Unit Name: Hota Formation
Unit Type: Lithostratigraphic
Rank: Formation
Status: Formal
Usage: Currently in use
Age Interval: late Early Cambrian (524.5 - 513 ma)
Age Justification: Scattered late Lower Cambrian trilobites throughout belonging to the upper part of the Bonnia-Olenellus Zone (Fritz and Mountjoy, 1975).
Province/Territory: Alberta; British Columbia

Originator: Walcott, C.D., 1913, p. 338.

Type Locality:
Immediately north of Coleman glacier, on a small ridge north of the head of Coleman Brook, central-western Alberta, 6 km (3.8 mi) northeast of Robson Pass.

Distribution:
244 m (800 ft) of "massive-bedded arenaceous limestone in great bands of light and dark grey color with a band of grey, pinkish weathering limestone at the top".

Relationship:
Conformably overlies the Mahto Formation and is overlain by the Chetang Formation along a distinct, sharp contact.

History:
Burling (1923) renamed the Hota Formation in the Mumm Peak section and made it the type section of the Adolphus. Mountjoy (1962) used the term Hota-Adolphus. Fritz and Mountjoy (1975), after re-study of all sections abandoned Adolphus for Walcott's Hota Formation on the basis of historical priority.

Other Citations:
Burling, 1923; Fritz and Mountjoy, 1975, Mountjoy, 1962; Walcott, 1913, 1928.

Source: CSPG Lexicon of Canadian Stratigraphy, Volume 4, western Canada, including eastern British Columbia, Alberta, Saskatchewan and southern Manitoba; D.J. Glass (editor)
Contributor: E.W. Mountjoy
Entry Reviewed: Yes
Name Set: Lithostratigraphic Lexicon
LastChange: 29 Apr 2003