Where: Ontario, Canada (43.1° N, 81.8° W: paleocoordinates 36.6° S, 28.6° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Arkona Shale Formation, Eifelian to Eifelian (393.3 - 382.7 Ma)
• Listed as Upper Eifelian\Lower Givetian
• formation-level stratigraphic resolution
Environment/lithology: poorly lithified, gray shale and lithified, lenticular, shelly/skeletal limestone
Size classes: macrofossils, mesofossils
Collection methods: Actually five closely-spaced localities by river; sampled approx. 25 feet below top of formation
Primary reference: G. M. Ehlers and E.P. Wright. 1959. Leiopteria rafinesquii Hall and a new species of the genus from the Thedford-Arkona region of southwestern Ontario. Contributions from the Museum of Paleontology 15:1-13 [P. Novack-Gottshall/P. Hearn]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 75583: authorized by Phil Novack-Gottshall, entered by Paul Hearn on 18.10.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Deuteropoda | |
Ostracoda indet. Latreille 1802 ostracod | |
Gastropoda | |
"Platyceras arkonense" = Spinyplatyceras arkonense
"Platyceras arkonense" = Spinyplatyceras arkonense Shimer and Grabau 1902 snail Platyceratoids are coprophagous on crinoids
| |
Bivalvia | |
"Leiopteria ausablensis" = Leptodesma (Leiopteria)
"Leiopteria ausablensis" = Leptodesma (Leiopteria) oyster | |
Lophophorata | |
| |
Rhynchonellata | |
Strophomenata | |
Schuchertella sp. Girty 1904 | |
Chonetes sp. Fischer de Waldheim 1830 | |
Crinoidea | |
Arthroacantha carpenteri Sea lily |