GSC 26406, Lyall River, Grinnell Peninsula, Devon Island: Roadian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Scyphozoa - Conulariida - Conulariidae
Paraconularia arctica n. sp. Babcock 1988
Babcock 1988
Paraconularia margaritae n. sp. Babcock 1988
Babcock 1988
Cephalopoda - Goniatitida - Mongoloceratidae
Popanoceras cf. sobolewskyanum (de Verneuil 1845)
Nassichuk 1970
    = Biarmiceras sp. Leonova et al. 2005
Leonova et al. 2005
Cephalopoda - Goniatitida - Paragastrioceratidae
Pseudogastrioceras fortieri n. sp. Harker 1960
recombined as Daubichites fortieri
(6 measurements)
Cephalopoda - Goniatitida - Spirolegoceratidae
Sverdrupites sp. Nassichuk 1970
Nassichuk 1970
Metalegoceras sp. Schindewolf 1931
(3 measurements)
    = Sverdrupites harkeri n. sp. Ruzhentsev 1961
Nassichuk 1970
Bivalvia - Myalinida - Myalinidae
Myalinidae indet. Frech 1891
Logan 1970
Bivalvia - Pectinida - Deltopectinidae
Deltopecten sp. Etheridge 1892
Logan 1970
Cyrtorostra arctica n. sp. Logan 1970
Logan 1970
synonym of Cyrtorostra laticostata
(3 measurements)
Bivalvia - Pectinida - Aviculopectinidae
Aviculopecten sp. M'Coy 1851
Logan 1970
Bivalvia - Pectinida - Limipectinidae
Acanthopecten sp. Girty 1903
Logan 1970
Bivalvia - Ostreida - Bakevelliidae
Bakevellia sp. King 1848
Logan 1970
Bivalvia - Pholadomyida - Edmondiidae
Edmondia sp. de Koninck 1841
Logan 1970
Bivalvia - Cardiida - Kalenteridae
Stutchburia sp. Etheridge 1900
Logan 1970
Permophorus sp. Chavan 1954
Logan 1970
Bivalvia - Trigoniida - Schizodidae
Schizodus sp. King 1844
Logan 1970
Scaphopoda - Dentaliida - Prodentaliidae
Plagioglypta sp. Pilsbry 1898
    = Prodentalium belcheri n. sp. Nassichuk and Hodgkinson 1976
Nassichuk and Hodgkinson 1976
Strophomenata - Orthotetida - Schuchertellidae
Streptorhynchus kempei Andersson 1914
recombined as Arctitreta kempei
(3 measurements)
Streptorhynchus triangularis Wiman 1914
recombined as Arctitreta triangularis
(2 measurements)
Strophomenata - Orthotetida - Derbyiidae
Derbyia cf. grandis Waagen 1884
(1 measurement)
Strophomenata - Strophomenida - Rugosochonetidae
Chonetes capitolinus Toula 1875
recombined as Brachiosvalbardia capitolina
(2 measurements)
Strophomenata - Productida - Echinoconchidae
Waagenoconcha ? payeri (Toula 1873)
(2 measurements)
Waagenoconcha cf. irginaeformis Stepanov 1937
Strophomenata - Productida - Productidae
Kochiproductus freboldi (Stepanov 1937)
synonym of Kochiproductus porrectus
(1 measurement)
Muirwoodia mammatus (Keyserling 1846)
recombined as Yakovlevia mammata
(3 measurements)
Strophomenata - Productida - Productellidae
Dictyoclostus cf. neoinflatus (Licharew 1938)
(2 measurements)
    = Thuleproductus arcticus Whitfield 1908
Sarycheva and Waterhouse 1972
recombined as Thamnosia arctica
Strophomenata - Productida - Monticuliferidae
Cancrinella cf. germanicus (Frebold 1933)
recombined as Costatumulus germanicus
(1 measurement)
Rhynchonellata - Rhynchonellida - Stenoscismatidae
Stenoscisma cf. kochi (Dunbar 1955)
(2 measurements)
Stenoscisma plicatum (Kutorga 1844)
(3 measurements)
    = Septacamera opitula n. sp. Grant 1971
Grant 1971
Rhynchonellata - Rhynchonellida - Rhynchoporidae
Rhynchopora cf. nikitini Tschernyschew 1889
(2 measurements)
Rhynchonellata - Spiriferida - Strophopleuridae
Pterospirifer cf. alatus (von Schlotheim 1813)
(5 measurements)
Rhynchonellata - Spiriferida - Spiriferidae
Spirifer osborni n. sp. Harker 1960
recombined as Brachiokasakhstania osborni
(2 measurements)
Rhynchonellata - Spiriferida - Spiriferellidae
Spiriferella saranae (de Verneuil 1845)
(4 measurements)
    = Spiriferella loveni Diener 1903
Waterhouse and Waddington 1982
Spiriferella keilhavii (von Buch 1847)
(1 measurement)
    = Spiriferella loveni Diener 1903
Waterhouse and Waddington 1982
? Pterospirifer informal sp. A Dunbar 1955
(8 measurements)
    = Timaniella harkeri Waterhouse 1971
Waterhouse 1971
Rhynchonellata - Spiriferida - Trigonotretidae
Spirifer striatoparadoxus Toula 1873
(5 measurements)
    = Gobbettifera angulata n. gen., n. sp. Waterhouse 2004
Lee et al. 2016
recombined as Fasciculatia angulata
Rhynchonellata - Spiriferida - Elythidae
Squamularia asiatica Chao 1929
(2 measurements)
    = Neophricadothyris informal sp. B Likharev 1934
Gobbett 1963
synonym of Phricodothyris
Rhynchonellata - Athyridida - Athyrididae
Cleiothyridina cf. subexpansa (Waagen 1883)
(1 measurement)
Rhynchonellata - Terebratulida - Dielasmatidae
Dielasma cf. plica (Kutorga 1842)
(2 measurements)
Lingulata - Lingulida - Lingulidae
Lingula cf. arctica Miloradovich 1936
(3 measurements)
    = Lingula freboldi Gobbett 1963
Gobbett 1963
Lingulata - Lingulida - Discinidae
Orbiculoidea sp. d'Orbigny 1847
(3 measurements)
    = Orbiculoidea jangarensis Ustritsky 1960
Kalashnikov 1993
Chondrichthyes
Physonemus sp. Agassiz 1843
Nassichuk 1971
see common names

