PBDB Collection

GSC 26406, Lyall River, Grinnell Peninsula, Devon Island (Permian of Canada)

Where: Nunavut, Canada (77.0° N, 95.4° W: paleocoordinates 37.2° N, 0.2° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Assistance Formation, Roadian (272.3 - 268.8 Ma)

• Collection between 45 and 57 m above base of formation

• group of beds-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified, glauconitic, gray sandstone and lithified, bioturbated, concretionary, hematitic, silty limestone

• 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.

Size class: macrofossils

Preservation: replaced with other

Reposited in the GSC

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 11089: authorized by Arnold Miller, entered by Chad Ferguson on 13.07.2001, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Chondrichthyes
-	Physonemus sp.⁹ Physonemus sp.⁹ Agassiz 1843 elasmobranch
Lingulata
Lingulida - Lingulidae	Lingula freboldi² Lingula freboldi² Gobbett 1963
Lingulida - Discinidae	Orbiculoidea jangarensis⁴ Orbiculoidea jangarensis⁴ Ustritsky 1960
Rhynchonellata
Spiriferida - Trigonotretidae	"Gobbettifera angulata n. gen. n. sp." = Fasciculatia angulata⁵ "Gobbettifera angulata n. gen. n. sp." = Fasciculatia angulata⁵ Waterhouse 2004
Spiriferida - Spiriferidae	"Spirifer osborni n. sp." = Brachiokasakhstania osborni "Spirifer osborni n. sp." = Brachiokasakhstania osborni Harker 1960
Spiriferida - Spiriferellidae	Timaniella harkeri¹², Spiriferella loveni¹³ Timaniella harkeri¹² Waterhouse 1971 Spiriferella loveni¹³ Diener 1903
Spiriferida - Strophopleuridae	Pterospirifer cf. alatus Pterospirifer cf. alatus von Schlotheim 1813
Spiriferida - Elythidae	"Neophricadothyris "sp. B"" = Phricodothyris² "Neophricadothyris "sp. B"" = Phricodothyris² George 1932
Rhynchonellida - Stenoscismatidae	Stenoscisma cf. kochi, Septacamera opitula n. sp.³ Stenoscisma cf. kochi Dunbar 1955 Septacamera opitula n. sp.³ Grant 1971
Rhynchonellida - Rhynchoporidae	Rhynchopora cf. nikitini Rhynchopora cf. nikitini Tschernyschew 1889
Terebratulida - Dielasmatidae	Dielasma cf. plica Dielasma cf. plica Kutorga 1842
Athyridida - Athyrididae	Cleiothyridina cf. subexpansa Cleiothyridina cf. subexpansa Waagen 1883
Strophomenata
Orthotetida - Schuchertellidae	"Streptorhynchus kempei" = Arctitreta kempei, "Streptorhynchus triangularis" = Arctitreta triangularis "Streptorhynchus kempei" = Arctitreta kempei Andersson 1914 "Streptorhynchus triangularis" = Arctitreta triangularis Wiman 1914
Orthotetida - Derbyiidae	Derbyia cf. grandis Derbyia cf. grandis Waagen 1884
Strophomenida - Rugosochonetidae	"Chonetes capitolinus" = Brachiosvalbardia capitolina "Chonetes capitolinus" = Brachiosvalbardia capitolina Toula 1875
Productida - Productidae	"Kochiproductus freboldi" = Kochiproductus porrectus, "Muirwoodia mammatus" = Yakovlevia mammata "Kochiproductus freboldi" = Kochiproductus porrectus Kutorga 1844 "Muirwoodia mammatus" = Yakovlevia mammata Keyserling 1846
Productida - Productellidae	"Thuleproductus arcticus" = Thamnosia arctica¹¹ "Thuleproductus arcticus" = Thamnosia arctica¹¹ Whitfield 1908
Productida - Echinoconchidae	Waagenoconcha ? payeri, Waagenoconcha cf. irginaeformis Waagenoconcha ? payeri Toula 1873 Waagenoconcha cf. irginaeformis Stepanov 1937
Productida - Monticuliferidae	"Cancrinella cf. germanicus" = Costatumulus germanicus "Cancrinella cf. germanicus" = Costatumulus germanicus Frebold 1933
Cephalopoda
Goniatitida - Spirolegoceratidae	Sverdrupites sp.⁸, Sverdrupites harkeri n. sp.⁸ Sverdrupites sp.⁸ Nassichuk 1970 ammonite Sverdrupites harkeri n. sp.⁸ Ruzhentsev 1961 ammonite
Goniatitida - Paragastrioceratidae	"Pseudogastrioceras fortieri n. sp." = Daubichites fortieri "Pseudogastrioceras fortieri n. sp." = Daubichites fortieri Harker 1960 ammonite
Goniatitida - Mongoloceratidae	Biarmiceras sp.⁶ Biarmiceras sp.⁶ Leonova et al. 2005 ammonite
Scaphopoda
Dentaliida - Prodentaliidae	Prodentalium belcheri n. sp.¹⁰ Prodentalium belcheri n. sp.¹⁰ Nassichuk and Hodgkinson 1976 tusk shell
Bivalvia
Myalinida - Myalinidae	Myalinidae indet.⁷ Myalinidae indet.⁷ Frech 1891 clam
Ostreida - Bakevelliidae	Bakevellia sp.⁷ Bakevellia sp.⁷ King 1848 oyster
Pectinida - Aviculopectinidae	Aviculopecten sp.⁷ Aviculopecten sp.⁷ M'Coy 1851 scallop
Pectinida - Deltopectinidae	Deltopecten sp.⁷, "Cyrtorostra arctica n. sp." = Cyrtorostra laticostata⁷ Deltopecten sp.⁷ Etheridge 1892 scallop "Cyrtorostra arctica n. sp." = Cyrtorostra laticostata⁷ Nechaev 1894 scallop
Pectinida - Limipectinidae	Acanthopecten sp.⁷ Acanthopecten sp.⁷ Girty 1903 scallop
Trigoniida - Schizodidae	Schizodus sp.⁷ Schizodus sp.⁷ King 1844 clam
Cardiida - Kalenteridae	Permophorus sp.⁷, Stutchburia sp.⁷ Permophorus sp.⁷ Chavan 1954 clam Stutchburia sp.⁷ Etheridge 1900 clam
Pholadomyida - Edmondiidae	Edmondia sp.⁷ Edmondia sp.⁷ de Koninck 1841 clam
Scyphozoa
Conulariida - Conulariidae	Paraconularia margaritae n. sp.¹, Paraconularia arctica n. sp.¹ Paraconularia margaritae n. sp.¹ Babcock 1988 jellyfish Paraconularia arctica n. sp.¹ Babcock 1988 jellyfish

¹Babcock 1988; ²Gobbett 1963; ³Grant 1971; ⁴Kalashnikov 1993; ⁵Lee et al. 2016; ⁶Leonova et al. 2005; ⁷Logan 1970; ⁸Nassichuk 1970; ⁹Nassichuk 1971; ¹⁰Nassichuk and Hodgkinson 1976; ¹¹Sarycheva and Waterhouse 1972; ¹²Waterhouse 1971; ¹³Waterhouse and Waddington 1982