Where: St Marys County, Maryland (38.2° N, 76.4° W: paleocoordinates 38.3° N, 74.7° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Windmill Point Member (St Marys Formation), Late/Upper Miocene (11.6 - 5.3 Ma)
• Unit A in Ward 1992 (Fig. 17), ~0.3 m of sand. Collection from Windmill Point of St Marys Fm, at the base of the section, and underlies units B-D of the Windmill Point Mbr, St Marys Fm.
• bed-level stratigraphic resolution
Environment/lithology: coastal; unlithified, shelly/skeletal, gray, green, silty sandstone
Size class: macrofossils
Reposited in the USNM
• Most material appears to be reposited in USNM and USGS collections
Primary reference: L. W. Ward. 1992. Molluscan biostratigraphy of the Miocene Middle Atlantic Coastal Plain of North America. Virginia Museum of Natural History 2 [A. Miller/A. Hendy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 59304: authorized by Austin Hendy, entered by Austin Hendy on 25.03.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Bivalvia | |
Stewartia anodonta Say 1824 clam | |
| |
Florimetis biplicata Conrad 1834 tellin clam | |
Dosinia acetabulum, Mercenaria tetrica, "Lirophora alveata" = Lirophora (Lirophora) alveata, "Clementia inoceriformis" = Clementia (Clementia) inoceriformis
Mercenaria tetrica Conrad 1838 quahog
"Lirophora alveata" = Lirophora (Lirophora) alveata Conrad 1831 venus clam
"Clementia inoceriformis" = Clementia (Clementia) inoceriformis Wagner 1839 venus clam | |
Leptomactra delumbis Conrad 1832 clam
Mactrodesma subponderosa d'Orbigny 1852 clam | |
Glossus santamaria Ward 1992 clam | |
Panopea goldfussii Wagner 1839 clam | |
Astarte perplana Conrad 1840 clam | |
Chesapecten santamaria Tucker 1934 scallop | |
Isognomon (Hippochaeta) sp. oyster | |
Crassostrea sp. Sacco 1897 oyster | |
Dallarca idonea, "Rasia andrewsi" = Anadara (Rasia) andrewsi
Dallarca idonea Conrad 1832 clam
"Rasia andrewsi" = Anadara (Rasia) andrewsi Ward 1992 ark | |
Gastropoda | |
Urosalpinx subrusticus d'Orbigny 1852 murex snail | |
Busycon fusiforme whelk | |
Nassarius (Tritiaria) peralta Conrad 1868 snail
Bulliopsis quadrata Conrad 1830 snail
Bulliopsis marylandica Conrad 1862 snail | |
Buccinofusus parilis Conrad 1832 snail | |
Conus deluvianus Green 1830 cone shell | |
"Terebra simplex" = Laevihastula simplex
"Terebra simplex" = Laevihastula simplex Conrad 1830 auger snail | |
"Turritella plebeia" = Mariacolpus plebeia, Turritella subvariabilis
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