False Disciple Point: Lancian, Wyoming
collected by W. A. Clemens

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Actinopteri - Aspidorhynchiformes - Aspidorhynchidae
Belonostomus longirostris (Lambe 1902)
Estes 1964 1 element
Actinopteri - Elopiformes - Elopidae
Elopidae indet. Bonaparte 1846
Estes 1964
Actinopteri - Lepisosteiformes - Lepisosteidae
Lepisosteus occidentalis (Leidy 1856)
Estes 1964 6 elements
original and current combination Lepidotus occidentalis
Actinopteri - Amiiformes - Amiidae
cf. Protamia sp. (Leidy 1873)
Estes 1964 1 element
Kindleia fragosa Jordan 1927
Estes 1964 3 elements
recombined as Cyclurus fragosus
Reptilia
Champsosaurus sp. Cope 1876
Estes 1964 1 specimen
Reptilia - Tyrannosauridae
cf. Tyrannosaurus rex Osborn 1905
Estes 1964
Reptilia - Ornithomimidae
cf. Ornithomimus sp. Marsh 1890
Estes 1964
Reptilia - Ceratopsidae
cf. Triceratops sp. Marsh 1889
Estes 1964
Reptilia
Leidyosuchus sternbergi (Gilmore 1910)
Estes 1964
recombined as Borealosuchus sternbergii
Brachychampsa montana Gilmore 1911
Estes 1964
Reptilia - Chamopsiidae
Meniscognathus altmani Estes 1964
Estes 1964 1 specimen
Haptosphenus placodon Estes 1964
Estes 1964 1 specimen
Reptilia
Paraderma bogerti n. gen., n. sp. Estes 1964
Estes 1964 1 specimen
UCMP 54261 (holotype maxilla)
Parasaniwa wyomingensis Gilmore 1928
Estes 1964 1 specimen
Reptilia - Anguidae
Peltosaurus piger Gilmore 1928
Estes 1964 1 specimen
recombined as Odaxosaurus piger
Reptilia - Testudines - Emydidae
Emydinae indet. Rafinesque 1815
Estes 1964
"near Pseudemys?"
Reptilia - Testudines - Trionychidae
Trionychidae sp. Gray 1825
Holroyd and Hutchison 2002
Voucher: UCMP 173370
Aspideretes beecheri Hay 1904
Estes 1964
recombined as Trionyx beecheri
Reptilia - Testudines - Chelydridae
Chelydridae sp. Swainson 1839
Holroyd and Hutchison 2002
Voucher: UCMP 170378
Reptilia - Testudines
Plastomeninae sp. (Hay 1902)
Holroyd and Hutchison 2002
spelled with current rank as Plastomenidae
Voucher: UCMP 173426
Mammalia - Multituberculata - Cimolodontidae
Cimolodon nitidus Marsh 1889
Mammalia - Multituberculata - Neoplagiaulacidae
Mesodma formosa (Marsh 1889)
    = Mesodma sp. Jepsen 1940
Alroy 2002
Mesodma thompsoni Clemens 1964
Mammalia - Multituberculata - Cimolomyidae
Meniscoessus robustus (Marsh 1889)
Cimolomys gracilis Marsh 1889
Mammalia - Stagodontidae
Didelphodon vorax Marsh 1889
Clemens 1966
Mammalia - Alphadontidae
Alphadon marshi Simpson 1927
Clemens 1966
Mammalia - Pediomyidae
Pediomys cooki Clemens 1966
Clemens 1966
recombined as Leptalestes cooki
Pediomys hatcheri (Osborn 1898)
Clemens 1966
original and current combination Protolambda hatcheri
Pediomys florencae Clemens 1966
Clemens 1966
recombined as Protolambda florencae
Mammalia - Gypsonictopidae
Gypsonictops hypoconus Simpson 1927
Clemens 1973
Mammalia - Cimolestidae
Cimolestes incisus Marsh 1889
Clemens 1973
Amphibia - Temnospondyli - Pelobatidae
? Pelobatidae indet. Lataste 1879
Estes 1964 1 specimen
Amphibia - Temnospondyli - Urodela
Habrosaurus dilatus Gilmore 1928
Estes 1964 1 specimen
Scapherpeton tectum Cope 1876
Estes 1964 3 specimens
Amphibia - Temnospondyli - Batrachosauroididae
Opisthotriton kayi Auffenberg 1961
Estes 1964 3 specimens
Prodesmodon copei Estes 1964
Estes 1964 1 specimen
Acipenseriformes - Acipenseridae
Acipenser eruciferus (Cope 1876)
Estes 1964 1 element
Chondrichthyes - Rajiformes - Rhinobatidae
Myledaphus bipartitus Cope 1876
Estes 1964 1 element
Chondrichthyes - Rajiformes - Sclerorhynchidae
Ischyrhiza avonicola Estes 1964
Estes 1964 1 element
Gastropoda - Viviparidae
cf. Viviparus sp. Montfort 1810
Estes 1964
cf. Lioplacodes sp. Meek and Hayden 1864
Estes 1964
Gastropoda - Heterostropha - Physidae
cf. Physa sp. Draparnaud 1801
Estes 1964
Bivalvia - Unionida - Unionidae
Unionidae indet. Rafinesque 1820
Estes 1964
Bivalvia - Cardiida - Corbiculidae
? Corbiculidae indet. Gray 1847
Estes 1964
see common names

Geography
Country:United States State/province:Wyoming County:Niobrara
Coordinates: 43.2° North, 104.5° West (view map)
Paleocoordinates:49.6° North, 79.4° West
Basis of coordinate:unpublished field data
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
*Epoch:Senonian
Key time interval:Lancian
Age range of interval:72.10000 - 66.00000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Lance
Stratigraphic resolution:bed
Lithology and environment
Primary lithology:"cross stratification" sandstone
Secondary lithology: sandy "shale"
Includes fossils?Y
Includes fossils?Y
Lithology description: "cross-stratified sandstone and sandy shales"
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Lagerst�tten type:concentrate
Degree of concentration:concentrated
Size of fossils:mesofossils
Disassociated major elements:many
Disassociated minor elements:many
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Museum repositories:UCMP
Collectors:W. A. Clemens
Metadata
Also known as:UCMP V-5817
Database number:14538
Authorizer:J. Alroy, R. Benson, M. Carrano Enterer:J. Alroy, M. Carrano, R. Benson
Modifier:M. Carrano Research group:vertebrate
Created:1994-07-26 00:00:00 Last modified:2013-09-17 17:06:55
Access level:the public Released:1994-07-26 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
1239. W. A. Clemens. 1964. Fossil mammals of the type Lance Formation, Wyoming. Part I. Introduction and Marsupialia. University of California Publications in Geological Sciences 48:1-105 [J. Alroy/J. Alroy/J. Alroy]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
1241 W. A. Clemens. 1966. Fossil mammals from the type Lance Formation, Wyoming. Part II. Marsupialia. University of California Publications in Geological Sciences 62:1-122 [J. Alroy/J. Alroy/J. Alroy]
1242 W. A. Clemens. 1973. Fossil mammals of the type Lance Formation, Wyoming. Part III. Eutheria and summary. University of California Publications in Geological Sciences 94:1-102 [J. Alroy/J. Alroy/J. Alroy]
13103 U.C.M.P. Database. 2005. UCMP collections database. University of California Museum of Paleontology [M. Carrano/M. Carrano/M. Carrano]
803 R. Estes. 1964. Fossil vertebrates from the Late Cretaceous Lance Formation, eastern Wyoming. University of California Publications in Geological Sciences 49:1-187 [J. Alroy/M. Sommers/M. Carrano]
42536 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]