Rockland, Ottawa Valley, Aylmer Fm. (Ordovician of Canada)

Where: Ontario, Canada (45.6° N, 75.3° W)

• Paleocoordinates: 8.3° S, 101.2° W (Wright 2013)

• coordinate estimated from map

When: Aylmer Formation, Chazyan (470.0 - 457.3 Ma)

Environment/lithology: marine; limestone

Size classes: macrofossils, mesofossils

Primary reference: P. E. Raymond. 1906. The Chazy Formation and its fauna. Annals of the Carnegie Museum 3(4):498-596 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 172358: authorized by Björn Kröger, entered by Björn Kröger on 05.08.2015

Creative Commons license: CC0 (CC0)

Taxonomic list

Cephalopoda
 Orthocerida - Orthoceratidae
Bivalvia
 Modiomorphida - Modiomorphidae
Modiolopsis parviuscula Billings 1859 clam
Gastropoda
 Euomphalina - Raphistomatidae
Raphistoma stamineum Hall 1847 snail
Rhynchonellata
 Orthida - Plectorthidae
"Hebertella borealis" = Mimella borealis, "Hebertella imperator" = Mimella imperator
"Hebertella borealis" = Mimella borealis Billings 1859
"Hebertella imperator" = Mimella imperator Billings 1859
 Orthida - Plaesiomyidae
"Plaesiomys platys" = Multicostella platys
"Plaesiomys platys" = Multicostella platys Billings 1859
 Rhynchonellida - Trigonirhynchiidae
"Camarotoechia plena" = Rostricellula plena
"Camarotoechia plena" = Rostricellula plena Hall 1847