Where: Northwest Territories, Canada (62.4° N, 127.0° W: paleocoordinates 4.7° N, 49.3° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Kockelella patula zone, Delorme Formation, Whitwellian (426.2 - 425.4 Ma)
• Zonation based on conodonts present in AV sections 1, 2, and 4. (AV 3 and DR sections correlated with these on basis of trilobite faunal assemblages.)
• group of beds-level stratigraphic resolution
Environment/lithology: slope; argillaceous limestone and shale
•SEP environmental call: This sample, as listed, is environmentally heterogeneous. It contains both basinal sicliclastic and carbonate slope deposits. I have assigned the environment based on where the majority of individual collections were derived
Preservation: replaced with silica
Primary reference: B. D. E. Chatterton and D. G. Perry. 1983. Silicified Silurian odontopleurid trilobites from the Mackenzie Mountains. Palaeontographica Canadiana 1:1-55 [M. Foote/M. Foote/M. Foote]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 26035: authorized by Michael Foote, entered by Michael Foote on 01.10.2002, edited by Melanie Hopkins
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Rostroconchia | |
Mulceodens wilsoni7 Johnston and Chatterton 1983 | |
Nehedia bainsi7 Johnston and Chatterton 1983
"Bigalea buskasi" = Redstonia buskasi7 Johnston and Chatterton 1983
"Bigalea tercierae" = Redstonia tercierae7 Johnston and Chatterton 1983 | |
Strophomenata | |
Morinorhynchus crispus6 Lindström 1861 | |
Jonesea grayi6 Davidson 1849
Jonesea cocksi6 Zhang 1989 | |
Pentlandina lamelliformis6 Jin and Chatterton 1997
Pentlandina harperi6 Zhang 1989 | |
"Leptaena depressa" = Leptaena (Leptaena) depressa6
"Leptaena depressa" = Leptaena (Leptaena) depressa6 Sowerby 1824 | |
Rhynchonellata | |
Rhynchotreta americaniformis6 Zhang 1989
Thebesia crassicostata6 Jin and Chatterton 1997
Hercotrema pentaforma6 Lenz 1977 | |
Flabellitesia kessei6 Boucot et al. 1988
Ptychopleurella angulaticostata6 Jin and Chatterton 1997
Ptychopleurella lenzi6 Zhang 1989 | |
Dicoelosia parvifrons6 Johnson et al. 1976 | |
Isorthis (Arcualla) boreaina6 Zhang 1989 | |
Salopina delta6 Johnson et al. 1976 | |
Skenidioides operosa6 Johnson et al. 1976 | |
Septatrypa zelia6 Barrande 1879 | |
Spirigerina copperi6 Zhang 1989 | |
Atrypoidea latilingulata6 Jin and Chatterton 1997 | |
Eospinatrypa bullata6, Plectatrypa unicosta6, Atrypa (Gotatrypa) blodgetti6, Atrypa (Gotatrypa) variabilis6
Eospinatrypa bullata6 Jin and Chatterton 1997
Plectatrypa unicosta6 Zhang 1989
Atrypa (Gotatrypa) blodgetti6 Zhang 1989
Atrypa (Gotatrypa) variabilis6 Johnson et al. 1976 | |
Gypidula simplex6 Foerste 1909 | |
Cymbidium kirki6 Jin and Chatterton 1997
Vosmiverstum breiveli6 Zhang 1989 | |
Spirinella struszi6 Zhang 1989 | |
Homoeospirella multicostata6 Jin and Chatterton 1997 | |
Nucleospira lentilca6 Havlicek 1990 | |
Merista cuneatina6 Jin and Chatterton 1997 | |
Whitfieldella sulcatina6 Jin et al. 1993 | |
Trilobita | |
Radiolichas guttatus n. sp.2, Borealarges variabilis3, Borealarges renodis3, Borealarges tuckerae3, Borealarges fritillus3, Dicranogmus lepidus2, Dicranogmus wilsoni2, Dicranopeltis sp.2
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Otarion huddyi n. sp.1
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Acidaspis lesperancei, "Xanionurus norfordi" = Radiaspis, Diacanthaspis (Diacanthaspis) hollandi, Leonaspis longstaffei, Leonaspis lenzi, Dudleyaspis quinquespinosa, Dudleyaspis rutteri, Ceratocephala plummeri, Ceratocephala crawfordi, "Ceratocephalina sevastopuloi" = Ceratocephala (Ceratocephalina)
Acidaspis lesperancei trilobite
"Xanionurus norfordi" = Radiaspis trilobite
Diacanthaspis (Diacanthaspis) hollandi trilobite
Leonaspis longstaffei trilobite
Leonaspis lenzi trilobite
Dudleyaspis quinquespinosa trilobite
Dudleyaspis rutteri trilobite
Ceratocephala plummeri trilobite
Ceratocephala crawfordi trilobite
"Ceratocephalina sevastopuloi" = Ceratocephala (Ceratocephalina) trilobite | |
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Deiphon grovesi4, Deiphon braybrooki4, Hadromeros scotti4, Hyrokybe hadnagyi4, Hyrokybe julli4, Contracheirurus zuvegesi4, Parayoungia eleyae4, Parayoungia tuberculata4, Sphaerexochus dimorphus4
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