DINELEY & LOEFFLER, 1976

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:

Type 1

NMC 21428: Incomplete dorsal shield.

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

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:

Type 2

NMC 19776: Incomplete dorsal shield.

Note: Brackish water lagoon.