Where: South Carolina (33.5° N, 80.5° W: paleocoordinates 33.5° N, 72.5° W)
• coordinate based on political unit
• outcrop-level geographic resolution
When: Pregnall Member (Tupelo Bay Formation), Priabonian (38.0 - 33.9 Ma)
• Powell & Baum used Cross at formation rank, but that usage is not followed in later publications. According to Edwards et al. (1997), the Cross Member of the Santee Limestone is dated as both late middle Eocene and late Eocene, representing calcareous nannofossil Zones NP 17 and NP 18. Geisler et al. (2005) re-assessed the stratigraphy and named the Tupelo Bay Formation to include the type Cross Member/Formation and coarser-grained units, which belong to the earliest Priabonian (NP18) Pregnall Member. It is not clear which unit is exposed at the Santee Quarry, but the invertebrate fauna is extremely similar to the Pregnall Member at the Giant Portland Quarry.
• group of beds-level stratigraphic resolution
Environment/lithology: open shallow subtidal; lithified, shelly/skeletal packstone
Size class: macrofossils
Primary reference: R. J. Powell and G. R. Baum. 1982. Eocene biostratigraphy of South Carolina and its relationship to Gulf Coastal Plain zonations and global changes of coastal onlap. Geological Society of America Bulletin 93:1099-1108 [A. Miller/K. Layou]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 5363: authorized by Arnold Miller, entered by Karen Layou on 27.09.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
| |
Anthozoa | |
Endopachys sp. Lonsdale 1845 stony coral | |
Flabellum sp. Lesson 1831 stony coral | |
Rhynchonellata | |
Terebratulina spp. d'Orbigny 1847 | |
Bivalvia | |
Nucula sp. Lamarck 1799 nut clam | |
Gigantostrea trigonalis Conrad 1854 oyster | |
Cubitostrea sp. Sacco 1897 oyster
Ostrea sp. Linnaeus 1758 oyster | |
Chlamys spp. Röding 1798 scallop
Chlamys cawcawensis scallop
Chlamys cookei Kellum 1926 scallop
Placopecten ? spp. Verrill 1897 scallop | |
Glycymeris ? staminea Conrad 1833 clam | |
Venericardia spp. Lamarck 1801 clam | |
Bathytormus cf. flexurus, "Crassatella alta" = Crassatella uvasana
"Crassatella alta" = Crassatella uvasana Conrad 1855 clam | |
Panopea sp. Menard 1807 clam | |
Cardiidae indet. Lamarck 1809 cockle | |
Tellina sp. Linnaeus 1758 tellin clam | |
"Callista neusensis" = Meretrix neusensis
"Callista neusensis" = Meretrix neusensis Harris 1919 venus clam | |
"Lucina cf. pandata" = Eomiltha pandata
| |
Gastropoda | |
Retusa sp. Brown 1827 snail | |
Conus sp. Linnaeus 1758 cone shell | |
Cypraea sp. Linnaeus 1758 cowry | |
Turritella spp. Lamarck 1799 turret shell | |
Cephalopoda | |
Eutrephoceras carolinensis Kellum 1926 nautiloid | |
Aturia sp. Bronn 1838 nautiloid | |
Echinoidea | |
Cidaris pratti Clark and Twitchell 1915 pencil urchin | |
Protoscutella plana Conrad 1865 sand dollar
Periarchus lyelli Conrad 1834 sand dollar |