PBDB Collection

Fauna j, Section AV2, Delorme Fm., Mackenzie Mts. (Silurian of Canada)

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

• Grand Cycle 3, middle part.

•SEP environmental call based on given information

• "...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..."

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 26042: authorized by Michael Foote, entered by Michael Foote on 01.10.2002, edited by Melanie Hopkins

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

unclassified
-	Cassawarioides stelcki⁸ Cassawarioides stelcki⁸
Rostroconchia
Conocardiida - Pseudobigaleaidae	Nehedia bainsi⁸, "Bigalea tercierae" = Redstonia tercierae⁸ Nehedia bainsi⁸ Johnston and Chatterton 1983 "Bigalea tercierae" = Redstonia tercierae⁸ Johnston and Chatterton 1983
Conocardiida - Bransoniidae	Mulceodens wilsoni⁸, Mulceodens schneideri⁸ Mulceodens wilsoni⁸ Johnston and Chatterton 1983 Mulceodens schneideri⁸ Johnston and Chatterton 1983
Rhynchonellata
Spiriferida - Reticulariidae	Spirinella struszi⁷ Spirinella struszi⁷ Zhang 1989
Spiriferida - Cyrtiidae	Cyrtia alatiformis⁷, Hedeina sp.⁷, Janius occidentalis⁷ Cyrtia alatiformis⁷ Zhang 1989 Hedeina sp.⁷ Boucot 1957 Janius occidentalis⁷ Boucot et al. 1988
Orthida - Hesperorthidae	Ptychopleurella lenzi⁷, Ptychopleurella angulaticostata⁷, Flabellitesia kessei⁷ Ptychopleurella lenzi⁷ Zhang 1989 Ptychopleurella angulaticostata⁷ Jin and Chatterton 1997 Flabellitesia kessei⁷ Boucot et al. 1988
Orthida - Dicoelosiidae	Dicoelosia parvifons⁷, Epitomyonia amplissima⁷ Dicoelosia parvifons⁷ Epitomyonia amplissima⁷ Zhang 1989
Orthida - Dalmanellidae	Isorthis (Arcualla) microscapha⁷, Isorthis (Arcualla) boreaina⁷ Isorthis (Arcualla) microscapha⁷ Johnson et al. 1976 Isorthis (Arcualla) boreaina⁷ Zhang 1989
Orthida - Draboviidae	Salopina delta⁷ Salopina delta⁷ Johnson et al. 1976
Athyridida - Rhynchospirinidae	Homoeospirella multicostata⁷ Homoeospirella multicostata⁷ Jin and Chatterton 1997
Athyridida - Meristidae	Merista cuneatina⁷ Merista cuneatina⁷ Jin and Chatterton 1997
Athyridida - Meristellidae	Whitfieldella sulcatina⁷ Whitfieldella sulcatina⁷ Jin et al. 1993
Athyridida - Nucleospiridae	Nucleospira lentilca⁷ Nucleospira lentilca⁷ Havlicek 1990
Rhynchonellida - Trigonirhynchiidae	Hercotrema pentaforma⁷, Rhynchotreta americaniformis⁷, Thebesia crassicostata⁷ Hercotrema pentaforma⁷ Lenz 1977 Rhynchotreta americaniformis⁷ Zhang 1989 Thebesia crassicostata⁷ Jin and Chatterton 1997
Atrypida - Septatrypidae	Septatrypa zelia⁷ Septatrypa zelia⁷ Barrande 1879
Atrypida - Atrypidae	Eospinatrypa bullata⁷, Atrypa (Gotatrypa) variabilis⁷, Atrypa (Gotatrypa) blodgetti⁷, Plectatrypa unicosta⁷ Eospinatrypa bullata⁷ Jin and Chatterton 1997 Atrypa (Gotatrypa) variabilis⁷ Johnson et al. 1976 Atrypa (Gotatrypa) blodgetti⁷ Zhang 1989 Plectatrypa unicosta⁷ Zhang 1989
Atrypida - Atrypinidae	Gracianella rudicristata⁷, Spirigerina copperi⁷ Gracianella rudicristata⁷ Jin and Chatterton 1997 Spirigerina copperi⁷ Zhang 1989
Atrypida -	Atrypoidea latilingulata⁷ Atrypoidea latilingulata⁷ Jin and Chatterton 1997
Protorthida - Skenidiidae	Skenidioides operosa⁷ Skenidioides operosa⁷ Johnson et al. 1976
Pentamerida - Gypidulidae	Gypidula simplex⁷ Gypidula simplex⁷ Foerste 1909
Pentamerida - Subrianidae	Cymbidium kirki⁷, Vosmiverstum breiveli⁷ Cymbidium kirki⁷ Jin and Chatterton 1997 Vosmiverstum breiveli⁷ Zhang 1989
Pentamerida - Clorindidae	Clorinda parvolinguifera⁷ Clorinda parvolinguifera⁷ Sapelnikov 1972
Strophomenata
Orthotetida - Chilidiopsidae	Morinorhynchus miniparvicostellus⁷, Morinorhynchus crispus⁷ Morinorhynchus miniparvicostellus⁷ Zhang 1989 Morinorhynchus crispus⁷ Lindström 1861
Strophomenida - Furcitellidae	Pentlandina lamelliformis⁷, Pentlandina harperi⁷ Pentlandina lamelliformis⁷ Jin and Chatterton 1997 Pentlandina harperi⁷ Zhang 1989
Strophomenida - Leptaenoideidae	Liljevallia amorpha⁷ Liljevallia amorpha⁷ Zhang 1989
Strophomenida - Rafinesquinidae	"Leptaena depressa" = Leptaena (Leptaena) depressa⁷, Lepidoleptaena poulseni⁷ "Leptaena depressa" = Leptaena (Leptaena) depressa⁷ Sowerby 1824 Lepidoleptaena poulseni⁷ Kelly 1967
