Where: Northwest Territories, Canada (62.4° N, 127.0° W)
• Paleocoordinates: 1.4° N, 96.5° W (Wright 2013)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Ozarkodina sagitta zone, Delorme Formation, Wenlock to Wenlock (433.4 - 423.0 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 based on given information
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 26049: authorized by Michael Foote, entered by Michael Foote on 01.10.2002, edited by Melanie Hopkins
Creative Commons license: CC BY (attribution)
Taxonomic list
Strophomenata | |
Morinorhynchus crispus5 Lindström 1861 | |
Rhynchonellata | |
Hesperorthis martinssoni5 Bassett and Cocks 1974
Ptychopleurella lenzi5 Zhang 1989 | |
Dicoelosia diversifrons5 Johnson et al. 1976
Dicoelosia paralata5 Bassett 1972 | |
Isorthis (Arcualla) boreaina5 Zhang 1989
Isorthis (Arcualla) microscapha5 Johnson et al. 1976 | |
Salopina delta5 Johnson et al. 1976 | |
Conchidium microlocularis5 Johnson et al. 1976 | |
Whitfieldella nitida5 Hall 1843 | |
Spirinella struszi5 Zhang 1989 | |
Kozlowskiellina sp.5 Boucot 1958 | |
Rostroconchia | |
Mulceodens wilsoni6 Johnston and Chatterton 1983 | |
Nehedia grovesi6 Johnston and Chatterton 1983 | |
Trilobita | |
Acidaspis jessi, "Diacanthaspis (Acanthalomina) thorsteinssoni" = Acanthalomina
Acidaspis jessi trilobite
"Diacanthaspis (Acanthalomina) thorsteinssoni" = Acanthalomina trilobite | |
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Struszia (Struszia) harrisoni n. sp.4
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Didrepanon delormensis trilobite
Deiphon braybrooki trilobite
Sphaerexochus johnstoni Chatterton and Perry 1984 trilobite |