Big Muddy-Channel Site, RTMP L1141 (Cretaceous of Canada)

Also known as BMC

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)

• 17 m below the double bentonite at the top of the section; Nesmo's unit; upper member of formation

• bed-level stratigraphic resolution

Environment/lithology: crevasse splay; lenticular, brown, argillaceous, sandy siltstone and lenticular, gray, green, argillaceous, carbonaceous siltstone

• "base of a muddy, sandy, clayey, siltstone/sandstone. The brownish lower portion of the host lithosome indicates the presence of rich plant fragments. The lithosome fines and lightens upward into muddy, grey-to-green siltstone, which contains coalified roots. The entire host lithosome is a lens-shaped deposit that is 25 m wide and 75 cm thick at its thickest."

Size classes: macrofossils, mesofossils

Reposited in the TMP

Collection methods: bulk, sieve,

Primary reference: J. D. Gardner. 2000. Albanerpetontid amphibians from the Upper Cretaceous (Campanian and Maastrichtian) of North America. Geodiversitas 22(3):349-388 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 45899: authorized by Matthew Carrano, entered by Matthew Carrano on 13.12.2004, edited by John Alroy

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Mammalia
 Allotheria -
Multituberculata indet.2 Cope 1884 multituberculate
 Multituberculata - Cimolomyidae
Cimolomyidae indet.2 Sloan and Van Valen 1965 multituberculate
Cimolomys clarki2 Sahni 1972 multituberculate
 Multituberculata - Neoplagiaulacidae
Mesodma cf. antiqua2, "Mesodma cf. primaeva" = Filikomys primaevus2
Mesodma cf. antiqua2 multituberculate
"Mesodma cf. primaeva" = Filikomys primaevus2 Lambe 1902 multituberculate
 Theriamorpha - Gypsonictopidae
Gypsonictops cf. lewisi2 Sahni 1972 eutherian
 Theriamorpha - Pediomyidae
Pediomyidae indet.1 Simpson 1927 metatherian
 Theriamorpha - Alphadontidae
Turgidodon russelli2 Fox 1979 metatherian
 Theriamorpha - Marsupialia
Reptilia
 Testudinata - Baenidae
Baenidae indet.3 Cope 1882 turtle
 Testudines - Chelydridae
Chelydridae indet.3 Swainson 1839 turtle
 Testudines - Trionychidae
Trionychidae indet.3 Gray 1825 softshell turtle
 Theropoda -
 Theropoda - Dromaeosauridae
Saurornitholestes langstoni3 Sues 1978 maniraptoran
 Theropoda -
Paronychodon lacustris3 Cope 1876 maniraptoran
 Theropoda - Tyrannosauridae
Tyrannosauridae indet.3 Osborn 1906 tyrannosaurid
 Ornithischia - Ceratopsidae
Ceratopsidae indet.3 Marsh 1888 ceratopsid
 Ornithischia - Pachycephalosauridae
Pachycephalosauridae indet.3 Sternberg 1945 ornithischian
 Ornithischia - Hadrosauridae
Hadrosauridae indet.3 Cope 1869 hadrosaurid
 Ornithischia - Nodosauridae
Nodosauridae indet.3 Marsh 1890 ankylosaur
 Loricata -
Crocodylia indet.1 crocodilian
 Squamata -
cf. Paraderma bogerti3 Estes 1964 squamates
 Squamata - Anguidae
cf. Odaxosaurus piger3 Gilmore 1928 squamates
 Squamata -
Varanoidea indet.3 Gray 1827 squamates
 Squamata - Helodermatidae
Helodermatidae indet.3 Gray 1837 squamates
 Squamata - Chamopsiidae
Leptochamops sp.3 Estes 1964 squamates
Amphibia
 Temnospondyli - Albanerpetontidae
Albanerpeton gracilis Gardner 2000 tetrapod
RTMP 96.78.126
 Salientia -
 Caudata - Urodela
Scapherpeton tectum3 Cope 1876 salamander
 Proteida - Batrachosauroididae
Opisthotriton kayi3 Auffenberg 1961 salamander
Actinopteri
 Teleostei -
 Albuliformes - Albulidae
Coriops amnicolus3 Estes 1969 bonefish
 Lepisosteiformes - Lepisosteidae
"Atractosteus occidentalis" = Lepisosteus occidentalis3
"Atractosteus occidentalis" = Lepisosteus occidentalis3 Leidy 1856 gar