Geography
Country:Canada State/province:Nunavut
Coordinates: 77.0° North, 95.4° West (view map)
Paleocoordinates:37.2° North, 0.2° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Permian Epoch:Guadalupian
Stage:Roadian 10 m.y. bin:Permian 3
*Period:Early/Lower Permian - Middle Permian
Key time interval:Roadian
Age range of interval:272.30000 - 268.80000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Assistance
Stratigraphic resolution:group of beds
Stratigraphy comments: Collection between 45 and 57 m above base of formation
Lithology and environment
Primary lithology:glauconitic,gray lithified sandstone
Secondary lithology:bioturbation,concretionary,hematitic lithified silty "limestone"
Lithology description: 200 ft. of dark grey recessive sandstone and minor resistant silty limestone bands that are iron rich, concretionary, and contain and abundance of plant and animal debris. Unconsolidated glauconitic sandy clay and sand, locally with siderite and sandstone concretions.
Environment:offshore shelf
Taphonomy
Modes of preservation:body,replaced with other
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Museum repositories:GSC
Metadata
Database number:11089
Authorizer:A. Miller, M. Clapham Enterer:C. Ferguson, M. Clapham
Modifier:M. Clapham Research group:marine invertebrate,vertebrate
Created:2001-07-13 07:39:06 Last modified:2011-07-16 21:49:37
Access level:the public Released:2001-07-13 07:39:06
Creative Commons license:CC BY
Reference information

Primary reference:

29757. P. Harker and R. Thorsteinsson. 1960. Permian rocks and faunas of Grinnell Peninsula, Arctic Archipelago. Geological Survey of Canada Memoir 309:1-89 [M. Clapham/M. Clapham]

Secondary references:

29762 L. E. Babcock. 1988. New Permian conulariids from Devon Island, Canada. Journal of Paleontology 62(4):615-617 [M. Clapham/M. Clapham]
38284 D. J. Gobbett. 1963. Carboniferous and Permian brachiopods of Svalbard. Norsk Polarinstitutt Skrifter 127:1-201 [M. Clapham/M. Clapham]
27578 R. E. Grant. 1971. Taxonomy and autecology of two arctic Permian rhynchonellid brachiopods. Smithsonian Contributions to Paleobiology 3:313-335 [M. Clapham/M. Clapham/M. Clapham]
27342 N.V. Kalashnikov. 1993. Brakhiopody Permi Evropeiskogo Severa Rossyy 1-114 [M. Clapham/M. Clapham/M. Clapham]
57453 S. Lee, G. R. Shi, H. Park and J. I. Tazawa. 2016. Antitropicality and convergent evolution: a case study of Permian neospiriferine brachiopods. Palaeontology 59:109-138 [M. Clapham/M. Clapham]
27492 T. B. Leonova, R. V. Kutygin, and O. P. Shilovsky. 2005. New data on the composition and evolution of the Permian superfamily Popanocerataceae (Ammonoidea). Paleontological Journal 39(5):476-486 [M. Clapham/M. Clapham/M. Clapham]
29761 A. Logan. 1970. A new species of Cyrtorostra (Bivalvia) from the Permian of the Canadian Arctic. Journal of Paleontology 44(5):867-871 [M. Clapham/M. Clapham]
29760 W. W. Nassichuk. 1970. Permian ammonoids from Devon and Melville Islands, Canadian Arctic Archipelago. Journal of Paleontology 44(1):77-97 [M. Clapham/M. Clapham]
30290 W. W. Nassichuk. 1971. Helicoprion and Physonemus, Permian vertebrates from the Assistance Formation, Canadian Arctic Archipelago. Geological Survey of Canada Bulletin 192:83-93 [M. Clapham/M. Clapham]
4079 W. W. Nassichuk and K. A. Hodgkinson. 1976. Scaphopods from the Permian Assistance Formation, Canadian Arctic Archipelago. Journal of Paleontology 50(6):1150-1156 [A. Miller/C. Ferguson]
27295 T. G. Sarycheva and J. B. Waterhouse. 1972. Some brachiopods of the family Retariidae from the Permian of northern Canada. Paleontological Journal 6:501-513 [M. Clapham/M. Clapham/M. Clapham]
29758 J. B. Waterhouse. 1971. Appendix 2: systematic description of new brachiopod species and genera, in Carboniferous and Permian Stratigraphy and Paleontology, Northern Yukon Territory, Canada. Bulletin of Canadian Petroleum Geology 19(1):205-234 [M. Clapham/M. Clapham/M. Clapham]
29759 J. B. Waterhouse and J. Waddington. 1982. Systematic descriptions, paleoecology and correlations of the late Paleozoic subfamily Spiriferellinae (Brachiopoda) from the Yukon Territory and the Canadian Arctic Archipelago. Geological Survey of Canada Bulletin 289:1-73 [M. Clapham/M. Clapham]