Where: Calvert County, Maryland (38.6° N, 76.5° W: paleocoordinates 38.9° N, 72.6° W)
• coordinate estimated from map
When: Plum Point Member (Calvert Formation), Burdigalian (20.4 - 16.0 Ma)
• late early Barstovian, Zone 3-6: changed to 4-6 because Plum Point Member doesn't include zone 3
• group of beds-level stratigraphic resolution
Environment/lithology: offshore; sandy claystone
Size class: macrofossils
Preservation: original phosphate
Primary reference: A. C. Myrick. 1979. Variation, taphonomy, and adaptation of the Rhabdosteidae (=Eurhinodelphidae) (Odontoceti, Mammalia) from the Calvert Formation of Maryland and Virginia. University of California, Los Angeles 1-411 [M. Uhen/M. Uhen]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 57786: authorized by Mark Uhen, entered by Mark Uhen on 02.01.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
"Rhabdosteus hruschkai" = Schizodelphis barnesi
"Rhabdosteus hruschkai" = Schizodelphis barnesi Myrick 1979 toothed whale | |
Chondrichthyes | |
Oxyrhina cuspidata mackerel shark | |
Odontaspis macrota Agassiz 1838 sand tiger shark | |
Hemipristis serra Agassiz 1835 ground shark | |
Carcharhinus egertoni, "Galeocerdo contortus" = Physogaleus contortus
Carcharhinus egertoni Agassiz 1843 requiem shark
"Galeocerdo contortus" = Physogaleus contortus Gibbes 1847 requiem shark | |
Galeocerdo aduncus Agassiz 1835 tiger shark |