GSC 94053, Murray Ridge Fm, Murray Ridge, northern Yukon (Jurassic of Canada)

Where: Yukon, Canada (68.0° N, 136.5° W: paleocoordinates 50.2° N, 60.4° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Murray Ridge Formation (Bug Creek Group), Hettangian (201.3 - 199.3 Ma)

• from the basal member of the formation

Environment/lithology: marine; shale and siltstone

• Table 1 gives broad lithological descriptions of formations within the study area. The Murray Ridge Fm is predominantly shale and siltstone.

Size class: macrofossils

Reposited in the GSC

Collection methods: surface (in situ),

Primary reference: T.P. Poulton. 1991. Hettangian through Aalenian (Jurassic) guide fossils and biostratigraphy, Northern Yukon and adjacent Northwest Territories. Geological Survey of Canada Bulletin (410)1-95 [A. Miller/K. Layou/K. Layou]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 34240: authorized by Arnold Miller, entered by Karen Layou on 22.08.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Arcida - Parallelodontidae
? Grammatodon sp. Meek and Hayden 1860 clam
 Myalinida - Inoceramidae
 Pectinida - Entoliidae
Entolium sp. Meek 1865 scallop
 Pectinida - Pectinoidae
? Eopecten sp. Douvillé 1897 scallop
 Pectinida - Entolioididae
Kolymonectes staeschei Polubotko 1968 scallop
 Pectinida - Limidae
"Lima (Lima) parva" = Limea (Pseudolimea) parva
"Lima (Lima) parva" = Limea (Pseudolimea) parva Milova 1976 file clam
 Pectinida - Oxytomidae
Oxytoma sp. Meek 1864 scallop
Oxytoma (Oxytoma) sp. Meek 1864 scallop
? Meleagrinella sp. Whitfield 1855 scallop
 Ostreida - Gryphaeidae
? Gryphaea sp. Lamarck 1801 oyster
 Ostreida - Ostreidae
"Ostrea" sp. Linnaeus 1758 oyster
 Ostreida -
 Carditida - Cardiniidae
? Cardinia sp. Edwards 1837 clam
 Pholadida - Pleuromyidae
? Pleuromya sp. Agassiz 1845 clam
Pleuromya galathea Agassiz 1842 clam
 Cardiida - Corbiculidae
? Corbicula sp. Megerle 1811 clam
 Cardiida - Glossidae
"? Isocardia sp." = Glossus
"? Isocardia sp." = Glossus Poli 1795 clam
 Thraciida - Thraciidae
? Thracia sp. Blainville 1824 clam
 Pholadomyida - Pholadomyidae
Homomya sp. Agassiz 1843 clam
 Trigoniida -
 Nuculida - Nuculidae
? Nucula sp. Lamarck 1799 nut clam
Gastropoda
  -
Gastropoda indet. Cuvier 1797 snail
Cephalopoda
 Ammonitida - Psiloceratidae
? Badouxia sp. Guex and Taylor 1976 ammonite
 Ammonitida - Lytoceratidae
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
Rhynchonellata
 Rhynchonellida -