Twenhofel’s 1909 Coast Section, Arisaig. Straits of Northumberland (Silurian of Canada)

Where: Nova Scotia, Canada (45.8° N, 62.2° W: paleocoordinates 31.7° S, 25.7° W)

• outcrop-level geographic resolution

When: Stonehouse Formation, Pridoli (423.0 - 419.2 Ma)

• formation-level stratigraphic resolution

Environment/lithology: red shale and gray, green, blue, calcareous limestone

• Red shales and limestones with grayish-blue splintery flags dotted with very bright green patches. In the flags the fossil occur in thin calcaerous layers attached to their undersides.

Size class: macrofossils

Preservation: cast, mold/impression

Reposited in the GSC, YPM

Primary reference: J. S. Peel. 1977. Systematics and palaeontology of the Silurian gastropods of the Arisaig Group. Det Kongelige Danske Videnskabernes Selskab Biologiske Skrifter 21(1):1-89 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 155398: authorized by Pete Wagner, entered by Pete Wagner on 11.04.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Murchisoniina - Murchisoniidae
"Murchisonia (Murchisonia) aciculata" = Murchisonia aciculata
"Murchisonia (Murchisonia) aciculata" = Murchisonia aciculata Hall 1860 snail
 Bellerophontida - Bellerophontidae
Anapetopsis maclearni n. sp.2 Peel 1975 snail
 Bellerophontida - Plectonotidae
"Plectonotus cherylae" = Plectonotoides cherylae1, Tritonophon kivitalonae n. sp.1
"Plectonotus cherylae" = Plectonotoides cherylae1 Peel 1974 snail
Tritonophon kivitalonae n. sp.1 Peel 1974 snail
 Euomphalina - Platyceratidae
"Platyceras (Platyostoma) cornutum" = Platyostoma cornutum
"Platyceras (Platyostoma) cornutum" = Platyostoma cornutum Hisinger 1837 snail