South Aiken Site (Eocene of the United States)

Where: Aiken County, South Carolina (33.5° N, 84.7° W: paleocoordinates 33.8° N, 77.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Dry Branch Formation (Barnwell Group), Priabonian (38.0 - 33.9 Ma)

• 2 meters below base of overlying Tobacco Road Fm. Late Eocene age based on invertebrates and calcareous nannofossil biostratigraphy and laser fusion age of tektites in formation

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils

Collection methods: bulk, sieve,

• screen-washed with water in lab and sieved with 0.25 mm screen

Primary reference: D. J. Cicimurri and J. L. Knight. 2019. Late Eocene (Priabonian) elasmobranchs from the Dry Branch Formation (Barnwell Group) of Aiken County, South Carolina, USA. PaleoBios 36(43964):1-31 [P. Holroyd/P. Holroyd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 202014: authorized by Patricia Holroyd, entered by Patricia Holroyd on 17.06.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Chondrichthyes
 Squatiniformes - Squatinidae
Squatina cf. prima
Squatina cf. prima Winkler 1874 angel shark
 Lamniformes - Alopiidae
Alopias sp.
Alopias sp. Rafinesque 1810 thresher shark
 Lamniformes - Carchariidae
cf. Carcharias sp.
cf. Carcharias sp. Rafinesque 1810 sand shark
 Orectolobiformes - Ginglymostomatidae
Ginglymostomatidae indet., Nebrius cf. thielensi
Ginglymostomatidae indet. Gill 1862 nurse shark
 Carcharhiniformes - Carcharhinidae
"Carcharinidae indet." = Carcharhinidae, Isogomphodon aikenensis n. sp., Rhizoprionodon ? ganntourensis, Physogaleus aff. latus
"Carcharinidae indet." = Carcharhinidae Jordan and Evermann 1896 requiem shark
Isogomphodon aikenensis n. sp. Cicimurri and Knight 2019 daggernose shark
Rhizoprionodon ? ganntourensis Arambourg 1952 sharpnose shark
Physogaleus aff. latus requiem shark
 Carcharhiniformes - Scyliorhinidae
"Scylliorhinus sp." = Scyliorhinus, Foumtizia sp., Abdounia enniskilleni, Premontreia cf. gilberti
"Scylliorhinus sp." = Scyliorhinus Blainville 1816 cat shark
Foumtizia sp. Noubhani and Cappetta 1997 cat shark
Abdounia enniskilleni White 1956 cat shark
Premontreia cf. gilberti Casier 1946 cat shark
 Carcharhiniformes - Galeocerdidae
Galeocerdo sp.
Galeocerdo sp. Müller and Henle 1837 tiger shark
 Carcharhiniformes - Hemigaleidae
Hemipristis cf. curvatus
Hemipristis cf. curvatus Dames 1883 ground shark
 Carcharhiniformes - Sphyrnidae
"Negaprion gilmorei" = Sphyrna gilmorei
"Negaprion gilmorei" = Sphyrna gilmorei Leriche 1942 hammerhead shark
 Rajiformes - Rhinobatidae
Rhinobatos sp.
Rhinobatos sp. Link 1790 guitarfish
 Rhinopristiformes - Rhynchobatidae
Rhynchobatus cf. pristinus
Rhynchobatus cf. pristinus Probst 1877 wedgefish
 Hexanchiformes - Hexanchidae
Notorhynchus cf. kempi
Notorhynchus cf. kempi sevengill shark
 Myliobatiformes - Myliobatidae
Rhinoptera sp., Aetomylaeus sp., Pseudaetobatus undulatus
Rhinoptera sp. Cuvier 1829 cownose ray
Aetomylaeus sp. Garman 1908 eagle ray
Pseudaetobatus undulatus Cicimurri and Ebersole 2015 eagle ray
 Myliobatiformes - Dasyatidae
Dasyatis sp., Dasyatis cf. tricuspidatus
Dasyatis sp. Rafinesque 1810 whiptail stingray
Dasyatis cf. tricuspidatus Casier 1946 whiptail stingray