Mayer Farm (Permian of the United States)

Also known as Location 1, near Humboldt (DMNH loc. 2076, UNSM loc. Rh 103)

Where: Richardson County, Nebraska (40.1° N, 95.9° W: paleocoordinates 0.5° N, 26.3° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Eskridge Formation (Council Grove Group), Asselian (298.9 - 295.5 Ma)

• Within the lower P2 paleosol. This unit lies well above the first occurrence of the Permian index fossil Streptognathodus isolatus in the Bennet Shale Member of the Red Eagle Limestone but is below the first occurrence of the Sakmarian indicator species Sweetognathus merrilli in the Eiss Limestone member of the Bader Limestone, constraining the age to the Asselian (298.9–295.0 Ma).

• bed-level stratigraphic resolution

Environment/lithology: pond; lithified, gray, green siltstone

• Ephemeral pond setting
• Greyish-green vertisol with moderate pedogenesis

Size class: macrofossils

Reposited in the DMNH, UNSM

Primary reference: A. K. Huttenlocker, J. D. Pardo, and B. J. Small. 2005. An earliest Permian nonmarine vertebrate assemblage from the Eskridge Formation, Nebraska. New Mexico Museum of Natural History and Science, Bulletin 30:133-143 [R. Butler/E. Dunne]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 179620: authorized by Richard Butler, entered by Emma Dunne on 22.06.2016, edited by Graeme Lloyd

Creative Commons license: CC BY (attribution)

Taxonomic list

Amphibia
 Microsauria -
 Temnospondyli -
 Temnospondyli - Eobrachyopidae
Acroplous vorax Hotton 1959 tetrapod
 Temnospondyli - Amphibamidae
Amphibamidae sp. Moodie 1912 tetrapod
Plemmyradytes shintoni n. gen. n. sp.2 Huttenlocker et al. 2007 tetrapod
DMNH 349903 (Holotype: partial skull and mandible), DMNH 39024-39027, 43145, 45232, 45809, 46652, 48295, 48296, 50138-40, 50167, and 50346.
Osteichthyes
 Recumbirostra - Molgophidae
"Brachydectes newberryi" = Brachydectes newberryi, "Brachydectes elongatus" = Brachydectes newberryi
"Brachydectes newberryi" = Brachydectes newberryi Cope 1868 amniote
"Brachydectes elongatus" = Brachydectes newberryi Cope 1868 amniote
 Recumbirostra -
Huskerpeton englehorni n. gen. n. sp.1
Huskerpeton englehorni n. gen. n. sp.1 Huttenlocker et al. 2013 amniote
UNSM 32144
 Cotylosauria - Diadectidae
Diadectidae indet. Cope 1880 tetrapod
 Dipnoi - Gnathorhizidae
Gnathorhiza serrata Cope 1883 lungfish
Gnathorhiza dikeloda Olson 1951 lungfish
 Ctenodontiformes - Ctenodontidae
Monongahela sp. Lund 1970 lungfish