KU-TX-18, Bone Canyon, Guadalupe Mountains (Permian of the United States)

Where: Texas (31.9° N, 104.9° W: paleocoordinates 3.1° N, 33.8° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Bone Spring Formation, Kungurian (279.3 - 272.3 Ma)

• bed-level stratigraphic resolution

Environment/lithology: basinal (); lithified, black lime mudstone

• Limy mud deposited in a deep stagnant basin

Size class: macrofossils

Collected by F.R. West

Primary reference: J. Chorn. 1978. Helicoprion (Elasmobranchii, Edestidae) from the Bone Spring Formation (Lower Permian) of west Texas. University of Kansas Paleontological Contributions 89:1-4 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90276: authorized by Matthew Clapham, entered by Matthew Clapham on 15.07.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Chondrichthyes
 Eugeneodontiformes - Helicoprionidae
Helicoprion davisii
Helicoprion davisii Woodward 1886 chimaera