Boulder 15 (Levis) (Cambrian of Canada)
Where: Quebec, Canada (46.8° N, 71.2° W: paleocoordinates 31.6° S, 70.1° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Hungaia trilobite zone, Trempealeauan (492.5 - 485.4 Ma)
Environment/lithology: marine; lithified, gray, sandy limestone
• Fauna is sampled from conglomerate boulders which "usually consist of pure, fine-grained limestone ranging in color from light to dark gray, the latter often assuming a purplish hue. Quartz sand may occur in these limestones, and in a few instances its percentage is so high that the rock might rather be designated as a calcareous sandstone."
Size class: macrofossils
Primary reference: F. Rasetti. 1944. Upper Cambrian trilobites from the Levis Conglomerate. Journal of Paleontology 18(3):229-258 [M. Hopkins/M. Hopkins]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 224136: authorized by Melanie Hopkins, entered by Melanie Hopkins on 19.01.2022
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Trilobita | |
|
Loganellus macropleurus Rasetti 1944 trilobite
Loganellus similis Rasetti 1944 trilobite
Levisella brevifrons Rasetti 1944 trilobite | |
|
Bienvillia corax Billings 1865 trilobite | |
|
Hungaia quadrispinosa trilobite | |
|
Richardsonella unisulcata Rasetti 1944 trilobite | |
|
Acheilus limbatus Rasetti 1944 trilobite
Acheilus communis Rasetti 1944 trilobite
Onchonotus richardsoni Walcott 1911 trilobite | |
|
Leiocoryphe occipitalis Rasetti 1944 trilobite | |
|
Heterocaryon tuberculatum Rasetti 1944 trilobite | |
|
Aposolenopleura brevifrons Rasetti 1944 trilobite
Aposolenopleura dunbari Raymond 1937 trilobite | |
| Artiopoda | |
|
Pseudagnostus gyps Clark 1923
Pseudagnostus canadensis Billings 1860 | |
Agnostus orion, "Agnostus americanus" = Lotagnostus americanus
Agnostus orion Billings 1860
"Agnostus americanus" = Lotagnostus americanus Billings 1860 | |