H34D site (IMNH 2167) (Cretaceous to of the United States)

Also known as Highway 34 Dinosaur locality; Tincup Canyon

Where: Caribou County, Idaho (43.2° N, 111.1° W: paleocoordinates 43.5° N, 70.6° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Wayan Formation, Late/Upper Albian to Late/Upper Albian (105.3 - 93.5 Ma)

• Upper part of Wayan Fm

•Dating of detrital zircons from 120 m above the base of the formation and from the top of the formation has yielded a maximum age of 101.8 Ma (latest Albian) and a minimum age of 95.5 Ma (early Cenomanian; Krumenacker, 2010)

• bed-level stratigraphic resolution

Environment/lithology: crevasse splay; fine, gray, silty sandstone

• Semi-arid floodplain environment; channel lag or crevasse splay
• Gray (Munsell 6/1), fine, quartz-dominated sandstone (moderately poorly sorted with grains ranging from very fine lower to fine upper) with a silt and clay matrix

•"The fossiliferous horizon consists of a petroliferous fine-grained gray calcite-cemented sandstone with some caliche clasts. The fossil-bearing unit coarsens upward transitioning into sandstone with caliche and gypsum nodules."

Size classes: macrofossils, mesofossils

Collected by Montana State University in 2003–2004, 2007

Collection methods: surface (in situ),

• Idaho Museum of Natural History collection

Primary reference: L. J. Krumenacker, D. J. Simon, G. Scofield and D. J. Varricchio. 2017. Theropod dinosaurs from the Albian–Cenomanian Wayan Formation of eastern Idaho. Historical Biology 29:170-186 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 201911: authorized by Philip Mannion, entered by Philip Mannion on 10.06.2019, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

 Allotheria -
Multituberculata indet. Cope 1884 multituberculate
IMNH 50887
 Multituberculata -
Cimolodonta indet. McKenna 1975 multituberculate
IMNH 50885 and 50886
 Multituberculata - Cimolodontidae
Cimolodon akersteni n. sp. Weaver et al. 2019 multituberculate
IMNH 50879 - type
 Multituberculata -
cf. Paracimexomys perplexus Eaton and Cifelli 2001 multituberculate
IMNH 50884
cf. Cedaromys sp. Eaton and Cifelli 2001 multituberculate
IMNH 50880-50882
Bryceomys intermedius Eaton and Cifelli 2001 multituberculate
IMNH 50883
 Ornithischia - Nodosauridae
Nodosauridae indet. Marsh 1890 ankylosaur
Partial skeleton
 Saurischia -
Coelurosauria indet. Huene 1914 coelurosaur
IMNH 2167/50102, "morphotype 6"
Tyrannosauroidea "indet. 2" Walker 1964 coelurosaur
IMNH 2167/50108, "morphotype 2"
Tyrannosauroidea "indet. 3" Walker 1964 coelurosaur
IMNH 2167/50105–50107, "morphotype 3"
 Saurischia - Dromaeosauridae
Dromaeosauridae "indet. 4" Colbert and Russell 1969 maniraptoran
IMNH 2167/50104, "morphotype 4"