Scientists Cliffs, Zone 12-13 (Miocene of the United States)
Where: Calvert County, Maryland (38.5° N, 76.5° W: paleocoordinates 38.7° N, 73.2° W)
• coordinate estimated from map
When: Plum Point Member (Calvert Formation), Langhian (16.0 - 13.8 Ma)
Environment/lithology: estuary or bay; sandy claystone
• sparse molluscs, low in diversity; subtropical environment in embayment and dry onshore; area not far from shore, bay, short-term eustatic transgression events, long-term regression trend
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 71615: authorized by Mark Uhen, entered by Mark Uhen on 01.05.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Mammalia | |
"Leptophoca lenis" = Leptophoca proxima2
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"Rhabdosteus longirostris" = Eurhinodelphis longirostris2, "Eurhinodelphis bossi" = Xiphiacetus bossi2
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| Gastropoda | |
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Ecphora (Trisecphora) scientistensis Petuch 1992 murex snail | |