MNA 1067, Bulldog Bench (Cretaceous to of the United States)

Also known as UMNH VP Loc. 27; OMNH V808

Where: Garfield County, Utah (37.8° N, 111.5° W: paleocoordinates 39.2° N, 74.0° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Naturita Formation, Middle Cenomanian to Middle Cenomanian (99.6 - 93.5 Ma)

• said to be Cenomanian, middle part of "Dakota Fm." = Naturita

• bed-level stratigraphic resolution

Environment/lithology: crevasse splay; mudstone

• "overbank deposit immediately adjacent to a meandering river levee"

Size class: mesofossils

Collection methods: bulk, sieve,

Primary reference: J. G. Eaton and R. L. Cifelli. 1988. Preliminary report on Late Cretaceous mammals of the Kaiparowits Plateau, southern Utah. Contributions to Geology, University of Wyoming 26(2):45-55 [J. Alroy/J. Alroy/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 14385: authorized by John Alroy, entered by John Alroy on 21.09.1998, edited by Matthew Carrano, Terri Cleary and Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

• in the upper 10 - 20 m of the middle mbr.
see also Eaton 1993c, Eaton et al. 1999
Chondrichthyes
 Hybodontiformes - Lonchidiidae
Lonchidion sp.10 Estes 1964 elasmobranch
MNA.V.10284-85, 10287–301, 10381-83
 Hybodontiformes - Hybodontidae
Hybodus sp.10 Agassiz 1834 elasmobranch
MNA.V.10302–10304, 10388 (plus many more specimens)
 Batoidea -
Cristomylus bulldogensis n. sp.10 Kirkland et al. 2013 ray
MNA V10139, 10147-8, 10186, 10188-95
Reptilia
 Squamata -
Coniophis sp.11 Marsh 1892 snake
MNA V9102, thoracic vertebra missing the condyle
cf. Scincoidea "indet. Dakota morphotype C"11 squamates
MNA V10033, dentary fragment
Webbsaurus lofgreni n. gen. n. sp.11 Nydam 2013 squamates
MNA V9083 (holotype), mostly complete left dentary
Dakotasaurus gillettorum n. gen. n. sp.11 Nydam 2013 squamates
MNA V9110 (holotype), partial right mandible; V10374, partial left mandible
Anguimorpha indet.11 squamates
MNA V10038, osteoderm
Cnodontosaurus suchockii n. gen. n. sp.11 Nydam 2013 squamates
MNA V9084 (holotype), right dentary; V10373, broken left maxilla
Platynota "indet. Dakota morphotype E"11 squamates
MNA V9086, anterior portion of left dentary
Scincomorpha "indet. Dakota morphotype D"11 Camp 1923 squamates
MNA V10031, jaw fragment
? Scincomorpha indet.11 Camp 1923 squamates
MNA V10037, osteoderm
 Squamata - Contogeniidae
Utahgenys sp.12 Nydam and Fitzpatrick 2009 squamates
MNA V9113
 Squamata - Polyglyphanodontidae
Bicuspidon smikros11 Nydam 2013 squamates
MNA V9086, V10002, V10029
 Loricata -
Mesoeucrocodylia indet.9 Whetstone and Whybrow 1983 crocodilian
MNA V10404, 10405
Mammalia
 Theriamorpha -
Theria indet.3 Parker and Haswell 1897 mammal
four indeterminate forms, MNA V6245, V6136, V6246, V6467
 Theriamorpha - Stagodontidae
Pariadens kirklandi3 Cifelli and Eaton 1987 metatherian
MNA V5353, V5373, V5383, V5833-34, V5836-41, V5850, V6019, V6024, V6058, V6090, V6092-93, V6388, V6341
 Theriamorpha - Alphadontidae
