GSC 95286, Aberdeen Lake, Keewatin (Ordovician of Canada)

Where: Nunavut, Canada (64.9° N, 98.7° W)

• Paleocoordinates: 1.1° N, 105.7° W (Wright 2013)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Conodont Fauna 12 conodont zone, Aberdeen Lake Formation, Richmondian (449.6 - 445.5 Ma)

• "U. Ord. (prob. Richmondian). Aberdeen Lake Fm. Outlier"

• formation-level stratigraphic resolution

Environment/lithology: marine; gray limestone

• "grey, buff-to-grey weathering, finely crystalline, soft, friable, ls. undul and irreg. bedding."

Size classes: macrofossils, mesofossils

Collected by M.R. Michaud in 1977; reposited in the GSC

Primary reference: T. E. Bolton and G. S. Nowlan. 1979. A Late Ordovician fossil assemblage from an outlier north of Aberdeen Lake, District of Keewatin. Geological Survey of Canada Bulletin 321:1-26 [P. Wagner/P. Wagner/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 169387: authorized by Pete Wagner, entered by Pete Wagner on 22.05.2015

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Chlorophyceae
 Dasycladales - Dasycladaceae
Cyclocrinites sp.
Cyclocrinites sp. Stolley 1898
Conodonta
 Belodellida - Belodellidae
Walliserodus cf. curvatus
Walliserodus cf. curvatus Branson and Branson 1947 conodont
 Protopanderodontida - Drepanoistodontidae
Drepanoistodus suberectus
Drepanoistodus suberectus Branson and Mehl 1933 conodont
 Panderodontida - Panderodontidae
Plegagnathus dartoni, Belodina profunda, Belodina compressa, Panderodus breviusculus, Panderodus "n. sp. C", Panderodus gracilis, Panderodus panderi, Panderodus feulneri
Plegagnathus dartoni Stone and Furnish 1959 conodont
Belodina compressa Branson and Mehl 1933 conodont
Panderodus "n. sp. C" Ethington 1959 conodont
Panderodus gracilis Branson and Mehl 1933 conodont
Panderodus panderi Stauffer 1940 conodont
Panderodus feulneri Glenister 1957 conodont
unclassified
  -
Echinodermata indet.
Trilobita
  -
Trilobita indet.
Trilobita indet. Walch 1771 trilobite
Strophomenata
 Strophomenida - Rafinesquinidae
Rafinesquinidae indet.
Rafinesquinidae indet. Schuchert 1893
Rhynchonellata
 Orthida - Plaesiomyidae
? Dinorthis sp.
? Dinorthis sp. Hall and Clarke 1892
Cephalopoda
 Oncocerida - Diestoceratidae
Diestoceras sp.
Diestoceras sp. Foerste 1924
 Actinocerida - Armenoceratidae
Armenoceras michaudae n. sp.
Armenoceras michaudae n. sp. Bolton and Nowlan 1979
 Endocerida - Endoceratidae
Cyclendoceras sp.
Cyclendoceras sp. Grabau and Shimer 1910
Gastropoda
 Murchisoniina - Trochonematidae
Trochonema cf. coxi
Trochonema cf. coxi Wilson 1938 snail
Anthozoa
 Favositida - Favositidae
Paleofavosites sp.
Paleofavosites sp. Twenhofel 1914 tabulate coral
 Heliolitida - Halysitidae
Tollina aff. feildeni, Catenipora sp.
Tollina aff. feildeni tabulate coral
Catenipora sp. Lamarck 1816 tabulate coral
 Lichenariida - Lyoporidae
Trabeculites manitobensis
 Auloporida - Tetraporellidae
Troedssonites flexibilis
 Stauriida - Streptelasmatidae
Bighornia bottei, Lobocorallium sp., Deiracorallium giganteum
Bighornia bottei horn coral
Lobocorallium sp. Nelson 1963 horn coral
 Stauriida - Stauriidae
Palaeophyllum raduguini
Stromatoporoidea
 Labechiida - Rosenellidae
Cystostroma sp.
Cystostroma sp. Galloway and St Jean 1957 stromatoporoid sponge