Matthew's Site, RTMP BB 121 (Cretaceous of Canada)

Also known as microvertebrate, Bonebed 121, DPP

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: 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)" where positive numbers are above and negative below.

• bed-level stratigraphic resolution

Environment/lithology: crevasse splay; fine, silty, carbonaceous sandstone

• Splay deposits typically comprise stacked sequences of interlaminated sands and siltstones separated by erosional surfaces, thus indicating repeated flooding and aggradation.
• BB 121 occurs in a 1.5 m thick fining-upward unit of resistant, carbonaceous contorted, silty, very fine-to-fine-grained sandstone.

Size classes: macrofossils, mesofossils

Collected by M. Cross in 1987; 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 47811: 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

Gnathostomata
  -
Actinopteri
 Aspidorhynchiformes - Aspidorhynchidae
 Teleostei -
 Salmoniformes -
Esocoidea indet. Bleeker 1859
 Elopiformes - Phyllodontidae
Paralbula casei Estes 1969
 Albuliformes - Albulidae
Coriops amnicolus Estes 1969 bonefish
 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
Reptilia
 Choristodera -
Champsosaurus natator Parks 1933 choristodere
 Theropoda -
 Theropoda - Dromaeosauridae
Richardoestesia sp.2 Currie et al. 1990 maniraptoran
Saurornitholestes langstoni Sues 1978 maniraptoran
 Theropoda - Troodontidae
Troodon formosus Leidy 1856 maniraptoran
 Ornithischia -
 Ornithischia - Hadrosauridae
Hadrosauridae indet. Cope 1869 hadrosaurid
 Crocodylia -
Leidyosuchus canadensis Lambe 1907 crocodilian
 Squamata -
 Testudinata - Baenidae
Baenidae indet. Cope 1882 turtle
 Testudines - Trionychidae
Trionychinae indet.1 Gray 1825 softshell turtle
Mammalia
  -
Mammalia indet. Linnaeus 1758 mammal
 Theriamorpha -
Metatheria indet.2 Huxley 1880 metatherian
Amphibia
 Salientia -
 Caudata - Urodela
Scapherpeton tectum Cope 1876 salamander
 Proteida - Batrachosauroididae
Opisthotriton kayi Auffenberg 1961 salamander
Osteichthyes
 Acipenseriformes - Polyodontidae
Polyodontidae indet. Bonaparte 1838 paddlefish
Chondrichthyes
 Rajiformes - Rhinobatidae
Myledaphus bipartitus Cope 1876 guitarfish