Fauna j, Section AV1, Delorme Fm., Mackenzie Mts.: Whitwellian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
|
||||||||||
Cassawarioides stelcki
|
Johnston and Chatterton 1983 | |||||||||
Cassawarioides perryi
|
Johnston and Chatterton 1983 | |||||||||
Rostroconchia
- Conocardiida
- Bransoniidae
|
||||||||||
Mulceodens wilsoni
Johnston and Chatterton 1983
|
Johnston and Chatterton 1983 | |||||||||
Rostroconchia
- Conocardiida
- Pseudobigaleaidae
|
||||||||||
Bigalea buskasi
Johnston and Chatterton 1983
|
Johnston and Chatterton 1983 | |||||||||
Bigalea tercierae
Johnston and Chatterton 1983
|
Johnston and Chatterton 1983 | |||||||||
Nehedia bainsi
Johnston and Chatterton 1983
|
Johnston and Chatterton 1983 | |||||||||
Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
|
||||||||||
Rhynchotreta americaniformis
Zhang 1989
|
Jin and Chatterton 1997 | |||||||||
Thebesia crassicostata
Jin and Chatterton 1997
|
Jin and Chatterton 1997 | |||||||||
Hercotrema pentaforma
(Lenz 1977)
|
Jin and Chatterton 1997 | |||||||||
Rhynchonellata
- Atrypida
- Septatrypidae
|
||||||||||
Septatrypa zelia
Barrande 1879
|
Jin and Chatterton 1997 | |||||||||
Rhynchonellata
- Atrypida
- Atrypinidae
|
||||||||||
Spirigerina copperi
Zhang 1989
|
Jin and Chatterton 1997 | |||||||||
Rhynchonellata
- Atrypida
- Atrypidae
|
||||||||||
Plectatrypa unicosta
Zhang 1989
|
Jin and Chatterton 1997 | |||||||||
Eospinatrypa bullata
Jin and Chatterton 1997
|
Jin and Chatterton 1997 | |||||||||
Atrypa (Gotatrypa) variabilis
Johnson et al. 1976
|
Jin and Chatterton 1997 | |||||||||
Atrypa (Gotatrypa) blodgetti
Zhang 1989
|
Jin and Chatterton 1997 | |||||||||
Rhynchonellata
- Atrypida
|
||||||||||
Atrypoidea latilingulata
Jin and Chatterton 1997
|
Jin and Chatterton 1997 | |||||||||
Rhynchonellata
- Orthida
- Hesperorthidae
|
||||||||||
Ptychopleurella angulaticostata
Jin and Chatterton 1997
|
Jin and Chatterton 1997 | |||||||||
Ptychopleurella lenzi
Zhang 1989
|
Jin and Chatterton 1997 | |||||||||
Flabellitesia kessei
(Boucot et al. 1988)
|
Jin and Chatterton 1997 | |||||||||
Rhynchonellata
- Orthida
- Dicoelosiidae
|
||||||||||
Dicoelosia parvifrons
Johnson et al. 1976
|
Jin and Chatterton 1997 | |||||||||
Rhynchonellata
- Orthida
- Dalmanellidae
|
||||||||||
Isorthis (Arcualla) boreaina
Zhang 1989
|
Jin and Chatterton 1997 | |||||||||
Rhynchonellata
- Orthida
- Draboviidae
|
||||||||||
Salopina delta
Johnson et al. 1976
|
Jin and Chatterton 1997 | |||||||||
Rhynchonellata
- Spiriferida
- Cyrtiidae
|
||||||||||
Hedeina sp.
