Where: Calvert County, Maryland (38.5° N, 76.5° W: paleocoordinates 38.7° N, 73.7° 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.
• group of beds-level stratigraphic resolution
Environment/lithology: coastal; blue claystone
Size class: macrofossils
Preservation: original phosphate
Reposited in the USNM
Collection methods: surface (in situ),
Primary reference: G. B. Shattuck. 1904. Geological and paleontological relations, with a review of earlier investigations. Maryland Geological Survey Miocene Text xxxiii-clv [M. Uhen/M. Uhen]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 70829: authorized by Mark Uhen, entered by Mark Uhen on 09.04.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Bivalvia | |
Pandora sp. Bruguière 1797 clam | |
Nucula sp. Lamarck 1799 nut clam |