Snake Island (Devonian of Canada)

Where: Manitoba, Canada (51.6° N, 99.8° W: paleocoordinates 22.8° S, 36.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Manitoba Limestone Formation, Early/Lower Givetian (388.1 - 383.7 Ma)

• "M. Dev (basal Givetian)"

Environment/lithology: open shallow subtidal; gray limestone

• "ls, in part ripple marked, bioclastic; grayish brown fissile ls (80') shallow? BA1. cratonic"

Size classes: macrofossils, mesofossils

Primary reference: E. Kindle. 1914. The Silurian and Devonian section of western Manitoba. Geological Survey of Canada Summary Report 1912:247-261 [P. Wagner/P. Wagner/M. Clapham]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 624: authorized by Jack Sepkoski, entered by Mike Sommers on 06.04.1999, edited by Matthew Clapham and Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• "E.M. Kindle, 1914. The Sil and Dev section of western Manitoba. Geol. Surv. Canada, Sum. Rpt. 1912, p.247-261"
Anthozoa
 Stauriida - Cyathophyllidae
Cyathophyllum vermiculare horn coral
Cyathophyllum vermiculare var. precursor
 Favositida - Alveolitidae
Alveolites vallorum tabulate coral
Heteractinida
 Octactinellida - Astraeospongiidae
"Astraeospongia hamiltonensis" = Astraeospongium
"Astraeospongia hamiltonensis" = Astraeospongium
Placodermi
 Arthrodira - Dinichthyidae
Dinichthys canadensis Whiteaves 1892 armour-plated fish
Rhynchonellata
 Atrypida - Atrypidae
 Spiriferinida - Cyrtinidae
 Orthida - Schizophoriidae
Schizophoria striatula von Schlotheim 1813
Bivalvia
 Lucinida - Mactromyidae
Paracyclas elliptica Hall 1843 clam
Cephalopoda
 Oncocerida - Brevicoceratidae
"Gyroceras submamilatum" = Naedyceras
"Gyroceras submamilatum" = Naedyceras
 Oncocerida -
Gastropoda
 Bellerophontida -
""Bellerophontoidea" indet." = Bellerophontoidea
""Bellerophontoidea" indet." = Bellerophontoidea M'Coy 1851 snail
 Murchisoniina - Gosseletinidae
"Raphistoma tyrrelli" = Buechelia tyrrelli, "Euomphalus subtrigonalis" = Ibergia subtrigonalis
"Raphistoma tyrrelli" = Buechelia tyrrelli Whiteaves 1892 snail
"Euomphalus subtrigonalis" = Ibergia subtrigonalis Whiteaves 1892 snail
 Euomphalina - Omphalocirridae
Omphalocirrus manitobensis Whiteaves 1890 snail