Boucot 1957
|
Jin and Chatterton 1997 | |||||||||
Janius occidentalis
Boucot et al. 1988
|
Jin and Chatterton 1997 | |||||||||
Cyrtia alatiformis
Zhang 1989
|
Jin and Chatterton 1997 | |||||||||
Rhynchonellata
- Spiriferida
- Reticulariidae
|
||||||||||
Spirinella struszi
Zhang 1989
|
Jin and Chatterton 1997 | |||||||||
Rhynchonellata
- Protorthida
- Skenidiidae
|
||||||||||
Skenidioides operosa
Johnson et al. 1976
|
Jin and Chatterton 1997 | |||||||||
Rhynchonellata
- Pentamerida
- Gypidulidae
|
||||||||||
Gypidula simplex
Foerste 1909
|
Jin and Chatterton 1997 | |||||||||
Rhynchonellata
- Pentamerida
- Subrianidae
|
||||||||||
Vosmiverstum breiveli
Zhang 1989
|
Jin and Chatterton 1997 | |||||||||
Cymbidium kirki
Jin and Chatterton 1997
|
Jin and Chatterton 1997 | |||||||||
Rhynchonellata
- Athyridida
- Nucleospiridae
|
||||||||||
Nucleospira lentilca
Havlicek 1990
|
Jin and Chatterton 1997 | |||||||||
Rhynchonellata
- Athyridida
- Meristellidae
|
||||||||||
Whitfieldella sulcatina
Jin et al. 1993
|
Jin and Chatterton 1997 | |||||||||
Rhynchonellata
- Athyridida
- Meristidae
|
||||||||||
Merista cuneatina
Jin and Chatterton 1997
|
Jin and Chatterton 1997 | |||||||||
Rhynchonellata
- Athyridida
- Rhynchospirinidae
|
||||||||||
Homoeospirella multicostata
Jin and Chatterton 1997
|
Jin and Chatterton 1997 | |||||||||
Strophomenata
- Orthotetida
- Chilidiopsidae
|
||||||||||
Morinorhynchus crispus
(Lindström 1861)
|
Jin and Chatterton 1997 | |||||||||
Strophomenata
- Strophomenida
- Rafinesquinidae
|
||||||||||
Leptaena depressa
(Sowerby 1824)
|
Jin and Chatterton 1997 | |||||||||
Strophomenata
- Strophomenida
- Furcitellidae
|
||||||||||
Pentlandina harperi
Zhang 1989
|
Jin and Chatterton 1997 | |||||||||
Pentlandina lamelliformis
Jin and Chatterton 1997
|
Jin and Chatterton 1997 | |||||||||
Strophomenata
- Strophomenida
- Aegiromenidae
|
||||||||||
Jonesea grayi
(Davidson 1849)
|
Jin and Chatterton 1997 | |||||||||
Jonesea cocksi
Zhang 1989
|
Jin and Chatterton 1997 | |||||||||
Trilobita
- Proetida
- Otarionidae
|
||||||||||
Otarion huddyi n. sp.
Adrain and Chatterton 1994
|
Adrain and Chatterton 1994 | |||||||||
Trilobita
- Phacopida
- Encrinuridae
|
||||||||||
Struszia (Struszia) dimitrovi
|
Edgecombe and Chatterton 1993 | |||||||||
Struszia (Avalanchurus) lennoni
|
Edgecombe and Chatterton 1993 | |||||||||
Trilobita
- Phacopida
- Cheiruridae
|
||||||||||
Parayoungia eleyae
Chatterton and Perry 1984
|
Chatterton and Perry 1984 | |||||||||
Parayoungia tuberculata
Chatterton and Perry 1984
|
Chatterton and Perry 1984 | |||||||||
Deiphon grovesi
|
Chatterton and Perry 1984 | |||||||||
Deiphon braybrooki
|
Chatterton and Perry 1984 | |||||||||
Sphaerexochus dimorphus
Whittington and Evitt 1953
|
Chatterton and Perry 1984 | |||||||||
Contracheirurus zuvegesi
|
Chatterton and Perry 1984 | |||||||||
Hyrokybe julli
Chatterton and Perry 1984
|
Chatterton and Perry 1984 | |||||||||
Hyrokybe hadnagyi
Chatterton and Perry 1984
|
Chatterton and Perry 1984 | |||||||||
Hadromeros scotti
|
Chatterton and Perry 1984 | |||||||||
Trilobita
- Phacopida
- Calymenidae
|
||||||||||
Calymene polgari n. sp.
Siveter and Chatterton 1996
|
Siveter and Chatterton 1996 | |||||||||
C. (s.l.) | ||||||||||
Diacalymene gabrielsi
Siveter and Chatterton 1996
|
Siveter and Chatterton 1996 | |||||||||
Trilobita
- Odontopleurida
- Odontopleuridae
|
||||||||||
Ceratocephala plummeri
|
||||||||||
Ceratocephala crawfordi
|
||||||||||
Ceratocephalina sevastopuloi
|
||||||||||
Dudleyaspis quinquespinosa
|
||||||||||
Dudleyaspis rutteri
|
||||||||||
Diacanthaspis (Diacanthaspis) hollandi
|
||||||||||
Leonaspis longstaffei
|
||||||||||
Leonaspis lenzi
|
||||||||||
Xanionurus norfordi
|
||||||||||
Acidaspis lesperancei
|
||||||||||
Trilobita
- Lichida
- Lichidae
|
||||||||||
Dicranopeltis sp.
Hawle and Corda 1847
|
Campbell and Chatterton 2006 | |||||||||
Radiolichas guttatus n. sp.
