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 (430.5 - 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 | |
Trilobita | |
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Deiphon grovesi4, Deiphon braybrooki4, Hyrokybe hadnagyi4, Hyrokybe julli4, Hadromeros scotti4, Parayoungia eleyae4, Parayoungia tuberculata4, Sphaerexochus dimorphus4, Contracheirurus zuvegesi4
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Otarion huddyi n. sp.1
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Dicranogmus wilsoni2, Dicranogmus lepidus2, Borealarges variabilis3, Borealarges renodis3, Borealarges fritillus3, Borealarges tuckerae3, Radiolichas guttatus n. sp.2, Dicranopeltis sp.2
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Ceratocephala plummeri, Ceratocephala crawfordi, "Ceratocephalina sevastopuloi" = Ceratocephala (Ceratocephalina), "Xanionurus norfordi" = Radiaspis, Acidaspis lesperancei, Diacanthaspis (Diacanthaspis) hollandi, Leonaspis longstaffei, Leonaspis lenzi, Dudleyaspis quinquespinosa, Dudleyaspis rutteri
Ceratocephala plummeri trilobite
Ceratocephala crawfordi trilobite
"Ceratocephalina sevastopuloi" = Ceratocephala (Ceratocephalina) trilobite
"Xanionurus norfordi" = Radiaspis trilobite
Acidaspis lesperancei trilobite
Diacanthaspis (Diacanthaspis) hollandi trilobite
Leonaspis longstaffei trilobite
Leonaspis lenzi trilobite
Dudleyaspis quinquespinosa trilobite
Dudleyaspis rutteri trilobite | |
Rostroconchia | |
Mulceodens wilsoni7 Johnston and Chatterton 1983 | |
Nehedia bainsi7 Johnston and Chatterton 1983
"Bigalea tercierae" = Redstonia tercierae7 Johnston and Chatterton 1983
"Bigalea buskasi" = Redstonia buskasi7 Johnston and Chatterton 1983 | |
Rhynchonellata | |
Homoeospirella multicostata6 Jin and Chatterton 1997 | |
Nucleospira lentilca6 Havlicek 1990 | |
Whitfieldella sulcatina6 Jin et al. 1993 | |
Merista cuneatina6 Jin and Chatterton 1997 | |
Skenidioides operosa6 Johnson et al. 1976 | |
Spirinella struszi6 Zhang 1989 | |
Flabellitesia kessei6 Boucot et al. 1988
Ptychopleurella lenzi6 Zhang 1989
Ptychopleurella angulaticostata6 Jin and Chatterton 1997 | |
Dicoelosia parvifrons6 Johnson et al. 1976 | |
Isorthis (Arcualla) boreaina6 Zhang 1989 | |
Salopina delta6 Johnson et al. 1976 | |
Atrypoidea latilingulata6 Jin and Chatterton 1997 | |
Atrypa (Gotatrypa) variabilis6, Atrypa (Gotatrypa) blodgetti6, Eospinatrypa bullata6, Plectatrypa unicosta6
Atrypa (Gotatrypa) variabilis6 Johnson et al. 1976
Atrypa (Gotatrypa) blodgetti6 Zhang 1989
Eospinatrypa bullata6 Jin and Chatterton 1997
Plectatrypa unicosta6 Zhang 1989 | |
Spirigerina copperi6 Zhang 1989 | |
Septatrypa zelia6 Barrande 1879 | |
Hercotrema pentaforma6 Lenz 1977
Thebesia crassicostata6 Jin and Chatterton 1997
Rhynchotreta americaniformis6 Zhang 1989 | |
Cymbidium kirki6 Jin and Chatterton 1997
Vosmiverstum breiveli6 Zhang 1989 | |
Gypidula simplex6 Foerste 1909 | |
Strophomenata | |
Morinorhynchus crispus6 Lindström 1861 | |
Pentlandina harperi6 Zhang 1989
Pentlandina lamelliformis6 Jin and Chatterton 1997 | |
"Leptaena depressa" = Leptaena (Leptaena) depressa6
"Leptaena depressa" = Leptaena (Leptaena) depressa6 Sowerby 1824 | |
Jonesea cocksi6 Zhang 1989
Jonesea grayi6 Davidson 1849 |