Rohr 00R015. Laignet Point (Ordovician of Canada)

Also known as = 2000F026 = G of Williams et al. 1987 (pg. 458 f. 2) = 1984F121

Where: Newfoundland and Labrador, Canada (50.7° N, 57.4° W: paleocoordinates 30.6° S, 46.7° W)

• outcrop-level geographic resolution

When: Benthamaspis gibberula trilobite zone, Laignet Point Member (Catoche Formation), Cassinian (482.3 - 470.0 Ma)

• Uppermost mound bed, 97.3 m above base of formation

• formation-level stratigraphic resolution

Environment/lithology: limestone

Size class: macrofossils

Reposited in the GSC

Primary reference: D. M. Rohr, W. D. Boyce, and E. A. Measures. 2008. The rostroconch mollusc Euchasma Billings, 1865 from the Lower Ordovician Catoche Formation, western Newfoundland. Newfoundland Department of Mines and Energy, Report 08(1):79-91 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 133140: authorized by Pete Wagner, entered by Pete Wagner on 03.09.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Pterobranchia
 Graptoloidea - Phyllograptidae
Trilobita
 Asaphida - Asaphidae
Isoteloides canalis Whitfield 1886 trilobite
 Proetida - Bathyuridae
"Jeffersonia angustimarginata" = Jeffersonia jenni, Jeffersonia timon, Petigurus nero, Benthamaspis gibberula, Bathyurellus abruptus, Bathyurellus platypus, "Grinnellaspis flabelliformis" = Punka flabelliformis, "Uromystrum marginatus" = Uromystrum marginiatus
"Jeffersonia angustimarginata" = Jeffersonia jenni Cullison 1944 trilobite
Jeffersonia timon Billings 1865 trilobite
Petigurus nero Billings 1865 trilobite
Benthamaspis gibberula Billings 1865 trilobite
Bathyurellus abruptus Billings 1865 trilobite
Bathyurellus platypus Fortey 1979 trilobite
"Grinnellaspis flabelliformis" = Punka flabelliformis Fortey 1979 trilobite
"Uromystrum marginatus" = Uromystrum marginiatus Billings 1865 trilobite
 Proetida - Dimeropygidae
Ischyrotoma anataphra Fortey 1979 trilobite
 Phacopida - Pliomeridae
Strotactinus insularis Billings 1865 trilobite
Gastropoda
 Murchisoniina - Hormotomidae
Plethospira aff. cassina Whitfield 1886 snail
 Euomphalina - Macluritidae
Maclurites sp. Le Sueur 1818 snail
Rostroconchia
 Conocardiida - Eopteriidae
Euchasma blumenbachi Billings 1859