Decew Falls Section 22.00' (Silurian of Canada)

Where: Ontario, Canada (43.1° N, 79.3° W)

• Paleocoordinates: 26.1° S, 101.7° W (Wright 2013)

• coordinate based on political unit

• basin-level geographic resolution

When: Power Glen Formation, Rhuddanian (443.4 - 440.8 Ma)

• "lower Lland (and mid also)"

• bed-level stratigraphic resolution

Environment/lithology: marine; calcareous sandstone and shale

• "Dk gray to green fissile calcareous to arenaceous shale, interbedded w/ thin grey f to m gr. calc sst. shallow, muddy, probably restricted if fits def. of lingula community. This assemblage was termed a Lingula Community by Ziegler and Boncut, 1970. Fauna is sparsely distributed"

Size class: macrofossils

Primary reference: T. E. Bolton. 1957. Silurian stratigraphy and palæontology of the Niagara escarpment in Ontario. Geological Survey of Canada Memoir 289:1-145 [P. Wagner/P. Wagner/J. Ju]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 173224: authorized by Pete Wagner, entered by Pete Wagner on 13.09.2015

Creative Commons license: CC0 (CC0)

Taxonomic list

• "Bolton, T.E. 1957. Silurian strat and paleo of the Niagara escarpment in Ontario. Canada Seol. Surv Mem. 289, 145p."
Show authors, comments, and common names
Gastropoda
 Euomphalina - Platyceratidae
cf. Platyostoma hemispherica
Bivalvia
 Nuculanida - Nuculanidae
"Ctenodonta elliptica" = Leda elliptica
"Ctenodonta elliptica" = Leda elliptica Goldfuss 1837 pointed nut clam
Stenolaemata
 Cryptostomata - Arthrostylidae
Helopora fragilis
 Trepostomata - Halloporidae
Hallopora cf. magnopora
Rhynchonellata
 Rhynchonellida - Trigonirhynchiidae
Rhynchotreta cf. cabotensis
 Orthida - Dalmanellidae
"Parmorthis eugeniensis" = Resserella
"Parmorthis eugeniensis" = Resserella
Strophomenata
 Orthotetida - Chilidiopsidae
Fardenia plicata