Sandy Site, KJ9536 (DMNH 1492) (Cretaceous of the United States)

Also known as Triebold's Sandy Site, KJ9536

Where: Harding County, South Dakota (45.9° N, 103.8° W: paleocoordinates 52.1° N, 77.4° W)

• coordinate stated in text

• small collection-level geographic resolution

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

• -50m to Hell Creek-Fort Union contact datum, -50m to K-T boundary based on calculations in Johnson (2002)

• bed-level stratigraphic resolution

Environment/lithology: fine channel fill; poorly lithified sandstone

Size class: macrofossils

Preservation: adpression

Reposited in the DMNH

Collection methods: quarrying, mechanical,

• Specimens located at Denver Museum of Nature & Science

Primary reference: K. R. Johnson. 2002. Megaflora of the Hell Creek and lower Fort Union Formations in the western Dakotas: Vegetational response to climate change, the Cretaceous-Tertiary boundary event, and rapid marine transgression. The Hell Creek Formation and the Cretaceous-Tertiary boundary in the northern Great Plains: An integrated continental record of the end of the Cretaceous. 361:329-391 [S. Wing/S. Wing/K. Johnson]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 48235: authorized by Kirk Johnson, entered by Kirk Johnson on 15.03.2005, edited by Matthew Carrano and Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Testudines -
Chelydroidea indet.1 Baur 1893 turtle
 Testudines - Trionychidae
Axestemys infernalis1 Joyce et al. 2019 softshell turtle
 Testudines - Adocidae
Adocus lineolatus1 Cope 1874 turtle
 Testudines - Nanhsiungchelyidae
Basilemys sinuosa1 Riggs 1906 turtle
 Testudines - Pantrionychidae
Hutchemys sterea1, "Atoposemys superstes" = Aspideretoides superstes1
Hutchemys sterea1 Hutchison 2009 turtle
"Atoposemys superstes" = Aspideretoides superstes1 Russell 1930 turtle
 Testudines - Macrobaenidae
Judithemys sp.1 Parham and Hutchison 2003 turtle
 Testudinata -
Compsemys victa1 Leidy 1856 turtle
 Testudinata - Baenidae
 Theropoda - Caenagnathidae
cf. Anzu wyliei4, Anzu wyliei n. gen. n. sp.2
cf. Anzu wyliei4 Lamanna et al. 2014 chicken from hell
NSM PV 21086 and 21055
Anzu wyliei n. gen. n. sp.2 Lamanna et al. 2014 chicken from hell
CM 78000, 78001
 Ornithischia -
unclassified
  -
Mollusca indet.2 Linnaeus 1758
small shell debris associated with CM 78001
 Coniferales - Cupressaceae
Taxodium olrikii cypress
HC71
Angiospermae
 Ranunculales - Menispermaceae
Cocculus flabella Wolfe 1966
FU43
 Saxifragales - Cercidiphyllaceae
 Fagales - Fagaceae
Fagaceae "HC100" Dumortier 1829
HC100
 Fagales - Nothofagaceae
  -
"Dicotyledonae "HC236"" = Dicotyledoneae
"Dicotyledonae "HC236"" = Dicotyledoneae
HC236
Leepierceia preartocarpoides
  -
Leepierceia preartocarpoides Johnson 1996
(Brown) Johnson; HC86