PBDB Collection

Brachiopods, Cape Phillips Formation, GSC C12273, Baillie-Hamilton Island (Silurian of Canada)

Where: Nunavut, Canada (75.8° N, 94.5° W: paleocoordinates 3.5° N, 32.7° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Monograptus riccartonensis zone, Cape Phillips Formation, Sheinwoodian (433.4 - 430.5 Ma)

• According to author, material is from between the murchisoni and lundgreni zones. This would make it Sheinwoodian, although author simply refers to it as Wenlockian.

• formation-level stratigraphic resolution

Environment/lithology: slope; shelly/skeletal limestone and calcareous shale

• "...Formation...represents the slope-to-basinal facies equivalent of coeval platform carbonates that occur to S and E..."

•SEP environmental call based on given info and regional context

• "..Formation consists of shale and thin bedded, laminated siltstone and limestone...Section [with faunas] broadly divisible into two lithofacies: a lower part about 25 m thick, consists mainly of medium grey, thin bedded argillaceous Lst that is variably dolomitic...and an upper part, about 65 m thick, consisting mainly of very dark grey, very thin bedded argillaceous Lst that is markedly bituminous and commonly planar laminated...These beds appear to represent sediment gravity flows that were derived from platform carbonates...some 10 km to the east. The brachiopods and conodonts were obtained from the bioclastic beds and are therefore presumed to be allochthonous."

Preservation: replaced with silica

Reposited in the GSC

Primary reference: N. Zhang. 1989. Wenlockian (Silurian) brachiopods of the Cape Phillips Formation, Baillie Hamilton Island, Arctic Canada: part I. Palaeontographica Abteilung A 206(1-3):49-97 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 26013: authorized by Michael Foote, entered by Michael Foote on 30.09.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• List in Part I of monograph (PBDB ref. 7205) covers all the brachiopods, whereas the systematic treatment is spread out through three parts (refs. 7205-7207).

