Where: Prince George's County, Maryland (39.1° N, 76.9° W: paleocoordinates 32.9° N, 31.3° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Arundel Clay Formation (Potomac Group), Late/Upper Aptian (122.5 - 112.0 Ma)
• Palynology of the Potomac Group suggests a late Aptian age for the Arundel facies (Brenner, 1963; Doyle and Robbins, 1977; Hochuli et al., 2006; Doyle, 2012)
• bed-level stratigraphic resolution
Environment/lithology: fluvial-lacustrine; blue, carbonaceous claystone
Size class: macrofossils
Collected by A. Bibbins, Inglehart in 1894; reposited in the USNM
Primary reference: A. Bibbins. 1895. Notes on the paleontology of the Potomac Formation. The Johns Hopkins University Circulars 15(121):17-20 [M. Carrano/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 52677: authorized by Matthew Carrano, entered by Matthew Carrano on 16.08.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
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"Ornithomimus affinis" = Coelosaurus affinis1
"Ornithomimus affinis" = Coelosaurus affinis1 Gilmore 1920 ornithomimosaur vertebra, GC 3101 = USNM V8454
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