PBDB Collection

GSC 57572, Aberdeen Lake, Keewatin (Ordovician of Canada)

Where: Nunavut, Canada (64.9° N, 98.8° W: paleocoordinates 0.8° S, 47.4° W)

• coordinate estimated from map

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 J.A. Donaldson in 1963; 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 360: authorized by Arnold Miller, entered by Mike Sommers on 20.11.1998, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• "T.E. Bolton and G.S. Nowlan, 1979. A late Ord fossil assemblage from an outlier north of aberdeen lake, district of keewatin. Geol. Surv. Can. Bull. 321, pp.1-2[illeg]"

Show authors, comments, and common names

Anthozoa
Heliolitida - Palaeoporitidae	Protrochiscolithus cummingi Protrochiscolithus cummingi tabulate coral
Sarcinulida - Syringophyllidae	Calapoecia ungava Calapoecia ungava tabulate coral
Lichenariida - Lyoporidae	Nyctopora sp. Nyctopora sp. Nicholson 1879 tabulate coral
Favositida - Favositidae	Saffordophyllum churchillensis Saffordophyllum churchillensis tabulate coral
Stauriida - Streptelasmatidae	Bighornia bottei, Grewingkia sp. Bighornia bottei horn coral Grewingkia sp. Dybowski 1873 horn coral

Hyolithelminthida -	Phosphannulus universalis Phosphannulus universalis
Conodonta
Panderodontida - Panderodontidae	Belodina profunda, Panderodus breviusculus, Panderodus "n. sp. A", Panderodus "n. sp. B", Panderodus "n. sp. C", Panderodus gracilis, Panderodus panderi, Plegagnathus nelsoni, Plegagnathus dartoni Belodina profunda conodont Panderodus breviusculus conodont Panderodus "n. sp. A" Ethington 1959 conodont Panderodus "n. sp. B" Ethington 1959 conodont Panderodus "n. sp. C" Ethington 1959 conodont Panderodus gracilis Branson and Mehl 1933 conodont Panderodus panderi Stauffer 1940 conodont Plegagnathus nelsoni conodont Plegagnathus dartoni Stone and Furnish 1959 conodont
Prioniodontida - Balognathidae	Amorphognathus sp. Amorphognathus sp. Branson and Mehl 1933 conodont
Prioniodontida - Acodontidae	Acodus sp. Acodus sp. Pander 1856 conodont
Belodellida - Belodellidae	Walliserodus cf. curvatus Walliserodus cf. curvatus Branson and Branson 1947 conodont
Protopanderodontida - Drepanoistodontidae	Drepanoistodus suberectus Drepanoistodus suberectus Branson and Mehl 1933 conodont
unclassified
-	Echinodermata indet. Echinodermata indet. Klein 1754 columnal debris, both round and pentagonal
Gastropoda
Murchisoniina - Trochonematidae	Trochonema cf. coxi Trochonema cf. coxi Wilson 1938 snail originally entered as "Trochonema cf. coxi"
Cephalopoda
Oncocerida - Diestoceratidae	Diestoceras sp. Diestoceras sp. Foerste 1924
Actinocerida - Armenoceratidae	Armenoceras michaudae Armenoceras michaudae Bolton and Nowlan 1979
Palaeoscolecida
-	Milaculum ethinclarki Milaculum ethinclarki
Trilobita
-	Trilobita indet. Trilobita indet. Walch 1771 trilobite trilobite fragments
Deuteropoda
-	Ostracoda indet. Ostracoda indet. Latreille 1802 ostracod smooth tiny form