Brownie Butte (Cretaceous of the United States)

Also known as UCMP V-73097

Where: Garfield County, Montana (47.6° N, 107.0° W: paleocoordinates 54.4° N, 80.1° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Hell Creek Formation, Lancian (70.6 - 66.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; silty sandstone

Size classes: macrofossils, mesofossils

Collected in 1973-1975; reposited in the UCMP

Collection methods: surface (float),

Primary reference: R. E. Sloan and L. Van Valen. 1965. Cretaceous mammals from Montana. Science 148(3667):220-227 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 14515: authorized by John Alroy, entered by John Alroy on 30.04.1994, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Myliobatiformes - Dasyatidae
Myledaphus bipartitus3 Cope 1876 whiptail stingray
Gnathostomata
  -
Actinopteri
 Teleostei - Aspidorhynchidae
 Amiiformes - Amiidae
Amia fragosa3 Jordan 1927 bowfin
 Lepisosteiformes - Lepisosteidae
Lepisosteus occidentalis3 Leidy 1856 gar
Osteichthyes
 Proteida - Batrachosauroididae
Opisthotriton kayi3 Auffenberg 1961 tetrapod
 Caudata - Urodela
Scapherpeton sp.3 Cope 1876 salamander
Reptilia
  -
Reptilia indet.3 Laurenti 1768 reptile
 Testudines - Trionychidae
Trionychidae indet.3 Gray 1825 softshell turtle
 Testudines - Compsemydidae
Compsemys sp.3 Leidy 1856 turtle
 Avetheropoda - Caenagnathidae
Chirostenotes sp.3 Gilmore 1924 coelurosaur
 Avetheropoda - Dromaeosauridae
Richardoestesia cf. gilmorei4 Currie et al. 1990 coelurosaur
UCMP 123565
Aves
 Aves -
 Enantiornithes - Avisauridae
Avisaurus archibaldi n. gen. n. sp.2
Avisaurus archibaldi n. gen. n. sp.2 Brett-Surman and Paul 1985 bird
Reptilia
 Saurischia - Megalosauridae
"Megalosauridae indet." = Megalosauridae3
"Megalosauridae indet." = Megalosauridae3 Fitzinger 1843 tetanuran
 Neornithischia -
Ceratopsia indet.3 Marsh 1890 ornithischian
 Neornithischia - Hadrosauridae
Hadrosauridae indet.3 Cope 1869 hadrosaurid
 Crocodylia - Crocodylidae
Crocodylidae indet.3 Cuvier 1807 crocodile
 Crocodylia - Alligatoridae
Brachychampsa montana3 Gilmore 1911 crocodilian
 Squamata -
Squamata indet.3 Oppel 1811 lizard
Mammalia
 Mammalia -
 Leptictida - Gypsonictopidae
Gypsonictops hypoconus Simpson 1927 eutherian
Gypsonictops cf. illuminatus1 Lillegraven 1969 eutherian
 Marsupialia -
 Theriiformes -
Theria indet.3 Parker and Haswell 1897 mammal
 Theriiformes - Peradectidae
Pediomys elegans, "Pediomys hatcheri" = Aletridelphys hatcheri, "Pediomys cooki" = Leptalestes cooki1
Pediomys elegans Marsh 1889 metatherian
"Pediomys hatcheri" = Aletridelphys hatcheri Osborn 1898 metatherian
"Pediomys cooki" = Leptalestes cooki1 Clemens 1966 metatherian
citing Sloan 1976
 Didelphimorphia - Glasbiidae
Glasbius twitchelli1 Archibald 1982 marsupial
 Allotheria -
Multituberculata indet.3 Cope 1884 multituberculate
 Multituberculata -
Cimexomys minor Sloan and Van Valen 1965 multituberculate
 Multituberculata - Cimolomyidae
"Meniscoessus borealis" = Meniscoessus robustus
"Meniscoessus borealis" = Meniscoessus robustus Marsh 1889 multituberculate
 Multituberculata - Neoplagiaulacidae
Mesodma thompsoni Clemens 1964 multituberculate
Mesodma formosa Marsh 1889 multituberculate
 Multituberculata - Cimolodontidae
Cimolodon nitidus Marsh 1889 multituberculate