Peraspis fauna, Road River Fm., Llanvirn (Ordovician of Canada)
Where: Yukon, Canada (62.8° N, 136.6° W: paleocoordinates 17.2° N, 76.5° W)
• coordinate based on political unit
When: Road River Formation, Llanvirn (466.0 - 460.9 Ma)
Environment/lithology: slope; black, argillaceous lime mudstone
• "black argillaceous lime mudstone and shales"
Size class: macrofossils
Primary reference: R. Ludvigsen. 1981. Biostratigraphy significance of Middle Ordovician trilobites from the Road River Formation, northern Cordillera. Geological Association of Canada Abstracts 6:A-36 [M. Uhen/J. Ju/J. Ju]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 302: authorized by Jack Sepkoski, entered by Mike Sommers on 20.11.1998
Creative Commons license: CC BY (attribution)
Taxonomic list
• "R.Ludvigsen 1981. Biostrat. significance of M.Ord. trilobites from the Road River Fm., northern Cordillera. Geol.Assoc.Canada Abstracts 6:A-36." [trilobites only, 1 brach]
Show authors, comments, and common names
Rhynchonellata | |
Orthida indet. Schuchert and Cooper 1932 | |
Inarticulata | |
Trilobita | |
Globampyx sp. Fortey 1975 trilobite | |
Peraspis sp. Whittington 1965 trilobite
Nileus sp. Dalman 1827 trilobite | |
Niobe sp. Angelin 1851 trilobite | |
Blosyropsis sp. Whittington 1965 trilobite | |
Illaenus sp. Dalman 1827 trilobite | |
Cybelurus sp. Levitsky 1962 trilobite | |
Protocalymene sp. Ross and Barnes 1967 trilobite | |
Artiopoda | |
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