N of Tamarack Point, Sheguiandah Shale Fm. (Ordovician of Canada)

Where: Ontario, Canada (45.9° N, 82.1° W)

• Paleocoordinates: 12.5° S, 108.0° W (Wright 2013)

• coordinate estimated from map

When: Sheguiandah Formation, Edenian (451.0 - 450.2 Ma)

Environment/lithology: marine; shale

Size classes: macrofossils, mesofossils

Primary reference: A. F. Foerste. 1924. Upper Ordovician faunas of Ontario and Quebec. Geological Survey of Canada Memoir 138(121):1-99 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 173252: authorized by Björn Kröger, entered by Susan Scholze on 14.09.2015, edited by Pete Wagner

Creative Commons license: CC0 (CC0)

Taxonomic list

Ostracoda
 Palaeocopida - Euprimitiidae
Laccoprimitia centralis Ulrich 1890 ostracod
Gastropoda
 Bellerophontida - Sinuitidae
Sinuites cancellatus Hall 1847 snail
 Murchisoniina - Hormotomidae
"Hormotoma angustata" = Hormotoma gracilis angustatus
"Hormotoma angustata" = Hormotoma gracilis angustatus Hall 1847 snail
Hormotoma gracilis angustata
Bivalvia
 Nuculanida - Nuculanidae
Clidophorus tamarackensis Foerste 1924 pointed nut clam
Tergomya
 Cyrtonellida - Cyrtolitidae
"Cyrtolites carinatus" = Paracyrtolites carinatus
"Cyrtolites carinatus" = Paracyrtolites carinatus Miller 1874
Polychaeta
 Cuniculepadida - Lepidocoleidae
Lepidocoleus jamesi Hall and Whitfield 1875 scale worm
Rhynchonellata
 Rhynchonellida - Rhynchotrematidae
Crinoidea
 Homocrinida - Homocrinidae
Drymocrinus manitoulinensis Foerste 1924 Sea lily