Where: Alaska (63.3° N, 145.7° W: paleocoordinates 10.6° N, 65.0° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Moscovian (315.2 - 307.0 Ma)
• Atokan. Unnamed formation of blue-black calcareous and siliceous, silty mudstone.
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified, black, blue, silty, calcareous mudstone
Size class: macrofossils
Collected by R.C. Allison, G.C. Bond in 1969
• Repository: University of Alaska
Primary reference: C. K. Chamberlain. 1977. Carboniferous and Permian trilobites from Ellesmere Island and Alaska. Journal of Paleontology 51:758-771 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 132285: authorized by Matthew Clapham, entered by Matthew Clapham on 11.08.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Griffithides (Griffithides) majus n. sp. Chamberlain 1977 trilobite |