Alphadontidae indet.3, Varalphadon janetae n. sp.2, "Alphadon clemensi n. sp." = Eoalphadon clemensi3, "Alphadon lillegraveni n. sp." = Eoalphadon lillegraveni3, Alphadon sp.
Alphadontidae indet.3 Marshall et al. 1990 metatherian
MNA V6312
Varalphadon janetae n. sp.2 Carneiro 2018 metatherian
"Alphadon clemensi n. sp." = Eoalphadon clemensi3 Eaton 1993 metatherian
MNA V6338, V5352, V5829-31, V5855, V6034, V6039, V6051, V6097, V6244, V6316, V6321, V6325, V6463, V6791-92, V6878-79, V6881, V6883
"Alphadon lillegraveni n. sp." = Eoalphadon lillegraveni3 Eaton 1993 metatherian
MNA V5835, V5364, V5370, V5372, V5375, V5833, V5835, V6052, V6317, V6393-94, V6882
Alphadon sp. Simpson 1927 metatherian
MNA V6029, V6239, V6376, V6492, V6790
 Theriamorpha -
Protalphadon sp.3 Cifelli 1990 metatherian
MNA V5855, V6299, V6387
Dakotadens sp.3 Eaton 1993 metatherian
MNA V5345, V6025
Dakotadens morrowi n. gen. n. sp.3 Eaton 1993 metatherian
MNA V5825, V5354
 Allotheria -
Multituberculata "indet."4 Cope 1884 multituberculate
Multituberculata "indet. B"4 Cope 1884 multituberculate
 Multituberculata - Cimolodontidae
Cimolodontidae indet.4 Marsh 1889 multituberculate
Cimolodon cf. similis4 Fox 1971 multituberculate
 Multituberculata -
Paracimexomys sp.4 Archibald 1982 multituberculate
Paracimexomys sp. [Eaton 1995]
Paracimexomys cf. robisoni4 Eaton and Nelson 1991 multituberculate
Bryceomys sp.5 Eaton 1995 multituberculate
one specimen of "Paracimexomys cf. robinsoni"
? Dakotamys sp.4 Eaton 1995 multituberculate
Dakotamys malcolmi n. sp.4 Eaton 1995 multituberculate
Amphibia
 Temnospondyli - Albanerpetontidae
Albanerpetontidae indet.7, "cf. Albanerpeton nexuosum" = Albanerpeton nexuosus7
Albanerpetontidae indet.7 Fox and Naylor 1982 tetrapod
"cf. Albanerpeton nexuosum" = Albanerpeton nexuosus7 Estes 1981 tetrapod
 Proteida - Batrachosauroididae
Batrachosauroididae "indet. A"8 Auffenberg 1958 salamander
MNA V10237, 10367
 Caudata - Urodela
Urodela indet.8 salamander
MNA V9095, 10238-39, 10368-70; UMNH VP 13013; OMNH 67078-79
Scapherpetontidae indet.8 Auffenberg and Goin 1959 salamander
MNA V10360–65, 10233–36; UMNH VP 13080, 13093, 13105, 13112
Osteichthyes
 Dipnoi - Ceratodontidae
Ceratodus molossus6 Frederickson and Cifelli 2017 lungfish
MNA.V.10649
Ceratodus gustasoni1 Kirkland 1987 lungfish
MNA V10380
Actinopteri
 Pycnodontiformes - Pycnodontidae
Coelodus sp.1 Haeckel
MNA V10315–20
 Lepisosteiformes -
Lepidotes sp.1 Agassiz 1832 gar
MNA V10308–14
 Amiiformes - Amiidae
Amiidae "indet. AWSS"1 Huxley 1861 bowfin
MNA V10332-3
Amiinae indet.1 Bonaparte 1837 bowfin
MNA V10322-3
 Teleostei -
Teleostei "indet. O"1 Müller 1846
MNA V10324
 Albuliformes - Albulidae
Coriops sp.1 Estes 1969 bonefish
MNA V10306-7
 Teleostei -
Elopiformes indet.1 Sauvage 1875
MNA V10321, 10325-6
 Hiodontiformes - Hiodontidae
 Teleostei -
Ellimmichthyiformes "indet. LvD"1 Grande 1982
MNA V10328
Ellimmichthyiformes "indet. U-7"1 Grande 1982
MNA V10329–31
 Ellimmichthyiformes -
Diplomystus sp.1 Cope 1877
MNA V10327
 Teleostei -
Euteleostei "indet. U-4"1 Rosen 1973
MNA V19135