Beaconsfield Mbr., upper Laval Fm. (Ordovician of Canada)
Where: Quebec, Canada (45.6° N, 74.0° W: paleocoordinates 27.8° S, 56.2° W)
• coordinate based on political unit
When: Beaconsfield Member (Laval Formation), Chazyan (470.0 - 457.3 Ma)
• "M.Ord. Chazyon"
• member-level stratigraphic resolution
Environment/lithology: shallow subtidal; argillaceous, silty limestone and shale
• "65 ft. of argillaceous, fine grained dolomitic ls w/ greenish-gray silty shale; irregular bedding, ripple marks, some Scolithos- overlain by Pamelia Ss. Nearshore BA2?"
Size class: macrofossils
Primary reference: H. J. Hofmann. 1963. Ordovician Chazy Group in southern Quebec. AAPG Bulletin 47:270-301 [M. Uhen/J. Ju/M. Uhen]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 310: authorized by Jack Sepkoski, entered by Mike Sommers on 20.11.1998, edited by Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
• "Hofmann, 1963"
Show authors, comments, and common names
| Crinoidea | |
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| Lingulata | |
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Lingulella sp. Salter 1866
Palaeoglossa sp. Cockerell 1911 | |
| Strophomenata | |
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Glyptomena sp. Cooper 1956 | |
| Rhynchonellata | |
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Rostricellula sp. Ulrich and Cooper 1942 | |
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Valcourea sp. Raymond 1911 | |
| Stenolaemata | |
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Stictopora sp. Hall 1847 | |
| Cephalopoda | |
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Michelinoceras sp. Foerste 1932 | |
| Gastropoda | |
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Lophospiridae indet. Wenz 1938 snail | |
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Raphistoma sp. Hall 1847 snail | |
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Helicotoma sp. Salter 1859 snail | |
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| Bivalvia | |
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Ctenodonta sp. Salter 1852 clam | |
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Modiolopsis sp. Hall 1847 clam | |
| Trilobita | |
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