Eureka Quarry anthills (Cretaceous of the United States)

Also known as SDSM V638, V639, V640, V644, V645, V646

Where: Harding County, South Dakota (45.6° N, 103.5° W: paleocoordinates 51.8° N, 77.2° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Hell Creek Formation, Lancian (70.6 - 66.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: coarse channel fill; sandstone

Size class: mesofossils

Reposited in the SDSM

Collection methods: bulk, surface (float),

Primary reference: M. T. Greenwald. 1971. The Lower Vertebrates of the Hell Creek Formation, Harding County, South Dakota 1-77 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 192251: authorized by Patricia Holroyd, entered by Patricia Holroyd on 18.03.2018, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Hybodontiformes - Lonchidiidae
Lonchidion selachos Estes 1964 elasmobranch
SDSM 64330, 64331
 Myliobatiformes - Dasyatidae
Myledaphus bipartitus Cope 1876 whiptail stingray
SDSM 64283, 64312, 64321, 64342, 64354, 64369
Actinopteri
 Albuliformes - Albulidae
Coriops amnicolus Estes 1969 bonefish
SDSM 64290
 Acanthomorphata - Sciaenidae
Platacodon nanus Marsh 1889
SDSM 64315
 Amiiformes - Amiidae
Amia sp. Linnaeus 1766 bowfin
SDSM 64289, 64333, 64344, 64362
Amia fragosa Jordan 1927 bowfin
SDSM 64313, 64332, 64343, 64355, 64361
 Lepisosteiformes - Lepisosteidae
Lepisosteus occidentalis Leidy 1856 gar
SDSM 64291, 64344–64346, 64363
Osteichthyes
 Proteida - Batrachosauroididae
Opisthotriton kayi Auffenberg 1961 tetrapod
SDSM 64294, 64318, 64336, 64347
 Salientia -
Anura indet. Fischer von Waldheim 1813 frog
SDSM 64316
 Caudata - Urodela
Scapherpeton tectum Cope 1876 salamander
SDSM 64293, 64317
Reptilia
 Saurischia -
Theropoda indet. theropod
SDSM 64369, 64370
 Avetheropoda - Caenagnathidae
cf. Chirostenotes sp. Gilmore 1924 coelurosaur
SDSM 64341
 Avetheropoda - Troodontidae
? Troodon sp. Leidy 1856 coelurosaur
SDSM 64306
Saurornithoides cf. mongoliensis Osborn 1924 coelurosaur
SDSM 64324
 Avetheropoda -
Paronychodon lacustris Cope 1876 coelurosaur
SDSM 64325
 Avetheropoda - Tyrannosauridae
cf. Tyrannosaurus sp. Osborn 1905 tyrant lizard
SDSM 64351
 Neornithischia - Pachycephalosauridae
? Pachycephalosauridae indet. Sternberg 1945 ornithischian
SDSM 64302
 Neornithischia - Ceratopsidae
Triceratops sp. Marsh 1889 ceratopsid
SDSM 64304, 64328, 64266
 Neornithischia - Thescelosauridae
Thescelosaurus neglectus Gilmore 1913 ornithischian
SDSM 64301, 64327, 64352
 Neornithischia - Hadrosauridae
"Anatosaurus sp." = Edmontosaurus
"Anatosaurus sp." = Edmontosaurus Lambe 1917 hadrosaurine
SDSM 64303, 63647
 Crocodylia -
"Leidyosuchus cf. sternbergi" = Borealosuchus sternbergii
"Leidyosuchus cf. sternbergi" = Borealosuchus sternbergii Gilmore 1910 crocodilian
SDSM 6297, 64321, 64339, 64349, 64358, 64365
 Crocodylia - Alligatoridae
Brachychampsa cf. montana Gilmore 1911 crocodilian
SDSM 64298, 64322, 64240, 64350, 64359
 Squamata -
? Parasaniwa wyomingensis Gilmore 1928 lizard
SDSM 6426
 Squamata - Chamopsiidae
Chamops segnis Marsh 1892 lizard
SDSM 64223, 64339
 Choristodera -
Champsosaurus sp. Cope 1876 choristodere
SDSM 64295, 64319, 64338, 64348, 64357, 64364