Southampton Island, Sixteen Mile Brook, GSC Loc. O-103915 (Ordovician of Canada)

Where: Northwest Territories, Canada (64.0° N, 83.7° W: paleocoordinates 5.6° S, 43.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Red Head Rapids Formation, Richmondian (449.6 - 445.5 Ma)

• Collection taken from about 5.4 m above base of section.

• formation-level stratigraphic resolution

Environment/lithology: dolomite and limestone

• Environmental call by T. Hanson.
• Fine-grained dolomitic carbonate rocks and platy limestone.

Size classes: macrofossils, microfossils

Reposited in the GSC

Collection methods: chemical, sieve,

• Dissolved sample mass 3800 g. Graptolites and trilobites identified by Nelson and Johnson from rubble south of the mouth of Sixteen Mile Brook.

Primary reference: A. D. McCracken and G. S. Nowlan. 1989. Conodont paleontology and biostratigraphy of Ordovician carbonates and petroliferous carbonates on Southampton, Baffin, and Akpatok islands in the eastern Canadian Arctic. Canadian Journal of Earth Sciences 26(10):1880-1903 [S. Holland/T. Hanson/T. Hanson]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 26097: authorized by Steven Holland, entered by Tori Hanson on 03.10.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Pterobranchia
 Graptoloidea - Diplograptidae
Conodonta
 Protopanderodontida - Drepanoistodontidae
? Paroistodus sp. Lindström 1971 conodont
Drepanoistodus suberectus Branson and Mehl 1933 conodont
 Panderodontida - Panderodontidae
Panderodus spp. Ethington 1959 conodont
Panderodus gracilis Branson and Mehl 1933 conodont
Panderodus cf. feulneri Glenister 1957 conodont
? Pseudobelodina dispansa Glenister 1957 conodont
Pseudobelodina vulgaris Sweet 1979 conodont
Pseudobelodina v. vulgaris
 Belodellida -
Besselodus borealis Nowlan et al. 1988 conodont
 Belodellida - Belodellidae
Coelocerodontus trigonius Ethington 1959 conodont
Walliserodus ? amplissimus Serpagli 1967 conodont
 Prioniodontida - Balognathidae
Amorphognathus ordovicicus Bergström and Bergström 1996 conodont
 Prioniodontida -
Pseudooneotodus aff. beckmanni Bischoff and Sannemann 1958 conodont
 Ozarkodinida -
Periodon grandis Ethington 1959 conodont
Trilobita
 Asaphida - Asaphidae