Cleveland-Lloyd Dinosaur Quarry: Kimmeridgian, Utah
collected by Hintze & York; Stokes, Warner, Body & Jepsen; Madsen & Stokes 1927, 1929–1931, 1939–1941, 1960–1967, 1975-1990, 2001–2002, 2012

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Charophyta indet. Migula 1890
Bilbey 1993
    = Latochara latitruncata
Foster et al. 2016
Gastropoda - Architaenioglossa - Viviparidae
Viviparus sp. Montfort 1810
Foster et al. 2016
Gastropoda - Valvatidae
Mollusca indet. Linnaeus 1758
Bilbey 1993
"freshwater mollusks"
    = Amplovalvata sp. Yen 1952
Foster et al. 2016
Valvata sp. Müller 1774
Foster et al. 2016
Reptilia
Reptilia indet. Laurenti 1768
Stokes 1945
Reptilia - Testudines - Pleurosternidae
Glyptops sp. Marsh 1890
Miller et al. 1996 2 individuals
Reptilia - Dinosauria
Dinosauria indet. Owen 1842
Hirsch et al. 1989 1 specimen
eggshell
Reptilia - Prismatoolithidae
Prismatoolithus coloradensis Hirsch 1994
Hirsch 1994 1 specimen
recombined as Preprismatoolithus coloradensis
11584/BYU-VP 12019/HEC 464, 488
Reptilia
Diplodocus sp. Marsh 1878
Hou 1979 1 individual
    = ? Diplodocus sp. Marsh 1878
Madsen and Stokes 1972
    = Barosaurus sp. Marsh 1890
Foster et al. 2016
Brontosaurus sp. Marsh 1879
Hou 1979 1 individual
    = ? Apatosaurus sp. Marsh 1877
Madsen and Stokes 1972
Apatosaurus sp. Marsh 1877
Foster and Peterson 2016 1 specimen
posterior cervical vertebra
Reptilia - Camarasauridae
Camarasaurus sp. Cope 1877
Ikejiri 2005 1 individual
RTMP 83.35.03, to 83.35.06
Camarasaurus supremus Cope 1877
Chure et al. 2000 3 individuals
UUVP 1555, 1859, 1860, 1984, 3568, 3609, 4273, 4286, 4315, 5309, 6341, 10070, 11626, 10795, 22940
    = Camarasaurus cf. lentus Marsh 1889
Smith 1997
    = Camarasaurus ? lentus Marsh 1889
Ikejiri 2005
Camarasaurus lentus (Marsh 1889)
Ikejiri 2005 1 specimen
CEU 1694
Reptilia - Avetheropoda - Allosauridae
Antrodemus sp. Leidy 1870
Hou 1979 46 individuals
    = Allosaurus fragilis Marsh 1877
Stokes 1961
Reptilia - Avetheropoda
Coelurus sp. Marsh 1879
Madsen and Stokes 1972 2 specimens
"(n. sp.?)"
    = Coelurus fragilis Marsh 1879
Carpenter et al. 2005
UUVP 11743, 7795
Stokesosaurus clevelandi Madsen 1974
Madsen 1976 1 specimen
UUVP 2999/UMNH 7821
    = Tanycolagreus topwilsoni Carpenter et al. 2005
Carpenter et al. 2005
Stokesosaurus clevelandi n. gen., n. sp. Madsen 1974
Madsen 1974 1 individual
Stokesosaurus sp. Madsen 1974
Chure and Madsen 1993 1 specimen
UUVP 2455
    = ? Stokesosaurus clevelandi Madsen 1974
Chure and Madsen 1998
Reptilia - Piatnitzkysauridae
Marshosaurus bicentesimus n. gen., n. sp. Madsen 1976
Madsen 1976 2 individuals
Reptilia
Ceratosaurus sp. Marsh 1884
Hou 1979 1 individual
(4 measurements)
    = Ceratosaurus dentisulcatus n. sp. Madsen and Welles 2000
Madsen and Welles 2000
synonym of Ceratosaurus nasicornis
UMNH VP 5278
Reptilia - Nodosauridae
? Acanthopholidae indet. (Nopcsa 1902)
Madsen and Stokes 1972
synonym of Nodosauridae
"unknown sp. (probably assignable to Acanthopholidae)"
Reptilia - Stegosauridae
Stegosaurus ? sp. Marsh 1877
Madsen and Stokes 1972 1 individual
    = Stegosaurus sp. Marsh 1877
Madsen and Stokes 1978
Stegosaurus sp. Marsh 1877
Hou 1979 4 individuals
    = Stegosaurus stenops Marsh 1887
Madsen and Stokes 1972
    = Stegosaurus cf. stenops Marsh 1887
Smith 1997
Reptilia
Camptosaurus sp. Marsh 1885
Hou 1979 5 individuals
    = Camptosaurus cf. medius Marsh 1894
Madsen and Stokes 1978
    = Camptosaurus cf. browni Gilmore 1909
Smith 1997
synonym of Camptosaurus dispar
Reptilia - Goniopholididae
Crocodylia indet. (Owen 1842)
Stokes 1945 1 individual
    = Goniopholis sp. Owen 1842
Madsen and Stokes 1972
Charophyceae - Charales - Characeae
Aclistochara bransoni
Foster et al. 2016
unclassified
Stellatochara obovata
Foster et al. 2016
see common names

