Scientists Cliffs, Zone 14 (Miocene of the United States)

Where: Calvert County, Maryland (38.5° N, 76.5° W: paleocoordinates 38.7° N, 73.6° W)

• coordinate estimated from map

When: Calvert Beach Member (Calvert Formation), Serravallian (13.8 - 11.6 Ma)

• Zones 14-16A are regarded as Serravallian in age.

Environment/lithology: foreshore; brown, yellow, sandy claystone

• relatively non-diverse mollusc assemblage, open-marine, shallow shelf

Size class: macrofossils

Primary reference: E. J. Petuch. 1992. New ecphoras (Gastropoda: Thaididae: Ecphorinae) from the Calvert Formation of Maryland (Langhian Miocene). The Nautilus 106(2):68-71 [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 71533: authorized by Mark Uhen, entered by Mark Uhen on 27.04.2007, edited by Evangelos Vlachos

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Cetacea - Eurhinodelphinidae
Eurhinodelphis sp.1
Eurhinodelphis sp.1 Van Beneden and Gervais 1880 toothed whale
Reptilia
 Testudines - Dermochelyidae
Psephophorus polygonus2
Psephophorus polygonus2 von Meyer 1847 leatherback
Left humerus (CMM-V-12), collected by Wally Ashby
Gastropoda
 Neogastropoda - Muricidae
Ecphora (Ecphora) chesapeakensis n. sp.
Ecphora (Ecphora) chesapeakensis n. sp. Petuch 1992 murex snail
1Uhen 2007; 2Weems 2023