Dana Quarry: Late/Upper Oxfordian - Early/Lower Kimmeridgian, Wyoming
collected by H. Galiano 1991, 2006-

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Pteridophyta indet. Haeckel 1875
"ferns"
Polypodiopsida - Equisetales
Equisetales indet. Dumortier 1829
"horsetails"
unclassified
Cycadophyta indet. Bessey 1907
"cycads"
Coniferophyta indet.
"several families of conifers"
Reptilia
Testudinata indet. (Oppel 1811)
1 individual
Reptilia - Stegosauridae
Hesperosaurus mjosi Carpenter et al. 2001
1 individual
Reptilia
Camptosaurus sp. Marsh 1885
Othnielosaurus consors (Marsh 1894)
synonym of Nanosaurus agilis
Reptilia - Compsognathidae
Ornitholestes sp. Osborn 1903
"n. sp."
Reptilia
cf. Coelurus sp. Marsh 1879
Reptilia - Megalosauridae
Torvosaurus sp. Galton and Jensen 1979
Reptilia
Allosaurus jimmadsoni (Chure et al. 2006)
1 individual
original and current combination Allosaurus jimmadseni
Ceratosaurus sp. Marsh 1884
Reptilia - Brachiosauridae
Brachiosaurus sp. Riggs 1903
Reptilia - Camarasauridae
Camarasaurus sp. Cope 1877
Reptilia
Amphicoelias brontodiplodocus n. sp. Galiano and Albersdörfer 2010
8 individuals
DQ-TY, DQ-BD, DQ-SB, DQ-PC, DQ-EN (9 measurements)
? Apatosaurus sp. Marsh 1877
Hanson and Makovicky 2013
? Diplodocus sp. Marsh 1878
Hanson and Makovicky 2013
? Barosaurus sp. Marsh 1890
Hanson and Makovicky 2013
see common names

Geography
Country:United States State/province:Wyoming County:Washakie
Coordinates: 44.1° North, 107.5° West (view map)
Paleocoordinates:39.0° North, 51.9° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Jurassic Epoch:Late/Upper Jurassic
10 m.y. bin:Jurassic 5
Key time interval:Late/Upper Oxfordian - Early/Lower Kimmeridgian
Age range of interval:161.20000 - 150.80000 m.y. ago
Stratigraphy
Formation:Morrison
Stratigraphic resolution:bed
Stratigraphy comments: lower part of formation, 6-9 m above contact w/underlying Sundance Fm.
Lithology and environment
Primary lithology: sandy mudstone
Includes fossils?Y
Environment:fine channel fill
Geology comments: seasonal body of water, possibly an oxbow lake
Taphonomy
Modes of preservation:body
Degree of concentration:concentrated
Size of fossils:macrofossils,mesofossils
Preservation of anatomical detail:excellent
Abundance in sediment:common
Spatial resolution:parautochthonous
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:selective quarrying,surface (in situ),mechanical,field collection
Reason for describing collection:taxonomic analysis
Collectors:H. Galiano Collection dates:1991, 2006-present
Collection method comments: discovered ca. 1991 but not excavated until 2006-
Metadata
Also known as:DQ
Database number:126540
Authorizer:M. Carrano, P. Mannion Enterer:M. Carrano, J. Tennant
Modifier:M. Carrano Research group:vertebrate
Created:2012-04-06 06:30:54 Last modified:2021-09-03 11:38:11
Access level:the public Released:2012-04-06 06:30:54
Creative Commons license:CC BY
Reference information

Primary reference:

41030. H. Galiano and R. Albersdörfer. 2010. A New Basal Diplodocoid Species, Amphicoelias brontodiplodocus from the Morrison Formation, Big Horn Basin, Wyoming, with Taxonomic Reevaluation of Diplodocus, Apatosaurus, Barosaurus and Other Genera. Dinosauria International (Ten Sleep, WY) Report for September 2010 1-41 [M. Carrano/M. Carrano]

Secondary references:

71691 D. J. Chure and M. A. Loewen. 2020. Cranial anatomy of Allosaurus jimmadseni, a new species from the lower part of the Morrison Formation (Upper Jurassic) of western North America. PeerJ 8:e7803:1-65 [M. Uhen/M. Uhen/M. Carrano]
41031 H. Galiano and R. Albersdörfer. 2010. Amphicoelias "brontodiplodocus" a New Sauropod, from the Morrison Formation, Big Horn Basin, Wyoming, with Taxonomic Reevaluation of Diplodocus, Apatosaurus, Barosaurus and Other Genera. Dinosauria International (Ten Sleep, WY) Report for December 2010 1-51 [M. Carrano/M. Carrano]
49550 M. Hanson and P. J. Makovicky. 2013. A new specimen of Torvoaurus tanneri originally collected by Elmer Riggs. Historical Biology 26(6):775-784 [P. Mannion/J. Tennant/M. Carrano]