GSC C-22184, Baillie-Hamilton Is.: Sheinwoodian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
"Lepterditia" hisingeri
1 specimen
Fascizentina rohri
Zhang 1989 61 specimens
Craniata - Trimerellida - Trimerellidae
Trimerella sp. Billings 1862
Zhang 1989 10 specimens
Strophomenata - Orthotetida - Triplesiidae
Cliftonia contorta
Zhang 1989 5 specimens
Strophomenata - Orthotetida - Chilidiopsidae
Morinorhynchus miniparvicostellus Zhang 1989
Zhang 1989 45 specimens
Morinorhynchus crispus (Lindström 1861)
Zhang 1989 231 specimens
Strophomena crispa
Strophomenata - Strophomenida - Sowerbyellidae
Paranisopleurella cooperi
Zhang 1989 102 specimens
synonym of Eoplectodonta (Ygerodiscus)
Strophomenata - Strophomenida - Aegiromenidae
? Chonetoidea cocksi
Zhang 1989 40 specimens
Aegiria grayi (Davidson 1849)
Zhang 1989 142 specimens
recombined as Jonesea grayi
Strophomenata - Strophomenida - Strophodontidae
Mesopholidostrophia lamellosa Zhang 1989
Zhang 1989 425 specimens
Strophomenata - Strophomenida - Eopholidostrophiidae
Mesopholidostrophia granti
Zhang 1989 83 specimens
Strophomenata - Strophomenida - Furcitellidae
Pentlandina harperi Zhang 1989
Zhang 1989 23 specimens
? Laevicyphomena sp.
Zhang 1989 6 specimens
Strophomenata - Strophomenida - Leptaenoideidae
Liljevallia amorpha Zhang 1989
Zhang 1989 241 specimens
Strophomenata - Strophomenida - Amphistrophiidae
Amphistrophia sp. Hall and Clarke 1892
Zhang 1989 15 specimens
Strophomenata - Strophomenida - Rafinesquinidae
Leptaena informal Form 1
Zhang 1989 32 specimens
Leptaena informal Form 2
Zhang 1989 25 specimens
Rhynchonellata - Pentamerida - Parastrophinidae
Grayina cf. magnifica
Zhang 1989 22 specimens
spelled with current rank as Anastrophia (Grayina)
Rhynchonellata - Pentamerida - Gypidulidae
Amsdenina amsdeni
Zhang 1989 197 specimens
Caryogyps grayi Zhang 1989
Zhang 1989 8 specimens
Caryogyps chattertoni Zhang 1989
Zhang 1989 12 specimens
Rhynchonellata - Pentamerida - Clorindidae
Clorinda sp. Barrande 1879
Zhang 1989 22 specimens
? Clorinda sp. Barrande 1879
Zhang 1989 6 specimens
Barrandina sp.
Zhang 1989 11 specimens
Antirhynchonella sp. Oehlert 1887
Zhang 1989 4 specimens
Rhynchonellata - Pentamerida - Pentameridae
? Rhipidium sp. Schuchert and Cooper 1931
Zhang 1989 2 specimens
Rhynchonellata - Pentamerida - Subrianidae
Spondylopyxis potteri
Zhang 1989 31 specimens
Rhynchonellata - Spiriferida - Delthyrididae
Howellella sp. Kozlowski 1946
Zhang 1989 6 specimens
Rhynchonellata - Spiriferida - Reticulariidae
Spirinella struszi Zhang 1989
Zhang 1989 363 specimens
Rhynchonellata - Spiriferida - Adolfiidae
Spurispirifer hughesi
Zhang 1989 228 specimens
Rhynchonellata - Spiriferida - Ambocoeliidae
Plicoplasia cf. acutiplicata
Zhang 1989 127 specimens
Rhynchonellata - Spiriferida - Cyrtiidae
Cyrtia alatiformis Zhang 1989
Zhang 1989 16 specimens
Cyrtia alatiformis Zhang 1989
Zhang 1989 16 specimens
Plicocyrtia jonesi
Zhang 1989 44 specimens
Janius occidentalis Boucot et al. 1988
Zhang 1989 120 specimens
Hedeina sp. Boucot 1957
Zhang 1989 25 specimens
Rhynchonellata - Athyridida - Meristidae
Merista sp. Suess 1851
Zhang 1989 1 specimen
Rhynchonellata - Athyridida - Nucleospiridae
Nucleospira cf. raritas
Zhang 1989 111 specimens
Rhynchonellata - Athyridida - Athyrididae
? Pseudoprotathyris modzalevskayae
Zhang 1989 5 specimens
Rhynchonellata - Atrypida - Glassiidae
? Glassia informal sp. 1 Davidson 1881
Zhang 1989 2 specimens
Rhynchonellata - Atrypida - Punctatrypidae
Reticulatrypa blodgetti
Zhang 1989 35 specimens
Rhynchonellata - Atrypida - Atrypinidae
Gracianella dimorpha
Zhang 1989 4 specimens
Spirigerina copperi Zhang 1989
Zhang 1989 2 specimens
Rhynchonellata - Atrypida - Lissatrypidae
Lissatrypa cf. atheroidea Twenhofel 1914
Zhang 1989 484 specimens
Rhynchonellata - Atrypida - Atrypidae
Eospinatrypa bassetti
Zhang 1989 365 specimens
Plectatrypa rongi
Zhang 1989 73 specimens
Rhynchonellata - Atrypida - Anazygidae
Zygatrypa stenoparva Boucot et al. 1988
Zhang 1989 11 specimens
Rhynchonellata - Protorthida - Skenidiidae
Skenidioides operosa Johnson et al. 1976
