Where: Ontario, Canada (43.1° N, 73.4° W: paleocoordinates 25.9° S, 43.9° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Power Glen Formation (Medina Group), Llandovery (443.4 - 433.4 Ma)
• 2 m above lower contact
• bed-level stratigraphic resolution
Environment/lithology: prodelta; lithified, sandy shale and fine-grained sandstone
•overlying a fine grained sandstone
•lens
Size class: macrofossils
Collected by C.R. Clement & J.D. Eckert
Collection methods: quarrying, mechanical
Primary reference: C. E. Brett. 1978. Description and paleoecology of a new Lower Silurian camerate crinoid. Journal of Paleontology 52:91-103 [G. Webster/G. Webster/V. Syverson]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 75225: authorized by Linda Ivany, entered by Patrick Wall on 27.09.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
"Naticonema cf. niagarensis" = Platyostoma niagarensis
"Naticonema cf. niagarensis" = Platyostoma niagarensis Hall 1852 snail | |
Crinoidea | |
Ptychocrinus medinensis Sea lily |