotylosauria -
Archeria sp.3
Archeria sp.3 Case 1918 tetrapod
 Synapsida - Sphenacodontidae
Sphenacodontidae indet.2, Dimetrodon occidentalis n. sp.1, Sphenacodon ferocior
Sphenacodontidae indet.2 Marsh 1878 synapsid
Dimetrodon occidentalis n. sp.1 Berman 1977 synapsid
CM 26565 (type)
Sphenacodon ferocior Romer 1937 synapsid
 Tetrapoda -
Embolomeri indet.2
1Berman 1977; 2Langston 1952; 3Panchen 1970