Hay Creek N4, UCMP loc. V.86074 (Cretaceous of the United States)

Also known as UCMP V-86074

Where: Slope County County, North Dakota (46.4° N, 103.5° W: paleocoordinates 52.5° N, 76.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

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

Environment/lithology: terrestrial; ferruginous, nodular sandstone

• LIGHT-COLORED CHANNEL SS WITH DARK INDURATED PLATY BEDS AND IRONSTONE NODUL

Size class: macrofossils

Reposited in the UCMP

Collection methods: surface (float), surface (in situ),

Primary reference: P. A. Holroyd and J. H. Hutchison. 2002. Patterns of geographic variation in latest Cretaceous vertebrates: evidence from the turtle component. Geological Society of America Special Paper 361:177-190 [R. Benson/R. Benson]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 137713: authorized by Roger Benson, entered by Roger Benson on 18.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Actinopteri
 Amiiformes - Amiidae
Amiidae indet. Huxley 1861 bowfin
UCMP 172239
 Lepisosteiformes - Lepisosteidae
Lepisosteidae indet. Cuvier 1825 gar
UCMP 172240
Reptilia
 Testudines - Trionychidae
Trionychidae indet. Gray 1825 softshell turtle
UCMP 172235–172236, 172247–172248
 Testudines - Baenidae
Baenidae indet. turtle
UCMP 172238, 172245
 Testudines - Panchelydridae
Chelydridae indet. turtle
UCMP 172246
Protochelydra sp. Erickson 1973 turtle
UCMP 172237
 Saurischia -
Saurischia indet. Seeley 1888 saurischian
UCMP 172243
 Neornithischia - Ceratopsidae
Ceratopsidae indet. Marsh 1888 ceratopsid
UCMP 172232
 Neornithischia - Hadrosauridae
Hadrosauridae indet. Cope 1869 hadrosaurid
UCMP 172230–172231, 172244
 Crocodylia -
Crocodylia indet. Owen 1842 crocodilian
UCMP 172233, 172241
 Choristodera -
Champsosaurus sp. Cope 1876 choristodere
UCMP 172234, 172242, 177964