Silliman's Fossil Mount Bryozoans (Ordovician of Canada)

Where: Nunavut, Canada (63.7° N, 69.0° W: paleocoordinates 8.7° S, 37.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Richmondian (449.6 - 445.5 Ma)

Environment/lithology: dolomitic limestone and carbonaceous 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: macrofossils

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 24119: authorized by Steven Holland, entered by Tori Hanson on 31.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• From Bassler 1911; Roy 1941.
Show authors, comments, and common names
unclassified
  -
Diannulites sp., Edriotrypa bassleri, Edriotrypa cf. minor
Edriotrypa cf. minor
Edriotrypa cf. E. aedalis minor
Stenolaemata
 Cystoporata - Ceramoporidae
Crepipora sp.
Crepipora sp. Ulrich 1882
 Trepostomida - Monticuliporidae
Atactoporella cf. schucherti, Prasopora sp.
Prasopora sp. Nicholson and Etheridge 1877
 Cryptostomata - Arthrostylidae
Nematopora ovalis
Nematopora ovalis Ulrich 1890
 Cryptostomata - Rhinidictyidae
Pachydictya pumila
 Trepostomata - Trematoporidae
Batostoma sp.
Batostoma sp. Ulrich 1882