Where: Baylor County, Texas (33.7° N, 99.1° W: paleocoordinates 2.0° N, 28.8° W)

• coordinate based on nearby landmark

When: Maybelle Aa2 Limestone Member (Lueders Formation), Leonardian (286.0 - 273.0 Ma)

• "Lueders Formation, Maybelle Aa2 Limestone Member, Lower Permian (Leonardian)"

Environment/lithology: marine; limestone

Size class: macrofossils

Collected by Ted Emsoff in 1973; reposited in the AMNH

• "In 1973 Ted Emsoff, a student at Midwestern University, discovered a large (150 mm. long), massively ossified neurocranium, apparently palaeoniscoid, and an associated median rostral element, in the Lower Permian Lueders Formation near the Lake Kemp Dam in Baylor County, Texas. This unique specimen was presented by Emsoff and Walter Dalquest to the American Museum of Natural History."

Primary reference: B. Schaeffer and W. W. Dalquest. 1978. A palaeonisciform braincase from the Permian of Texas, with comments on cranial fissures and the posterior myodome. American Museum Novitates 2658:1-15 [G. Lloyd/G. Lloyd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 125710: authorized by Graeme Lloyd, entered by Graeme Lloyd on 16.03.2012

Creative Commons license: CC BY (attribution)