Also known as Swamp Poodle, Coffin's Old Engine Bank, Singewald no. 243, Muirkirk
Where: Prince George's County, Maryland (39.0° N, 76.9° W: paleocoordinates 32.9° N, 31.3° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Arundel Clay Formation (Potomac Group), Late/Upper Aptian (122.5 - 112.0 Ma)
• Originall described as "Potomac Formation" and "Upper Jurassic."
•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)
• group of beds-level stratigraphic resolution
Environment/lithology: mire or swamp; blue, carbonaceous claystone
Size class: macrofossils
Collected by J. B. Hatcher, A. Bibbins in 1887-1888, 1891, 1894–1896; reposited in the USNM
Collection methods: quarrying, mechanical,
Primary reference: O. C. Marsh. 1888. Notice of a new genus of Sauropoda and other new dinosaurs from the Potomac Formation. American Journal of Science 35:89-94 [M. Carrano/M. Carrano/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 28432: authorized by Matthew Carrano, entered by Matthew Carrano on 13.02.2003, edited by Roger Benson
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Glyptops caelatus n. sp.2
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Priconodon crassus n. gen. n. sp.
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"Ornithomimus affinis n. sp." = Coelosaurus affinis1, ? Coelurus gracilis n. sp., Allosaurus medius n. sp.
"Ornithomimus affinis n. sp." = Coelosaurus affinis1 Gilmore 1920 ornithomimosaur USNM 5453, 5652, 5684, 5703-04, 6107-08; GC 3121
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Pleurocoelus sp.3 Marsh 1888 sauropod USNM PAL 357053, 357056, 357061, 357064, 357066, 357068, 357071-72, 357080, 357087
Pleurocoelus nanus n. gen. n. sp. Marsh 1888 sauropod USNM 4968–70, 3372, 2263, 2267, 2667, 4968–70, 5372, 5452, 5639, 5650, 5656-57, 5660, 5667–69, 5673, 5677-78, 5691-92, 5700, 8442, 8457–70, 8472, 8494, 8510, PAL 357097
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