Rat River outcrop, Richardson Mountains (Jurassic of Canada)

Where: Northwest Territories, Canada (67.6° N, 135.8° W: paleocoordinates 52.7° N, 58.9° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Oxynotum (196.5 - 189.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Collected by de Jonge in 1957

• Repository: Department of Geology, McMaster University, Hamilton, Ontario

Primary reference: D. V. Ager and G. E. G. Westermann. 1963. New Mesozoic Brachiopods From Canada. Journal of Paleontology 37(3):595-610 [D. Bottjer/N. Bonuso/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 133092: authorized by Matthew Clapham, entered by Matthew Clapham on 01.09.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Rhynchonellata
 Terebratulida - Loboidothyrididae
Serpula cf. tetragona Feldman et al. 2012
 Rhynchonellida - Rhynchonellidae
Rimirhynchia anglica Rollier 1917
Gastropoda
 Trochoidea - Turbinidae
"Turbo" sp. Linnaeus 1758 snail
Bivalvia
 Nuculanida - Nuculanidae
 Myalinida - Inoceramidae
? Inoceramus sp. Sowerby 1814 clam
 Pectinida - Limidae
Plagiostoma sp. Sowerby 1814 file clam
 Pectinida - Oxytomidae
"Oxytoma cf. inaequivalvis" = Oxytoma inequivalvis
"Oxytoma cf. inaequivalvis" = Oxytoma inequivalvis Sowerby 1819 scallop
 Pholadomyida - Pholadomyidae
Pholadomya cf. ambigua Sowerby 1819 clam
 Pholadida - Pleuromyidae
Pleuromya cf. unioides Roemer 1835 clam
Cephalopoda
 Belemnitida - Hastitidae
? Hastites sp. Meyer-Eymar 1883 belemnite
 Phylloceratida - Phylloceratidae
""Phylloceras" (Partschiceras) sp." = Partschiceras
""Phylloceras" (Partschiceras) sp." = Partschiceras Fucini 1920 ammonite
 Ammonitida - Oxynoticeratidae
Oxynoticeras aff. oxynotum Quenstedt 1843 ammonite
 Ammonitida - Asteroceratidae