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

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