GSC C-118586, Hale Creek Bridge (Jurassic of Canada)

Also known as MVA(F)85-255

Where: British Columbia, Canada (49.5° N, 121.9° W: paleocoordinates 42.5° N, 63.4° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Macrocephalites macrocephalus ammonoid zone, Mysterious Creek Formation, Early/Lower Callovian (164.7 - 161.2 Ma)

• These fossils belong in Callomon's (1984) Cadoceras comma Fauna B8 for the western Cordillera of North America which is equivalent in part to the Macrocephalus Zone of Europe of Early Callovian age. The faunal association at locality 17 suggests a more precise correlation to Callomon's zonation; namely the Cadoceras wosnessenskii Fauna B8(e) found in the Chinitna Formation, southern Alaska (Imlay, 1953b).

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, gray, calcareous siltstone

• Mainly calcareous, grey to black siltstone and shale

Size class: macrofossils

Reposited in the GSC

Primary reference: A. J. Arthur, P. L. Smith, J. W. H. Monger and H. W. Tipper. 1993. Mesozoic stratigraphy and Jurassic paleontology west of Harrison Lake, southwestern British Columbia. Geological Survey of Canada Bulletin 441:1-62 [A. Miller/A. Hendy/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 185051: authorized by Matthew Clapham, entered by Matthew Clapham on 08.04.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia indet. Linnaeus 1758 clam
 Ammonitida - Cardioceratidae
Cadoceras comma Imlay 1953 ammonite
 Ammonitida - Sphaeroceratidae
Lilloettia tipperi Frebold 1967 ammonite