Boulder 15 (Levis): Trempealeauan, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Harpetida
- Heterocaryonidae
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Heterocaryon tuberculatum
Rasetti 1944
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Trilobita
- Olenida
- Loganellidae
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Loganellus similis
Rasetti 1944
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Loganellus macropleurus
Rasetti 1944
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Levisella brevifrons
Rasetti 1944
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Trilobita
- Olenida
- Olenidae
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Bienvillia corax
(Billings 1865)
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Trilobita
- Corynexochida
- Leiostegiidae
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Aposolenopleura dunbari
Raymond 1937
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Aposolenopleura brevifrons
Rasetti 1944
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Trilobita
- Ptychopariida
- Catillicephalidae
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Onchonotus richardsoni
(Walcott 1911)
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Acheilus communis
Rasetti 1944
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Acheilus limbatus
Rasetti 1944
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Trilobita
- Ptychopariida
- Plethopeltidae
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Leiocoryphe occipitalis
Rasetti 1944
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Trilobita
- Asaphida
- Remopleurididae
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Richardsonella unisulcata
Rasetti 1944
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Trilobita
- Asaphida
- Hungaiidae
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Hungaia quadrispinosa
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Agnostida
- Agnostidae
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Agnostus orion
Billings 1860
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Agnostus americanus
Billings 1860
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| recombined as Lotagnostus americanus | |||||||
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Agnostida
- Diplagnostidae
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Pseudagnostus canadensis
(Billings 1860)
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Pseudagnostus gyps
(Clark 1923)
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| see common names | |||||||
Geography
| Country: | Canada | State/province: | Quebec |
| Coordinates: | 46.8° North, 71.2° West (view map) | ||
| Paleocoordinates: | 31.6° South, 70.1° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cambrian | Epoch: | Furongian |
| 10 m.y. bin: | Cambrian 5 | ||
| Key time interval: | Trempealeauan | Trilobite zone: | Hungaia |
| Age range of interval: | 489.20000 - 485.40000 m.y. ago |
Stratigraphy
Lithology and environment
| Primary lithology: | gray lithified sandy "limestone" |
| Lithology description: 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." | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 224136 | ||
| Authorizer: | M. Hopkins | Enterer: | M. Hopkins | Research group: | marine invertebrate |
| Created: | 2022-01-19 12:22:39 | Last modified: | 2022-01-19 12:22:39 |
| Access level: | the public | Released: | 2022-01-19 12:22:39 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 79143. | F. Rasetti. 1944. Upper Cambrian trilobites from the Levis Conglomerate. Journal of Paleontology 18(3):229-258 [M. Hopkins/M. Hopkins] |