DMNH Loc. 1505 (Jurassic of the United States)

Where: Fremont County, Colorado (38.5° N, 105.4° W: paleocoordinates 33.5° N, 51.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Morrison Formation, Late/Upper Jurassic (163.5 - 145.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: lime mudstone and mudstone

• Collected from a 30 cm planar laminated bed of limestone.

Size class: macrofossils

Preservation: adpression

Reposited in the DMNH

Collection methods: quarrying,

Primary reference: J. D. Pardo, A. K. Huttenlocker, B. J. Small and M. A. Gorman, II. 2010. The cranial morphology of a new genus of lungfish (Osteichthyes: Dipnoi) from the Upper Jurassic Morrison Formation of North America. Journal of Vertebrate Paleontology 30(5):1352-1359 [S. Peters/S. McMullen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 136080: authorized by Shanan Peters, entered by Sharon McMullen on 16.11.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Dipnoi - Ceratodontidae
"Ptychoceratodus guentheri n. gen. n. sp." = Ceratodus guentheri
"Ptychoceratodus guentheri n. gen. n. sp." = Ceratodus guentheri Marsh 1878 lungfish