Silliman's Fossil Mount Ostracodes (Ordovician of Canada)

Where: Nunavut, Canada (63.7° N, 68.8° W: paleocoordinates 8.7° S, 37.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Richmondian (449.5 - 443.7 Ma)

Environment/lithology: dolomitic limestone and calcareous shale

• Environmental call by T. Hanson.
• "Throughout the Mount, the top 50 feet of these beds consists of massive dolomite limestone, the next 75 feet of thin-bedded limestone and dolomite, and the lower 175 feet of calcareous shale with some interbedded limestone."

Size class: microfossils

Primary reference: A. K. Miller, W. Youngquist, and C. Collinson. 1954. Ordovician cephalopod fauna of Baffin Island. Geological Society of America Memoir 62:1-234 [S. Holland/T. Hanson/T. Hanson]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 24176: authorized by Steven Holland, entered by Tori Hanson on 01.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• List supplied by A. Scott Warthin, Jr., in 1952.
unclassified
  -
Ostracoda
 Palaeocopida - Eridoconchidae
Eridoconcha spp. Ulrich and Bassler 1923 ostracod
 Palaeocopida - Kirkbyellidae
 Palaeocopida - Leperditellidae
"Macronotella rugosa" = Punctaparchites rugosus
"Macronotella rugosa" = Punctaparchites rugosus Jones 1858 ostracod
 Podocopida - Bythocyprididae
 Leperditellocopida - Primitiidae
Primitia micula ostracod
"Primitia" micula
 Leperditellocopida - Schmidtellidae
Schmidtella spp. Ulrich 1892 ostracod
Schmidtella-Eridoconcha 2 spp.
 Leperditellocopida - Aparchitidae
 Hollinocopida - Oepikiumidae
"Biflabellum sp." = Oepikium
"Biflabellum sp." = Oepikium Agnew 1942 ostracod
 Hollinocopida - Euprimitiidae
Primitiella spp. Ulrich 1894 ostracod
 Hollinocopida - Tetradellidae
 Hollinocopida - Eurychilinidae
Eurychilina frobisheri ostracod
"Eurychilina" frobisheri
 Hollinocopida - Oepikellidae
 Beyrichicopida - Bolliidae
"Bollia cf. ridicula" = Quasibollia ridicula Keenan 1951 ostracod