GSC 92605, Manuel Creek Fm, Murray Ridge, northern Yukon (Jurassic of Canada)

Where: Yukon, Canada (68.0° N, 136.4° W: paleocoordinates 61.6° N, 58.9° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Manuel Creek Formation (Bug Creek Group), Aalenian (174.1 - 170.3 Ma)

Environment/lithology: marine; shale and siltstone

• Table 1 gives broad lithological descriptions of formations within the study area. The Manuel Creek Fm is predominantly shale, siltstone and sandstone. The fauna were collected from phosphatic concretions.

Size class: macrofossils

Preservation: concretion

Reposited in the GSC

Collection methods: surface (float),

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 34227: authorized by Arnold Miller, entered by Karen Layou on 22.08.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Propeamussiidae
"Propeamussium (Propeamussium) patriciae" = Propeamussium (Striatoamussium) patriciae
"Propeamussium (Propeamussium) patriciae" = Propeamussium (Striatoamussium) patriciae Poulton 1991 mud scallop
 Pectinida - Entoliidae
Entolium sp. Meek 1865 scallop
 Pectinida - Oxytomidae
Oxytoma sp. Meek 1864 scallop
 Pterioida -
"Inoceramus (Mytiloceramus) cf. polyplocus" = Mytiloceramus polyplocus
"Inoceramus (Mytiloceramus) cf. polyplocus" = Mytiloceramus polyplocus Roemer 1857 clam
 Pholadida - Pleuromyidae
Pleuromya sp. Agassiz 1845 clam
 Cardiida - Glossidae
""Isocardia" sp." = Glossus
""Isocardia" sp." = Glossus Poli 1795 clam
 Cardiida - Cardiidae
Protocardia sp. Beyrich 1845 cockle
Cephalopoda
 Belemnoidea -
Belemnitida indet. Zittel 1895 belemnite
 Ammonitida - Hildoceratidae
 Ammonitida - Hammatoceratidae
? Erycitoides sp. Westermann 1964 ammonite