DINELEY & FOEFLLER, 1976

Locality: GSC 69017, 63?25’N, 128?00’W, west of Natla River, Northwest Territories Province, Canada.

Horizon: 38m above the base of the Delorme Formation.

Biostratigraphy:

Age: Late Silurian or Early Devonian.

Material:

NMC 19770: An incomplete dorsal shield.

Note: Brackish water lagoon.

Locality: GSC 58497, 62?46’N, 126?30’W, northernmost Thundercloud Range, Northwest Territories Province, Canada.

Horizon: 55m above the base of the Delorme Formation.

Biostratigraphy:

Age: Late Silurian or Early Devonian.

Material:

NMC 21427: A single crushed, incomplete dorsal shield.

Note: Shallow water, probably of low salinity; low-energy levels, but perhaps periodic flooding or tidal movement of water.

Locality: CS (Chevron Standard Localities) YA17, 62?42’N, 127?53’W, 1.6 km north of Grizzly Bear Lake, Northwest Territories Province, Canada.

Horizon: 8F, Delorme Formation.

Biostratigraphy:

Age: Late Silurian or Early Devonian.

Material:

Note: Shallow water, marine.

NMC 13809: Indeterminate ventral shield.

NMC 13810: Incomplete ventral shield.

NMC 13811: Indeterminate shield fragment.

NMC 13812: Dorsal shield fragment including orbital notch.

Locality: CS (Chevron Standard Localities) YA17, 62?42’N, 127?53’W, 1.6 km north of Grizzly Bear Lake, Northwest Territories Province, Canada.

Horizon: 9F, Delorme Formation.

Biostratigraphy:

Age: Late Silurian or Early Devonian.

Material:

NMC 13818: Large indeterminate shield fragment.

Note: Shallow water, marine.

Locality: CS (Chevron Standard Localities) YG1, 129?21’W, 35 km west-north-west of June Lake, Northwest Territories, Canada.

Horizon: 6F is at 115m and horizon Formation unknown.

Biostratigraphy:

Age: Earliest Devonian.

Material:

NMC 13803: Internal mould of dorsa shield.

NMC 13804: Internal mould of indeterminate shield.

NMC 13805: Indeterminate shield fragment.

NMC 13806: Internal mould of small shield.

NMC 13807: Indeterminate shield fragment.

NMC 13808: Ventral shield fragment.

Note: Probably shallow marine.

Locality: CS (Chevron Standard Localities) YG1, 62?42’N, 127?53’W, 1.6 km north of Grizzly Bear Lake, Northwest Territories Province, Canada.

Horizon: 9F at 159m in the section, both within the Delorme Formation.

Biostratigraphy:

Age: Late Silurian or Early Devonian.

Material:

NMC 13817: Reversed, poorly preserved dorsal shield.

Note: Shallow high-energy, marine.

Locality: CS (Chevron Standard Localities) YE41, 62?36’N, 127?47’W, 8 km south of Grizzly Bear Lake, Northwest Territories Province, Canada.

Horizon: 3F is at 61 m in section, Formation unknown.

Biostratigraphy:

Age: Late Silurian or Early Devonian.

Material:

NMC 13813: Rostral fragment with broadly rounded rostral margin and ridges of varying width.

Note: Perhaps a rather anaerobic area of still water with rare influxes of silt and organic debris.

 

Locality: CS (Chevron Standard Localities) Yex37b, 62?35’N, 127?45’W, 16 km south of Grizzly Bear Lake, spot locality, Northwest Territories Province, Canada.

Horizon: Formation unknown.

Biostratigraphy:

Age: Late Silurian or Early Devonian.

Material:

NMC 13814: Indeterminate fragment.

Note: Perhaps a rather anaerobic area of still water with rare influxes of silt and organic debris.

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LOEFFLER & JONES, 1976

Locality: On the east side of the bay at Port Leopold, Somerset Island, North-west Territories Province, Canada.

Horizon: Approximately 220 m above the base of the Leopold Formation.

Biostratigraphy:

Age: Late Silurian or Early Devonian.

Material:

NMC 21588: A dorsal shield.