Campbell and Chatterton 2006
|
Campbell and Chatterton 2006 | |||||||||
Dicranogmus wilsoni
Campbell and Chatterton 2006
|
Campbell and Chatterton 2006 | |||||||||
Dicranogmus lepidus
Campbell and Chatterton 2006
|
Campbell and Chatterton 2006 | |||||||||
Borealarges variabilis
Campbell and Chatterton 2007
|
Campbell and Chatterton 2007 | |||||||||
Borealarges renodis
Campbell and Chatterton 2007
|
Campbell and Chatterton 2007 | |||||||||
Borealarges tuckerae
Adrain 1994
|
Campbell and Chatterton 2007 | |||||||||
Borealarges fritillus
Campbell and Chatterton 2007
|
Campbell and Chatterton 2007 | |||||||||
see common names |
Geography
Country: | Canada | State/province: | Northwest Territories |
Coordinates: | 62.4° North, 127.0° West (view map) | ||
Paleocoordinates: | 4.7° North, 49.3° West | ||
Basis of coordinate: | estimated from map | ||
Geographic resolution: | outcrop |
Time
Period: | Silurian | ||
10 m.y. bin: | Silurian 2 | *Epoch: | Early/Lower Wenlock |
Key time interval: | Whitwellian | Zone: | Kockelella patula |
Age range of interval: | 430.5 - 429.7 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Delorme | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: 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.) |
Lithology and environment
Primary lithology: | argillaceous "limestone" | ||
Secondary lithology: | "shale" | ||
Lithology description: "...sequence of buff and light brown weathering, thinly bedded limestones, dolomites and shales that overlie the Whittaker Formation and underlie the Camsell Formation...The beds above and including a distinctive buff-brown shale unit in the sections near Avalanche Lake are included in the Delorme Formation in this work, although the lowest buff-brown shaly beds (below distinctive orange coloured limestones and dolomites) could be regarded as transitional between the Road River and Delorme..." | |||
Environment: | slope | Tectonic setting: | passive margin |
Glacial or sequence phase: | highstand systems tract | ||
Geology comments: Grand Cycle 3, middle part.
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 |
Taphonomy
Modes of preservation: | replaced with silica |
Collection methods and comments
Collection excludes: | some macrofossils |
Reason for describing collection: | taxonomic analysis |
Metadata
Database number: | 26035 | ||
Authorizer: | M. Foote, M. Hopkins | Enterer: | M. Foote, M. Hopkins |
Modifier: | P. Wagner | Research group: | marine invertebrate |
Created: | 2002-10-01 09:54:12 | Last modified: | 2007-04-10 16:36:39 |
Access level: | the public | Released: | 2002-10-01 09:54:12 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
7215. | 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] |
Secondary references:
7226 | J. M. Adrain and B. D. E. Chatterton. 1994. The aulacopleurid trilobite Otarion, with new species from the Silurian of northwestern Canada. Journal of Paleontology 68(2):305-323 [M. Foote/M. Foote/M. Foote] | |
63116 | M. J. Campbell and B. D. E. Chatterton. 2006. Late Ordovician and Silurian lichid trilobites from northwestern Canada: eight new species from subfamilies Lichinae, Platylichinae, and Trochurinae. Journal of Paleontology 80(3):514-528 [M. Hopkins/M. Hopkins] | |
25908 | M. J. Campbell and B. D. E. Chatterton. 2007. Late Ordovician and Silurian lichid trilobites from Northwestern Canada: Hemiarges, Borealarges, and Richterarges. Journal of Paleontology 81(6):1348-1364 [P. Wagner/P. Wagner/P. Wagner] | |
7216 | B. D. E. Chatterton and D. G. Perry. 1984. Silurian cheirurid trilobites from the Mackenzie Mountains, northwestern Canada. Palaeontographica Abteilung A 184(1-4):1-78 [M. Foote/M. Foote/M. Foote] | |
7220 | G. D. Edgecombe and B. D. E. Chatterton. 1993. Silurian (Wenlock-Ludlow) encrinurine trilobites from the Mackenzie Mountains, Canada, and related species. Palaeontographica Abteilung A 229(4-6):75-112 [M. Foote/M. Foote/M. Foote] | |
7218 | J. Jin and B. D. E. Chatterton. 1997. Latest Ordovician-Silurian articulate brachiopods and biostratigraphy of the Avalanche Lake area, southwestern District of Mackenzie, Canada. Palaeontographica Canadiana 13:1-62 [M. Foote/M. Foote/M. Foote] | |
7221 | D. I. Johnston and B. D. E. Chatterton. 1983. Some silicified Middle Silurian rostroconchs (Mollusca) from the Mackenzie Mountains, N.W.T., Canada. Canadian Journal of Earth Sciences 20:844-858 [M. Foote/M. Foote/M. Foote] | |
7217 | D. J. Siveter and B. D. E. Chatterton. 1996. Silicified calymenid trilobites from the Mackenzie Mountains, northwest Canada. Palaeontographica Abteilung A 239(1-3):43-60 [M. Foote/M. Foote/M. Foote] |