RTMP BB 97 (Cretaceous of Canada)

Also known as Bonebed 97, DPP, JMC 1044

Where: Alberta, Canada (50.7° N, 111.5° W: paleocoordinates 58.0° N, 76.0° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Dinosaur Park Formation (Belly River Group), Late/Upper 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)."

• bed-level stratigraphic resolution

Environment/lithology: "channel"; lag, fine-grained, medium, pebbly sandstone

• Characterized as in-channel, coastal plain. Facies association = trough cross-stratified sandstones. Lag deposits, or plane bed deposits that show horizontal-planar stratification, bed thicknesses exceeding single pebble diameters, normal graded or fining upward texture, and matrix-supported clasts. Coastal Plain. The disconformity in southern Alberta records a Cordilleran uplift event west of the Park.
• "BB 97 occurs locally within an amalgamated sandstone lithosome (Fig. J6)...compris[ing] an uncertain number of stacked sets of TCSS [trough cross-stratified sandstones]..BB97 occurs at the scour base of a 1.5 m wide TCSS set near the top of the stacked sequence and comprises a 50 cm thick pocket of fine-to-medium-grained sandstone with numerous vertebrate fossils and abundant, well-rounded, matrix-supported intra clast pebbles measuring no more than 3-4 cm in maximum dimension.."

Size classes: macrofossils, mesofossils

Collected by J. Danis; 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 45261: authorized by John Alroy, entered by Robin Whatley on 15.10.2004, edited by Matthew Carrano, Evangelos Vlachos and John Alroy

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Myliobatiformes - Dasyatidae
Myledaphus bipartitus Cope 1876 whiptail stingray
Gnathostomata
  -
Actinopteri
 Teleostei -
 Teleostei - Aspidorhynchidae
 Elopiformes - Phyllodontidae
Paralbula casei Estes 1969
 Albuliformes - Albulidae
Coriops amnicolus Estes 1969 bonefish
 Salmoniformes -
Esocoidea indet. Bleeker 1859
 Amiiformes - Amiidae
"Kindleia sp." = Cyclurus
"Kindleia sp." = Cyclurus Agassiz 1843 bowfin
 Lepisosteiformes - Lepisosteidae
Lepisosteus sp. Agassiz 1843 gar
may be same as Atractosteus occidentalis in Table 1?
Osteichthyes
 Salientia -
 Proteida - Batrachosauroididae
Opisthotriton kayi Auffenberg 1961 salamander
 Caudata - Urodela
Scapherpeton tectum Cope 1876 salamander
Reptilia
 Testudines - Trionychidae
Trionychinae indet.1 softshell turtle
 Testudines - Baenidae
Baenidae indet. Cope 1882 turtle
Neurankylus eximius2 Lambe 1902 turtle
TMP 84.59.39, fragmentary pterygoid
 Testudines - Panchelydridae
 Avetheropoda - Dromaeosauridae
cf. Dromaeosauridae indet. Colbert and Russell 1969 coelurosaur
Richardoestesia sp.3 Currie et al. 1990 coelurosaur
Saurornitholestes langstoni Sues 1978 coelurosaur
 Avetheropoda - Troodontidae
Troodon sp.3 Leidy 1856 coelurosaur
 Avetheropoda - Tyrannosauridae
Tyrannosauridae indet. Osborn 1906 tyrannosaurid
 Ornithischia -
Ankylosauria indet. ornithischian
 Neornithischia - Pachycephalosauridae
Pachycephalosauridae indet.3 Sternberg 1945 ornithischian
 Neornithischia - Ceratopsidae
Ceratopsidae indet. Marsh 1888 ceratopsid
 Neornithischia - Thescelosauridae
Thescelosaurus cf. neglectus Gilmore 1913 ornithischian
 Neornithischia - Hadrosauridae
Hadrosauridae indet. Cope 1869 hadrosaurid
 Crocodylia -
Leidyosuchus canadensis Lambe 1907 crocodilian
 Squamata -
 Choristodera -
Champsosaurus natator Parks 1933 choristodere
Mammalia
  -
Mammalia indet. Linnaeus 1758 mammal
 Allotheria -
Multituberculata indet.3 Cope 1884 multituberculate