Strophomenida - Strophochonetidae	Shagamella sp.⁷, Protochonetes sp.⁷ Shagamella sp.⁷ Boucot and Harper 1968 Protochonetes sp.⁷ Muir-Wood 1962
Strophomenida - Aegiromenidae	Jonesea grayi⁷, Jonesea cocksi⁷ Jonesea grayi⁷ Davidson 1849 Jonesea cocksi⁷ Zhang 1989
Strophomenida - Strophodontidae	Pholidostrophia (Mesopholidostrophia) lamellosa⁷, "Brachyprion (Protomegastrophia) sp." = Megastrophia (Protomegastrophia)⁷ Pholidostrophia (Mesopholidostrophia) lamellosa⁷ Zhang 1989 "Brachyprion (Protomegastrophia) sp." = Megastrophia (Protomegastrophia)⁷ Caster 1939
Strophomenida - Sowerbyellidae	Eoplectodonta (Eoplectodonta) paucicostellata⁷ Eoplectodonta (Eoplectodonta) paucicostellata⁷ Jin and Chatterton 1997
Trilobita
Lichida - Lichidae	Dicranopeltis sp.³, Radiolichas guttatus³, Borealarges renodis⁴, Borealarges variabilis⁴, Borealarges patulus⁴, Borealarges fritillus n. sp.⁴, Borealarges tuckerae⁴, Dicranogmus wilsoni³, Dicranogmus lepidus³, "Acanthopyge (Lobopyge) sp." = Belenopyge³ Dicranopeltis sp.³ Hawle and Corda 1847 trilobite Radiolichas guttatus³ Campbell and Chatterton 2006 trilobite Borealarges renodis⁴ Campbell and Chatterton 2007 trilobite Borealarges variabilis⁴ Campbell and Chatterton 2007 trilobite Borealarges patulus⁴ Campbell and Chatterton 2007 trilobite Borealarges fritillus n. sp.⁴ Campbell and Chatterton 2007 trilobite Borealarges tuckerae⁴ Adrain 1994 trilobite Dicranogmus wilsoni³ Campbell and Chatterton 2006 trilobite Dicranogmus lepidus³ Campbell and Chatterton 2006 trilobite "Acanthopyge (Lobopyge) sp." = Belenopyge³ Pek and Vanek 1991 trilobite
Odontopleurida - Odontopleuridae	Dudleyaspis quinquespinosa, Dudleyaspis rutteri, Ceratocephala plummeri, Ceratocephala crawfordi, "Ceratocephalina sevastopuloi" = Ceratocephala (Ceratocephalina), Acidaspis lesperancei, Diacanthaspis (Diacanthaspis) hollandi, "Odontopleura brevigena" = Odontopleura (Odontopleura) brevigena, "Xanionurus norfordi" = Radiaspis, Leonaspis longstaffei, Leonaspis lenzi Dudleyaspis quinquespinosa trilobite Dudleyaspis rutteri trilobite Ceratocephala plummeri trilobite Ceratocephala crawfordi trilobite "Ceratocephalina sevastopuloi" = Ceratocephala (Ceratocephalina) trilobite Acidaspis lesperancei trilobite Diacanthaspis (Diacanthaspis) hollandi trilobite "Odontopleura brevigena" = Odontopleura (Odontopleura) brevigena Chatterton and Perry 1983 trilobite "Xanionurus norfordi" = Radiaspis trilobite Leonaspis longstaffei trilobite Leonaspis lenzi trilobite
Proetida - Otarionidae	Otarion huddyi n. sp.¹, Harpidella greggi n. sp.² Otarion huddyi n. sp.¹ Adrain and Chatterton 1994 trilobite Harpidella greggi n. sp.² trilobite
Phacopida - Calymenidae	Calymene polgari⁹, Diacalymene gabrielsi n. sp.⁹ Calymene polgari⁹ Siveter and Chatterton 1996 trilobite C. (s.l.) Diacalymene gabrielsi n. sp.⁹ Siveter and Chatterton 1996 trilobite
Phacopida - Cheiruridae	Hyrokybe hadnagyi⁵, Hyrokybe julli⁵, Deiphon grovesi⁵, Deiphon braybrooki⁵, Contracheirurus sp.⁵, Sphaerexochus dimorphus⁵, Hadromeros scotti⁵, Parayoungia tuberculata⁵, Parayoungia eleyae⁵ Hyrokybe hadnagyi⁵ Chatterton and Perry 1984 trilobite Hyrokybe julli⁵ Chatterton and Perry 1984 trilobite Deiphon grovesi⁵ trilobite Deiphon braybrooki⁵ trilobite Contracheirurus sp.⁵ Chatterton and Perry 1984 trilobite Sphaerexochus dimorphus⁵ Whittington and Evitt 1953 trilobite Hadromeros scotti⁵ trilobite Parayoungia tuberculata⁵ Chatterton and Perry 1984 trilobite Parayoungia eleyae⁵ Chatterton and Perry 1984 trilobite
Phacopida - Encrinuridae	Struszia (Struszia) dimitrovi⁶, Struszia (Avalanchurus) lennoni⁶ Struszia (Struszia) dimitrovi⁶ trilobite Struszia (Avalanchurus) lennoni⁶ trilobite

¹Adrain and Chatterton 1994; ²Adrain and Chatterton 1995; ³Campbell and Chatterton 2006; ⁴Campbell and Chatterton 2007; ⁵Chatterton and Perry 1984; ⁶Edgecombe and Chatterton 1993; ⁷Jin and Chatterton 1997; ⁸Johnston and Chatterton 1983; ⁹Siveter and Chatterton 1996