Geography
Country:United States State/province:Utah County:Emery
Coordinates: 39.3° North, 110.7° West (view map)
Paleocoordinates:35.0° North, 56.3° West
Basis of coordinate:stated in text
Altitude:5760 feet
Geographic resolution:outcrop
Time
Period:Jurassic Epoch:Late/Upper Jurassic
Stage:Kimmeridgian 10 m.y. bin:Jurassic 5
Key time interval:Kimmeridgian
Age range of interval:157.30000 - 152.10000 m.y. ago
Stratigraphy
Formation:Morrison Member:Brushy Basin
Stratigraphic resolution:bed
Stratigraphy comments: lower part of member, ca. 38 m above basal contact
Lithology and environment
Primary lithology:nodular,intraclastic,gray calcareous mudstone
Secondary lithology: lime mudstone
Includes fossils?Y
Lithology description: "a drab gray calcareous claystone...capped by a fossiliferous micritic limestone"; "a calcarous mudstone that...also includes abundant diagenetic limestone nodules and clay clasts."
Environment:pond
Geology comments: channel-top swale or oxbow pond in poorly drained floodplain/delta; overlain by lacustrine facies
Taphonomy
Modes of preservation:body
Lagerst�tten type:concentrate
Degree of concentration:-seasonal
Size of fossils:macrofossils,mesofossils,microfossils
Spatial orientation:random
Preservation of anatomical detail:good
Abundance in sediment:abundant
Articulated whole bodies:none
Associated major elements:none
Disassociated major elements:many
Disassociated minor elements:many
Size sorting:poor
Fragmentation:occasional
Bioerosion:occasional
Feeding/predation traces:arthropod boring
Temporal resolution:time-averaged
Spatial resolution:autochthonous
Collection methods and comments
Collection methods:core,selective quarrying,mechanical,field collection,survey of museum collection
Collection size:5000 specimens
Reason for describing collection:taxonomic analysis
Collectors:Hintze & York; Stokes, Warner, Body & Jepsen; Madsen & Stokes Collection dates:1927, 1929–1931, 1939–1941, 1960–1967, 1975-1990, 2001–2002, 2012
Metadata
Also known as:CLDQ, Cleveland Quarry, Malcolm Lloyd Jr. Quarry, UT-7
Database number:46439
Authorizer:M. Carrano Enterer:M. Carrano, K. Maguire
Modifier:M. Carrano Research group:vertebrate
Created:2005-01-13 08:24:39 Last modified:2019-07-15 10:52:27
Access level:the public Released:2005-01-13 08:24:39
Creative Commons license:CC BY
Reference information

Primary reference:

62377. W. L. Stokes. 1944. Jurassic dinosaurs from Emery County, Utah. Proceedings of the Utah Academy of Sciences, Arts and Letters 21:11 [M. Carrano/M. Carrano]

Secondary references:

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