Show authors, comments, and common names

unclassified
-	Visbeylla visbyensis Visbeylla visbyensis
Rhynchonellata
Atrypida - Glassiidae	? Glassia "sp. 1" ? Glassia "sp. 1" Davidson 1881
Atrypida - Punctatrypidae	Reticulatrypa blodgetti, Reticulatrypa variabilis Reticulatrypa blodgetti Reticulatrypa variabilis
Atrypida - Atrypinidae	Gracianella dimorpha, Spirigerina copperi Gracianella dimorpha Forms 1 and 2 Spirigerina copperi Zhang 1989
Atrypida - Atrypidae	Eospinatrypa bassetti, Plectatrypa unicosta, "? Eospinatrypa savagei" = Plectatrypa savagei Eospinatrypa bassetti Plectatrypa unicosta Zhang 1989 "? Eospinatrypa savagei" = Plectatrypa savagei Zhang 1989
Atrypida - Lissatrypidae	Lissatrypa cf. atheroidea Lissatrypa cf. atheroidea Twenhofel 1914
Spiriferida - Cyrtiidae	Janius occidentalis, Hedeina sp., Plicocyrtia jonesi, Cyrtia alatiformis Janius occidentalis Boucot et al. 1988 Hedeina sp. Boucot 1957 Plicocyrtia jonesi Cyrtia alatiformis Zhang 1989
Spiriferida - Adolfiidae	Spurispirifer hughesi Spurispirifer hughesi
Spiriferida - Ambocoeliidae	Plicoplasia cf. acutiplicata Plicoplasia cf. acutiplicata
Spiriferida - Delthyrididae	Howellella sp. Howellella sp. Kozlowski 1946
Spiriferida - Reticulariidae	Spirinella struszi Spirinella struszi Zhang 1989
Protorthida - Skenidiidae	Skenidioides operosa Skenidioides operosa Johnson et al. 1976
Orthida - Hesperorthidae	Ptychopleurella lenzi, Flabellitesia kessei Ptychopleurella lenzi Zhang 1989 Flabellitesia kessei Boucot et al. 1988
Orthida - Wangyuiidae	Wangyuia thorsteinssoni Wangyuia thorsteinssoni Zhang 1989
Orthida - Draboviidae	Salopina gamma, Salopina carinata, Salopina robitaillensis, Hirnantia cf. sagittifera Salopina gamma Salopina carinata Salopina robitaillensis Hirnantia cf. sagittifera McCoy 1851
Orthida - Dalmanellidae	Resserella canalis, Isorthis jini, Isorthis walmsleyi, Isorthis sulcata Resserella canalis Sowerby 1839 Isorthis jini Isorthis walmsleyi Isorthis sulcata
Orthida - Rhipidomellidae	Pseudomendacella boucoti, Dalejina parahanusi Pseudomendacella boucoti Dalejina parahanusi
Orthida - Dicoelosiidae	Epitomyonia clausula, Epitomyonia amplissima, Dicoelosia bailliehamiltonensis Epitomyonia clausula Johnson et al. 1976 Epitomyonia amplissima Zhang 1989 Dicoelosia bailliehamiltonensis
Rhynchonellida - Rhynchotrematidae	Stegerhynchus angaciensis, Stegerhynchus estonicus Stegerhynchus angaciensis Stegerhynchus estonicus Rubel 1977
Rhynchonellida - Trigonirhynchiidae	Thebesia cf. thebesensis, Rhynchotreta americaniformis, "Ancillotoechia" sheehani Thebesia cf. thebesensis Foerste 1909 Rhynchotreta americaniformis Zhang 1989 "Ancillotoechia" sheehani
Athyridida - Meristidae	Merista sp. Merista sp. Suess 1851
Athyridida - Nucleospiridae	Nucleospira cf. raritas Nucleospira cf. raritas
Pentamerida - Gypidulidae	Amsdenina amsdeni, Caryogyps grayi, Caryogyps chattertoni Amsdenina amsdeni Caryogyps grayi Zhang 1989 Caryogyps chattertoni Zhang 1989
Pentamerida - Subrianidae	Cymbidium sp., Vosmiverstum breiveli, Spondylopyxis potteri, Conchidium cf. microlocularis Cymbidium sp. Kirk 1926 Vosmiverstum breiveli Zhang 1989 Spondylopyxis potteri Conchidium cf. microlocularis Johnson et al. 1976
Pentamerida - Clorindidae	Barrandina sp., Antirhynchonella sp., Clorinda sp. Barrandina sp. Antirhynchonella sp. Oehlert 1887 Clorinda sp. Barrande 1879
Pentamerida - Parastrophinidae	"Grayina cf. magnifica" = Anastrophia (Grayina) "Grayina cf. magnifica" = Anastrophia (Grayina)
Strophomenata
Orthotetida - Chilidiopsidae	Morinorhynchus miniparvicostellus, Morinorhynchus crispus Morinorhynchus miniparvicostellus Zhang 1989 Morinorhynchus crispus Lindström 1861
Orthotetida - Triplesiidae	Cliftonia contorta Cliftonia contorta
Strophomenida - Sowerbyellidae	"Paranisopleurella cooperi" = Eoplectodonta (Ygerodiscus) "Paranisopleurella cooperi" = Eoplectodonta (Ygerodiscus)
Strophomenida - Aegiromenidae	"Aegiria grayi" = Jonesea grayi, ? Chonetoidea cocksi "Aegiria grayi" = Jonesea grayi Davidson 1849 ? Chonetoidea cocksi
Strophomenida - Rafinesquinidae	Leptaena "Form 1", Leptaena "Form 2" Leptaena "Form 1" Dalman 1828 Leptaena "Form 2" Dalman 1828
Strophomenida - Leptaenoideidae	Liljevallia amorpha Liljevallia amorpha Zhang 1989
Strophomenida - Furcitellidae	Pentlandina harperi Pentlandina harperi Zhang 1989
Ostracoda
Palaeocopida -	Severella arctosulcata Severella arctosulcata Zhang 1989 ostracod