Zhang 1989 2249 specimens
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
"Ancillotoechia" sheehani
Zhang 1989 10 specimens
Thebesia cf. thebesensis (Foerste 1909)
Zhang 1989 422 specimens
Rhynchotreta americaniformis Zhang 1989
Zhang 1989 3 specimens
Rhynchonellata - Rhynchonellida - Rhynchotrematidae
Stegerhynchus angaciensis
Zhang 1989 317 specimens
original and current combination Rhynchonella (Stegerhynchus)
Stegerhynchus estonicus Rubel 1977
Zhang 1989 82 specimens
Rhynchonellata - Orthida - Draboviidae
Salopina carinata
Zhang 1989 25 specimens
Salopina robitaillensis
Zhang 1989 39 specimens
? Salopina sp. Boucot 1960
Zhang 1989 1 specimen
Hirnantia cf. sagittifera (McCoy 1851)
Zhang 1989 10 specimens
    = Hirnantia sp. Lamont 1935
Rong et al. 2019
Rhynchonellata - Orthida - Dicoelosiidae
Epitomyonia amplissima Zhang 1989
Zhang 1989 86 specimens
Epitomyonia clausula Johnson et al. 1976
Zhang 1989 806 specimens
Dicoelosia bailliehamiltonensis
Zhang 1989 3211 specimens
Rhynchonellata - Orthida - Rhipidomellidae
Dalejina parahanusi
Zhang 1989 142 specimens
Pseudomendacella boucoti
Zhang 1989 10 specimens
Rhynchonellata - Orthida - Dalmanellidae
Resserella canalis (Sowerby 1839)
Zhang 1989 170 specimens
Visbyella visbyensis (Lindstrom 1861)
Zhang 1989 114 specimens
Isorthis jini
Zhang 1989 189 specimens
Isorthis sulcata
Zhang 1989 129 specimens
Isorthis walmsleyi
Zhang 1989 43 specimens
Rhynchonellata - Orthida - Hesperorthidae
Flabellitesia kessei (Boucot et al. 1988)
Zhang 1989 71 specimens
Ptychopleurella lenzi Zhang 1989
Zhang 1989 29 specimens
Rhynchonellata - Orthida - Wangyuiidae
Wangyuia thorsteinssoni Zhang 1989
Zhang 1989 139 specimens
Gastropoda - Murchisoniina - Hormotomidae
Murchisonia (Murchisonia) sp. d'Archiac and de Verneuil 1841
Rohr et al. 1981 1 specimen
    = Diplozone aff. innocens Perner 1907
Wagner 2023
Gastropoda - Murchisoniina - Murchisoniidae
Loxoplocus (Donaldiella) sp. (Cossmann 1903)
Rohr et al. 1981 15 specimens
    = Murchisonia aff. obtusangula Lindström 1884
Wagner 2023
Gastropoda - Murchisoniina - Trochonematidae
Trochonema (Eunema) kaysi Rohr et al. 1981
Rohr et al. 1981 2 specimens
recombined as Globonema kaysi
Gastropoda - Euomphalina - Platyceratidae
Platyceras (Platyceras) sp. Conrad 1840
Rohr et al. 1981 1 specimen
Platyceras (Platyostoma) informal sp. A (Conrad 1842)
Rohr et al. 1981 2 specimens
original and current combination Platyostoma
Platyceras (Platyostoma) boggsi Rohr et al. 1981
Rohr et al. 1981 61 specimens
recombined as Platyostoma boggsi
Gastropoda - Euomphalina - Euomphalidae
Euomphalopterus (Euomphalopterus) alatus (Wahlenberg 1821)
Rohr et al. 1981 6 specimens
Rohr et al. 1981 1 specimen
Ostracoda - Leperditicopida - Leperditiidae
Leperditia arctica
1 specimen
Ostracoda - Palaeocopida
Severella arctosulcata Zhang 1989
Zhang 1989 45 specimens
Trilobita - Corynexochida - Illaenidae
Illaenidae indet. Hawle and Corda 1847
4 specimens
Trilobita - Proetida - Proetidae
Proetus cf. granulatus sensu lato Lindström 1885
2 specimens
recombined as Gerastos granulatus
Proetus sp. sensu lato Steininger 1831
2 specimens
Trilobita - Phacopida - Calymenidae
Calymene sp. Brongniart 1822
2 specimens
Trilobita - Phacopida - Encrinuridae
Encrinurus (Fragiscutum) sp. Emmrich 1844
14 specimens
Trilobita - Phacopida - Cheiruridae
Youngia informal sp. 2 Lindström 1885
8 specimens
    = Hyrokbye youngi n. sp.
Adrain 1998
BH 1 109-112 m
? Deiphon sp. Barrande 1846
1 specimen
Youngia informal sp. 1 Lindström 1885
3 specimens
    = Parayoungia mclaughlini n. sp. Adrain 1998
Adrain 1998
BH 1 109-143
Sphaerexochus dimorphus n. sp. Whittington and Evitt 1953
6 specimens
Trilobita - Lichida - Lichidae
Lichidae informal n. gen. n. sp.
4 specimens
Lichid n. gen. n. sp.
Lichidae informal indet. 2 Hawle and Corda 1847
2 specimens
Indeterminate lichid sp. 2
Borealarges mikulicorum (Perry and Chatterton 1977)
Adrain and Ramskold 1996
Dicranogmus skinneri n. sp. Perry and Chatterton 1977
3 specimens
Trilobita - Odontopleurida - Odontopleuridae
Acidaspis sp. Murchison 1839
2 specimens
see common names

