Websters Flats Locality (UMNH VP Loc. 11): Early/Lower Campanian, Utah

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Aquiladelphidae
? Aquiladelphis laurae n. sp. Eaton 2006
Eaton 2006 1 specimen
UMNH 5632
Mammalia - Pediomyidae
cf. Pediomys sp. Marsh 1889
Eaton et al. 1999 3 specimens
DUPLICATE REF 1413 or 1414 or 1415
    = "Pediomyidae" indet. Simpson 1927
Eaton 2006
UMNH 6894
    = Pediomyidae indet. Simpson 1927
Alroy 2007
cf. Iqualadelphis sp. Fox 1987
Eaton et al. 1999 1 specimen
DUPLICATE REF 1413 or 1414 or 1415
Mammalia
"Pediomys" aff. exiguus Fox 1971
Eaton 2006 1 specimen
recombined as Apistodon exiguus
"Pediomys" sp. near "P." exiguus; UMNH 6892
Protalphadon sp. Cifelli 1990
Eaton 2006 1 specimen
UMNH 5634
? Protalphadon sp. Cifelli 1990
Eaton 2006 2 specimens
UMNH 5635, 7490
Mammalia - Alphadontidae
"Alphadontidae" indet. Marshall et al. 1990
Eaton 2006 1 specimen
UMNH 7489
"Alphadon" cf. clemensi Eaton 1993
Eaton 2006 2 specimens
recombined as Eoalphadon clemensi
UMNH 11650, 6897
Alphadon cf. attaragos Lillegraven and McKenna 1986
Eaton et al. 1999 1 specimen
DUPLICATE REF 1413 or 1414 or 1415
Alphadon cf. sahnii Lillegraven and McKenna 1986
Eaton et al. 1999 2 specimens
    = Alphadon cf. halleyi Sahni 1972
Alroy 2002
DUPLICATE REF 1413 or 1414 or 1415
Mammalia - Multituberculata
Multituberculata indet. Cope 1884
Eaton et al. 1999 5 specimens
DUPLICATE REF 1413 or 1414 or 1415
Cedaromys sp. Eaton and Cifelli 2001
Eaton 2006 2 specimens
UMNH 5163, 14096
Mammalia - Multituberculata - Cimolomyidae
Cimolomys sp. Marsh 1889
Eaton 2006 1 specimen
UMNH 6900
? Cimolomys sp. Marsh 1889
Eaton 2006 1 specimen
UMNH 14111
Meniscoessus cf. intermedius Fox 1976
Eaton 2006 1 specimen
UMNH 5101
Mammalia - Multituberculata - Cimolodontidae
Cimolodon cf. similis Fox 1971
Eaton 2006 1 specimen
UMNH 6902
Reptilia
Parasaniwa cf. wyomingensis Gilmore 1928
Reptilia - Dromaeosauridae
? Dromaeosauridae indet. Colbert and Russell 1969
Reptilia - Ankylosauridae
? Ankylosauridae indet. Brown 1908
1 specimen
tooth
    = Ankylosaurinae indet. Nopcsa 1918
Loewen et al. 2013
Reptilia - Hadrosauridae
Hadrosauridae indet. Cope 1869
Amphibia - Temnospondyli - Urodela
Nezpercius dodsoni Blob et al. 2001
Titus et al. 2016
Amphibia - Temnospondyli
Anura indet. (Fischer von Waldheim 1813)
Titus et al. 2016
Scotiophryne pustulosa Estes 1969
Titus et al. 2016
see common names

Geography
Country:United States State/province:Utah County:Iron
Coordinates: 37.6° North, 112.9° West (view map)
Paleocoordinates:45.8° North, 84.2° West
Basis of coordinate:based on political unit
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Campanian 10 m.y. bin:Cretaceous 7
*Epoch:Senonian
Key time interval:Early/Lower Campanian
Age range of interval:83.60000 - 72.10000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Wahweap
Local section:CedCn Local bed:664 m
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: orig. assigned to "Aquilan"; Wahweap equivalent, near top of formation
also referred to Grand Castle Formation
Lithology and environment
Primary lithology: mudstone
Secondary lithology:white sandstone
Includes fossils?Y
Environment:"floodplain"
Taphonomy
Modes of preservation:body
Size of fossils:mesofossils
Disassociated major elements:many
Collection methods and comments
Collection methods:bulk,sieve,field collection
Collection size:7 specimens
Reason for describing collection:general faunal/floral analysis
Taxonomic list comments:formation unnamed; generically identifiable NISP 7; age unclear, but said to be older than Judithian and presence of Iqualadelphis suggests an Aquilan age
Metadata
Database number:14430
Authorizer:J. Alroy, P. Holroyd, M. Carrano Enterer:J. Alroy, P. Holroyd, M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2000-05-19 00:00:00 Last modified:2023-05-16 15:56:15
Access level:the public Released:2000-05-19 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
1414. J. G. Eaton, S. Diem, J. D. Archibald, C. Schierup, and H. Munk. 1999. Vertebrate paleontology of the Upper Cretaceous rocks of the Markagunt Plateau, southwestern Utah. In D. D. Gillette (ed.), Vertebrate Paleontology in Utah, Utah Geological Survey Miscellaneous Publication 99-1:323-333 [J. Alroy/J. Alroy/M. Carrano]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
19636 J. Alroy. 2007. Synonymies and reidentifications of North American fossil vertebrates and so forth. [J. Alroy/J. Alroy]
17864 J. G. Eaton. 2006. Late Cretaceous mammals from Cedar Canyon, southwestern Utah. In S. G. Lucas and R. M. Sullivan (eds.), Late Cretaceous Vertebrates from the Western Interior. New Mexico Museum of Natural History and Science Bulletin 35:373-402 [P. Holroyd/P. Holroyd/M. Carrano]
1413 J. G. Eaton, R. L. Cifelli, J. H. Hutchison, J. I. Kirkland, and J. M. Parrish. 1999. Cretaceous vertebrate faunas from the Kaiparowits Plateau, south-central Utah. In D. D. Gillette (ed.), Vertebrate Paleontology in Utah. Utah Geological Survey Miscellaneous Publication 99-1:345-353 [J. Alroy/J. Alroy/M. Carrano]
84664 M. A. Loewen, M. E. Burns, M. A. Getty, J. I. Kirkland, and M. K. Vickaryous. 2013. Review of Late Cretaceous ankylosaurian dinosaurs from the Grand Staircase region, southern Utah. In A. L. Titus & M. A. Loewen (ed.), At the Top of the Grand Staircase: The Late Cretaceous of Southern Utah 445-462 [M. Carrano/M. Carrano/M. Carrano]
61882 A. L. Titus, J. G. Eaton, and J. J. W. Sertich. 2016. Late Cretaceous stratigraphy and vertebrate faunas of the Markagunt, Paunsaugunt, and Kaiparowits plateaus, southern Utah. Geology of the Intermountain West 3:229-291 [M. Carrano/M. Carrano]