GSC 92580, Almstrom Creek Fm, Canoe Lake, Northwest Territories (Jurassic to of Canada)

Where: Northwest Territories, Canada (68.2° N, 135.9° W: paleocoordinates 54.1° N, 58.1° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Almstrom Creek Formation (Bug Creek Group), Sinemurian to Sinemurian (199.3 - 182.7 Ma)

Environment/lithology: marine; sandstone

• Table 1 gives broad lithological descriptions of formations within the study area. The Almstrom Creek Fm is predominantly sandstone.

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 34221: authorized by Arnold Miller, entered by Karen Layou on 22.08.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Pectinoidae
? Eopecten sp. Douvillé 1897 scallop
 Pectinida - Limidae
Lima sp. Bruguière 1797 file clam
 Pectinida - Oxytomidae
Oxytoma sp. Meek 1864 scallop
"Oxytoma (Oxytoma) cf. inequivalvis" = Oxytoma inequivalvis Sowerby 1819 scallop
Oxytoma (Palmoxytoma) cygnipes Young and Bird 1822 scallop
 Ostreida - Gryphaeidae
? Gryphaea sp. Lamarck 1801 oyster
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
 Ostreida - Bakevelliidae
Aguilerella sp. Chavan 1951 oyster
 Cardiida - Glossidae
"? Isocardia sp." = Glossus
"? Isocardia sp." = Glossus Poli 1795 clam
 Pholadomyida - Pholadomyidae
Pholadomya sp. Sowerby 1823 clam
Pholadomya ambigua Sowerby 1819 clam
 Trigoniida -
Cephalopoda
 Belemnoidea -
Belemnitida indet. Zittel 1895 belemnite
Rhynchonellata
 Rhynchonellida -