Chesapeake Bay (Choptank) (Miocene of the United States)

Where: Calvert County, Maryland (38.4° N, 76.5° W: paleocoordinates 38.6° N, 73.2° W)

• coordinate based on political unit

When: Choptank Formation (Chesapeake Group), Barstovian (16.3 - 12.5 Ma)

Environment/lithology: terrestrial

Primary reference: R. H. Tedford and M. E. Hunter. 1984. Miocene marine-nonmarine correlations, Atlantic and Gulf Coastal Plains, North America. Palaeography, Palaeoclimatology, Palaeoecology 47:129-151 [J. Alroy/J. Alroy/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 18519: authorized by John Alroy, entered by John Alroy on 26.03.1995, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• includes beds 17 to 19: Wright and Eshelman 1987
Show authors, comments, and common names
Mammalia
 Proboscidea - Mammutidae
Gomphotherium cf. obscurum1
Gomphotherium cf. obscurum1 Leidy 1869 mastodon
 Carnivora - Canidae
Cynarctus wangi n. sp.2
Cynarctus wangi n. sp.2 Jasinski and Wallace 2015 bone-crushing dog
USNM 534040
 Artiodactyla - Tayassuidae
"Prosthennops niobrarensis" = Colbertchoerus niobrarensis
"Prosthennops niobrarensis" = Colbertchoerus niobrarensis Colbert 1935 peccary
Drum Cliff, bed 17; "Hesperhys" of Tedford and Hunter 1984
1Alroy 2002; 2Jasinski and Wallace 2015