The brachiopod Heterorthis from the Caradoc of the Oslo Region ― a Gondwanan immigrant ?
The Ordovician enteletacean brachiopod Heterorthis is documented from the Baltic province for the first time. The occurrence, within the lower Caradoc Arnestad Formation, is earlier than its appearance in the North American province, but later than the acme of the heterorthids around the margins of...
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Veröffentlicht in: | Norsk Geologisk Tidsskrift 1990, Vol.70 (3), p.187-189 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The Ordovician enteletacean brachiopod Heterorthis is documented from the Baltic province for the first time. The occurrence, within the lower Caradoc Arnestad Formation, is earlier than its appearance in the North American province, but later than the acme of the heterorthids around the margins of Gondwana. |
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ISSN: | 0029-196X |