Yukon Territory, Peel River Graptolites, Road River Formation (Ordovician of Canada)

Where: Yukon, Canada (65.9° N, 135.6° W: paleocoordinates 11.9° N, 54.7° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Paraglossograptus etheridgei graptolite zone, Upper Road River Formation (Road River Group), Caradoc (458.4 - 449.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; shale

• Environmental call by T. Hanson.

Size classes: macrofossils, mesofossils

Preservation: replaced with pyrite

Primary reference: D. E. Jackson. 1966. On the occurrence of Parabrograptus and Sinograptus from the Middle Ordovician of western Canada. Geological Magazine 103(30022):263-268 [S. Holland/T. Hanson/T. Hanson]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 25171: authorized by Steven Holland, entered by Tori Hanson on 31.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

 Graptoloidea - Dichograptidae
Didymograptus sp. McCoy 1851 graptolite
 Graptoloidea - Diplograptidae
 Graptoloidea - Climacograptidae
 Graptoloidea - Isograptidae
? Isograptus sp. Moberg 1892 graptolite
 Graptoloidea - Glossograptidae
Glossograptus sp. graptolite
 Graptoloidea - Sinograptidae
"Sinograptus cf. aequalis" = Sinograptus typicalis, Tylograptus intermedius
"Sinograptus cf. aequalis" = Sinograptus typicalis Mu 1957 graptolite
Tylograptus intermedius Mu 1957 graptolite
"Tylograptus" intermedius