Rainbow Park microsite (DNM 96) (Jurassic of the United States)

Also known as UT-26

Where: Uintah County, Utah (40.5° N, 109.2° W: paleocoordinates 36.0° N, 54.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Brushy Basin Member (Morrison Formation), Kimmeridgian (157.3 - 152.1 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithified, bentonitic, gray, argillaceous, cherty/siliceous mudstone and unlithified, carbonaceous mudstone

• Upper horizon was deposited in quiet water conditions while the lower horizon was deposited in exposed conditions
• Lower horizon: "gray bentonitic mudstone/siltstone with small chert clasts and clay pebbles"

•Upper horizon: "gray mudstone/siltstone, lamination present with small lenses of slightly coarser texture. These lenses are rich in organic matter and contain small bones oriented with the long axis parallel to bedding"

Size classes: macrofossils, mesofossils

Collected by R. West in 1984

Collection methods: quarrying, surface (float), surface (in situ), mechanical, sieve,

Primary reference: D. J. Chure and G. F. Engelmann. 1989. The fauna of the Morrison Formation in Dinosaur National Monument. In J. J. Flynn (ed.), Mesozoic/Cenozoic Vertebrate Paleontology: Classic Localities, Contemporary Approaches: Field Trip Guide Book T322. American Geophysical Union, Washington, DC 8-14 [M. Carrano/K. Maguire/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 57913: authorized by Matthew Carrano, entered by Kaitlin Maguire on 06.01.2006, edited by Matthew Carrano and Jonathan Tennant

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Mollusca indet. Linnaeus 1758
Gnathostomata
  -
Chondrichthyes indet. Huxley 1880 cartilaginous fish
Actinopterygii indet.3 ray-finned fish
Osteichthyes
 Salientia -
 Salientia - Rhinophrynidae
Rhadinosteus parvus n. gen. n. sp.5
Rhadinosteus parvus n. gen. n. sp.5 Henrici 1998 burrowing toad
 Salientia - Discoglossidae
? Discoglossidae indet.3 G√ľnther 1859 painted frog
Enneabatrachus sp.3 Evans and Milner 1993 painted frog
 Caudata -
Caudata indet. salamander
 Caudata - Urodela
Iridotriton hechti n. gen. n. sp.2
Iridotriton hechti n. gen. n. sp.2 Evans et al. 2005 salamander
DINO 16453a, b
 Amniota -
Amniota indet. Haeckel 1866 amniote
Reptilia
 Testudines - Pleurosternidae
Glyptops plicatulus Cope 1877 turtle
 Saurischia -
 Saurischia - Camarasauridae
Camarasaurus sp. Cope 1877 camarasaurid
 Theropoda -
 Avetheropoda - Allosauridae
Allosaurus sp. Marsh 1877 allosaurid
 Ornithischia - Stegosauridae
Stegosaurus sp. Marsh 1877 ornithischian
 Ornithischia -
? Fabrosaurus sp. Ginsburg 1964 Fabre's lizard
 Neornithischia - Dryosauridae
Dryosaurus sp. Marsh 1894 bird foot dinosaur
 Neornithischia -
Camptosaurus sp. Marsh 1885 bird foot dinosaur
 Loricata - Goniopholididae
Eutretauranosuchus sp.3 Mook 1967 crocodilian
Goniopholis sp.3 Owen 1842 crocodilian
 Loricata -
Crocodylia indet. crocodilian
 Squamata -
 Squamata - Paramacellodidae
Paramacellodus cf. oweni1 Hoffstetter 1967 lizard
DINO 13861 Partial postcranial skeleton
 Rhynchocephalia - Sphenodontidae
Theretairus sp.3 Simpson 1926 rhynchocephalian
 Rhynchocephalia -
Opisthias sp. Gilmore 1909 rhynchocephalian
Mammalia
  -
Mammalia indet. Linnaeus 1758 mammal
 Eutriconodonta - Triconodontidae
Priacodon sp.3 Marsh 1887 mammal
Triconolestes sp.3 Engelmann and Callison 1998 mammal
 Symmetrodonta -
Symmetrodonta indet.4 symmetrodont
 Theriiformes - Dryolestidae
Dryolestes sp.3 Marsh 1878 mammal
 Theriiformes - Paurodontidae
Euthlastus sp.3 Simpson 1927 mammal
 Theriiformes -
Theria indet. Parker and Haswell 1897 mammal
 Allotheria -
Multituberculata indet. Cope 1884 multituberculate
Multituberculata indet.3 Cope 1884 multituberculate