Chris's Site, RTMP BB 107 (Cretaceous of Canada)

Also known as microvertebrate, DPP, Bonebed 107

Where: Alberta, Canada (50.8° N, 111.5° W: paleocoordinates 58.1° N, 76.1° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Oldman Formation (Belly River Group), Middle Campanian (83.5 - 70.6 Ma)

• Microvertebrate sites of Brinkman (1990) are "...placed in stratigraphic sequence by reference to a disconformity located about sixty meters below the base of the Lethbridge Coal (Eberth, 1990). The stratigraphic position of each site is expressed in terms of meteres above or below the disconformity (Fig. 2, Brinkman, 1990)" where positive numbers are above and negative below.

• bed-level stratigraphic resolution

Environment/lithology: crevasse splay; fine-grained, medium sandstone and carbonaceous siltstone

• Splay deposits typically comprise stacked sequences of interlaminated sands and siltstones separated by erosional surfaces, thus indicating repeated flooding and aggradation.
• BB 107 is a 30-50 cm thick, fine-to-medium-grained, contorted-to-horizontally-laminated, sandstone bed with thin, coaly siltstone laminae, all in a massive mudstone unit.

Size classes: macrofossils, mesofossils

Collected by C. Page; reposited in the TMP

Collection methods: bulk, surface (float), sieve,

• Screenwashed elements were collected using a screen with 9 openings per centimeter.

Primary reference: D. B. Brinkman. 1990. Paleontology of the Judith River Formation (Campanian) of Dinosaur National Park, Alberta, Canada: evidence from vertebrate microfossil locality. Palaeogeography, Palaeoclimatology, Palaeoecology 78:37-54 [A. Behrensmeyer/A. Behrensmeyer/M. Carrano]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 47809: authorized by Robin Whatley, entered by Robin Whatley on 02.03.2005, edited by Matthew Carrano and John Alroy

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Rajiformes - Rhinobatidae
Myledaphus bipartitus Cope 1876 guitarfish
Gnathostomata
  -
Osteichthyes
 Acipenseriformes - Acipenseridae
Acipenser sp. Linnaeus 1758 sturgeon
 Acipenseriformes - Polyodontidae
Polyodontidae indet. Bonaparte 1838 paddlefish
Amphibia
 Salientia -
 Proteida - Batrachosauroididae
Opisthotriton kayi Auffenberg 1961 salamander
 Caudata - Urodela
Scapherpeton tectum Cope 1876 salamander
Mammalia
  -
Mammalia indet. Linnaeus 1758 mammal
 Allotheria -
Multituberculata indet.2 Cope 1884 multituberculate
 Theriamorpha -
Eutheria indet.2 eutherian
Metatheria indet.2 Huxley 1880 metatherian
Reptilia
 Testudinata - Baenidae
Baenidae indet. Cope 1882 turtle
 Testudines - Trionychidae
Trionychinae indet.1 Gray 1825 softshell turtle
 Squamata -
 Crocodylia -
Leidyosuchus canadensis Lambe 1907 crocodilian
 Ornithischia -
 Ornithischia - Pachycephalosauridae
Pachycephalosauridae indet.2 Sternberg 1945 ornithischian
 Ornithischia -
Ceratopsia indet.2 ceratopsian
 Ornithischia - Hadrosauridae
Hadrosauridae indet. Cope 1869 hadrosaurid
 Ornithischia -
cf. Thescelosaurus neglectus Gilmore 1913 ornithopod
 Theropoda -
 Theropoda - Troodontidae
Troodon formosus Leidy 1856 maniraptoran
TMP 1986.202.0005
 Theropoda - Dromaeosauridae
Richardoestesia sp.2 Currie et al. 1990 maniraptoran
Saurornitholestes langstoni Sues 1978 maniraptoran
Aves
  -
? Aves indet.2 Linnaeus 1758 bird
Reptilia
 Choristodera -
Champsosaurus natator Parks 1933 choristodere
Actinopteri
 Lepisosteiformes - Lepisosteidae
Lepisosteus sp. Agassiz 1843 gar
may be same as Atractosteus occidentalis in Table 1?
 Amiiformes - Amiidae
"Kindleia sp." = Cyclurus
"Kindleia sp." = Cyclurus Agassiz 1839 bowfin
 Teleostei -
 Salmoniformes -
Esocoidea indet. Bleeker 1859
 Elopiformes - Phyllodontidae
Paralbula casei Estes 1969
 Albuliformes - Albulidae
Coriops amnicolus Estes 1969 bonefish
 Aspidorhynchiformes - Aspidorhynchidae