Where: Calvert County, Maryland (38.5° N, 76.5° W: paleocoordinates 38.7° N, 73.2° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Plum Point Member (Calvert Formation), Langhian (16.0 - 13.8 Ma)
• three feet below top of Zone 13; 14.8-14.9 AEO date
• bed-level stratigraphic resolution
Environment/lithology: estuary or bay; sandy claystone
Size class: macrofossils
Preservation: original phosphate
Reposited in the USNM
Collection methods: surface (in situ),
Primary reference: E. C. Case. 1904. Systematic Paleontology: Mammalia. Maryland Geological Survey Miocene: Text 1-58 [M. Uhen/M. Uhen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 45502: authorized by Mark Uhen, entered by Mark Uhen on 26.10.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Globothalamea | |
Florilus chesapeakensis2 Gibson 1983 | |
Gastropoda | |
Ecphora (Ecphora) turneri7 Petuch 1992 murex snail Petuch states that this species is from Plum Point Marl, Zone 14, but Plum Point only extends to Zone 13
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Mammalia | |
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"Priscodelphinus crassangulum n. sp." = Zarhachis crassangulum, "Schizodelphis crassangulum" = Zarhachis crassangulum8
"Priscodelphinus crassangulum n. sp." = Zarhachis crassangulum Case 1904 toothed whale
"Schizodelphis crassangulum" = Zarhachis crassangulum8 Case 1904 toothed whale True (1908, p. 456) states that one piece of the type specimen of Priscodelphinus crassangulum is actually the basisphenoid of a species of Mesoplodon
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Hadrodelphis calvertense n. gen. n. sp.5, "Lophocetus pappus" = Liolithax pappus3, Pelocetus calvertensis n. gen. n. sp.4, Diorocetus hiatus6
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"Gomphotherium calvertensis n. sp." = Gomphotherium obscurum1
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