Geography
Country:Canada State/province:Nunavut County:Baillie-Hamilton Island
Coordinates: 75.8° North, 94.5° West (view map)
Paleocoordinates:3.5° North, 32.6° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Silurian Epoch:Wenlock
Stage:Sheinwoodian 10 m.y. bin:Silurian 2
Key time interval:Sheinwoodian Graptolite zone: Monograptus riccartonensis-Monograptus firmus
Age range of interval:433.40000 - 430.50000 m.y. ago
Stratigraphy
Formation:Cape Phillips
Local section:C Local bed:97.5 ft
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: Parts of section yielding trilobites are from about 97.5 ft. to 245 ft. above base, spanning early Wenlockian Cyrtograptus canadenses through penultimate Wenlockian Monograptus testis zones. Monograptus riccartonensis-Monograptus firmus

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.
Lithology and environment
Primary lithology:shelly/skeletal "limestone"
Secondary lithology: calcareous "shale"
Lithology description: "alternating fine grained, argillaceous limestones and lesser amounts of interbedded calcareous shale and biogenic limestone" Column shows the last two named lithologies to be most relevant to these collections. Zhang: "..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."
Environment:slope Tectonic setting:passive margin
Geology comments: SEP environmental call based on given info and regional context
Taphonomy
Modes of preservation:body,replaced with silica
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:bulk,hydrochloric
Reason for describing collection:taxonomic analysis
Museum repositories:GSC
Taxonomic list comments:Presented in multiple papers.

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).
Metadata
Also known as:Trilobite-Ostracode Fauna, Cape Phillips Fm/; Brachiopods, Cape Phillips Formation,
Database number:26003
Authorizer:M. Foote, P. Wagner Enterer:M. Foote, P. Wagner
Modifier:P. Wagner Research group:marine invertebrate
Collections that are a subset of this one:26010
Created:2002-09-30 14:31:18 Last modified:2019-07-20 16:30:09
Access level:the public Released:2002-09-30 14:31:18
Creative Commons license:CC BY
Reference information

Primary reference:
7202. D. G. Perry and B. D. E. Chatterton. 1977. Silurian (Wenlockian) trilobites from Baillie-Hamilton Island, Canadian Arctic Archipelago. Canadian Journal of Earth Sciences 14:285-317 [M. Foote/M. Foote/M. Foote]

Secondary references:

23766 J. M. Adrain. 1998. Systematics of the Acanthoparyphinae (Trilobita), with Species from the Silurian of Arctic Canada. Journal of Paleontology 72(4):698-718 [P. Wagner/P. Wagner]
7199 J. M. Adrain and L. Ramskold. 1996. The lichid trilobite Radiolichas in the Silurian of Arctic Canada and Gotland, Sweden. Geological Magazine 133:147-158 [M. Foote/M. Foote/M. Foote]
7204 D. M. Rohr, A.J. Boucot, and D.G. Perry. 1981. Silurian (Wenlockian) gastropods from Baillie-Hamilton Island, Canadian Arctic. Journal of Paleontology 55(2):331-339 [M. Foote/M. Foote/P. Wagner]
69472 J. -Y. Rong, K. P. Aung, R.-B. Zhan, B. Huang, D. A.T. Harper, D. Chen, H.-H. Zhou and X.-L. Zhang. 2019. The latest Ordovician Hirnantia brachiopod Fauna of Myanmar: Significance of new data from the Mandalay Region. Palaeoworld 28 [P. Wagner/P. Wagner]
9042 P. J. Wagner. 2023. Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023). [P. Wagner/P. Wagner/P. Wagner]
7205 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]