Prairie Level Site, RTMP L1130 (Cretaceous of Canada)

Also known as PLS

Where: Alberta, Canada (49.1° N, 110.7° W: paleocoordinates 56.3° N, 76.2° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Upper Member (Oldman Formation), Late/Upper Campanian (83.5 - 70.6 Ma)

• Nesmo's unit (upper unit of formation); 4.5 m below double bentonite at top of section

• bed-level stratigraphic resolution

Environment/lithology: channel lag; lenticular, fine-grained sandstone and ferruginous siltstone

• "1.9 m thick, fine-grained sandstone body. The host lithosome is composed of thinning-upward sets of medium- to large-scale trough cross-beds. The fossil-bearing bed represents an intraformational lag, which has a sharp contact on a rooted siltstone, with locally cemented ironstone...associated with...uncemented mudstone pebbles"

Size class: mesofossils

Reposited in the TMP

Collection methods: surface (float), sieve,

Primary reference: J. Peng, A. P. Russell, and D. B. Brinkman. 2001. Vertebrate microsite assemblages (exclusive of mammals) from the Foremost and Oldman Formations of the Judith River Group (Campanian) of southeastern Alberta: an illustrated guide. Provincial Museum of Alberta, Natural History Occasional Paper 25:1-54 [M. Carrano/M. Carrano/J. Alroy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 45671: authorized by Matthew Carrano, entered by Matthew Carrano on 22.11.2004, edited by John Alroy

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Unionida - Unionidae
Unionidae indet. Rafinesque 1820 freshwater mussel
Mammalia
 Theriamorpha - Pediomyidae
Pediomyidae indet.1, "Pediomys prokrejcii" = Leptalestes prokrejcii2
Pediomyidae indet.1 Simpson 1927 metatherian
"Pediomys prokrejcii" = Leptalestes prokrejcii2 Fox 1979 metatherian
 Theriamorpha - Alphadontidae
Turgidodon russelli2 Fox 1979 metatherian
 Allotheria -
Multituberculata indet.2 Cope 1884 multituberculate
 Multituberculata - Cimolomyidae
Cimolomyidae indet.2 Sloan and Van Valen 1965 multituberculate
Reptilia
 Squamata - Chamopsiidae
Socognathus unicuspis Gao and Fox 1991 squamates
 Squamata - Teiidae
Gerontoseps irvinensis Gao and Fox 1991 squamates
 Squamata -
Varanoidea indet. Gray 1827 squamates
 Squamata - Helodermatidae
Helodermatidae indet. Gray 1837 squamates
 Testudinata - Baenidae
Baenidae indet. Cope 1882 turtle
 Testudines - Chelydridae
Chelydridae indet. Swainson 1839 turtle
 Testudines - Trionychidae
Trionychidae indet. Gray 1825 softshell turtle
 Loricata -
Crocodylia indet.1 crocodilian
 Crocodylia - Alligatoridae
 Ornithischia - Ceratopsidae
Ceratopsidae indet. Marsh 1888 ceratopsid
 Ornithischia - Pachycephalosauridae
Pachycephalosauridae indet. Sternberg 1945 ornithischian
 Ornithischia - Hadrosauridae
Hadrosauridae indet. Cope 1869 hadrosaurid
 Ornithischia - Ankylosauridae
Ankylosauridae indet. Brown 1908 ankylosaurid
 Ornithischia - Nodosauridae
Nodosauridae indet. Marsh 1890 ankylosaur
 Theropoda -
Paronychodon lacustris Cope 1876 maniraptoran
 Theropoda - Troodontidae
Troodon formosus Leidy 1856 maniraptoran
 Theropoda - Dromaeosauridae
Richardoestesia gilmorei Currie et al. 1990 maniraptoran
Saurornitholestes langstoni Sues 1978 maniraptoran
Aves
  -
Aves indet. Linnaeus 1758 bird
Reptilia
 Theropoda - Tyrannosauridae
Tyrannosauridae indet. Osborn 1906 tyrannosaurid
 Choristodera -
Champsosaurus sp. Cope 1876 choristodere
Amphibia
 Salientia -
 Proteida - Batrachosauroididae
Opisthotriton kayi Auffenberg 1961 salamander
 Caudata - Urodela
Scapherpeton tectum Cope 1876 salamander
Actinopteri
 Holostei -
 Amiiformes - Amiidae
Amiidae indet. Huxley 1861 bowfin
 Lepisosteiformes - Lepisosteidae
"Atractosteus occidentalis" = Lepisosteus occidentalis
"Atractosteus occidentalis" = Lepisosteus occidentalis Leidy 1856 gar
 Teleostei -
 Elopiformes - Phyllodontidae
Phyllodontinae indet. Darteville and Casier 1949
 Esociformes - Esocidae
Estesesox foxi Wilson et al. 1992
Chondrichthyes
 Rajiformes - Rhinobatidae
Myledaphus bipartitus Cope 1876 guitarfish
unclassified
  -
Plantae indet. Haeckel 1866
"coalified wood"