Distribution of the Toquima-Table Head (Middle Ordovician Whiterock) Faunal Realm in the Northern Hemisphere
Bulletin of the Geological Society of America
By: Reuben James Ross Jr. and J. Keith Ingham
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Abstract
Discovery of a Whiterock trilobite assemblage in the Albany Mudstone, Girvan District, southwestern Scotland, led to an assessment of the distribution of Middle Ordovician brachiopod and trilobite faunas previously assigned to the White-rock Stage of Cooper (1956).
These faunas lie within a belt designated as the Toquima-Table Head Faunal Realm. This realm is closely related to the position of the transition from miogeosynclmal to eugeosynclinal facies, presumed to indicate the position of Ordovician continental margins. In Middle Ordovician time North America, parts of Ireland, Scotland, Norway, Sweden, and northeastern Asia may have constituted a single continental mass.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Distribution of the Toquima-Table Head (Middle Ordovician Whiterock) Faunal Realm in the Northern Hemisphere |
| Series title | Bulletin of the Geological Society of America |
| DOI | 10.1130/0016-7606(1970)81[393:DOTTHM]2.0.CO;2 |
| Volume | 81 |
| Issue | 2 |
| Year Published | 1970 |
| Language | English |
| Publisher | Geological Society of America |
| Description | 17 p. |
| First page | 393 |
| Last page | 408 |
| Country | Scotland, United Kingdom |
| County | Ayrshire County |
| Other Geospatial | Doularg Hill, Stinchar Valley |
| Google Analytic Metrics | Metrics page |