BRACHIOPODS: CAMBRIAN-TREMADOC PRECURSORS TO ORDOVICIAN RADIATION EVENTS
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dc.contributor.author | Bassett M.G. | |
dc.contributor.author | Popov L.E. | |
dc.contributor.author | Holmer L.E. | |
dc.date.accessioned | 2021-05-28T08:26:43Z | |
dc.date.available | 2021-05-28T08:26:43Z | |
dc.date.issued | 2002 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=14237931 | |
dc.identifier.citation | Geological Society Special Publication, 2002, 194, С., 13-23 | |
dc.identifier.issn | 0305-8719 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/28725 | |
dc.description.abstract | Brachiopod-dominated palaeocommunities incorporating a structure typical of faunal groups within the Palaeozoic Evolutionary Fauna were already present in North and East Gondwana and associated terranes as early as the mid-Cambrian, confined exclusively to shallow marine, inshore environments. The late Cambrian and Tremadoc record of these faunas is incomplete, because of pronounced global sea-level lowstand and subsequent break-up and destruction of the Cambrian Gondwanan margin. It is likely, however, that those groups later forming the core of the Palaeozoic Evolutionary Fauna evolved originally in shallow-water environments of low-latitude peri-Gondwana, and dispersed widely when favourable ecological conditions developed. Conspicuous sea-level rise through the early to mid-Arenig provided newly available habitats in the expanding epeiric seas, where the new faunas evolved and diversified by the mid-Ordovician, when rapid drift separated the early Palaeozoic continents. Relatively short-lived precursor and transitional brachiopod assemblages can be identified on most of the main palaeocontinents prior to the Ordovician radiation of the Palaeozoic Evolutionary Fauna. | |
dc.subject | Ordovician | |
dc.subject | Cambrian | |
dc.title | BRACHIOPODS: CAMBRIAN-TREMADOC PRECURSORS TO ORDOVICIAN RADIATION EVENTS | |
dc.type | Статья | |
dc.subject.age | Paleozoic::Ordovician | |
dc.subject.age | Палеозой::Ордовикская | ru |
dc.subject.age | Палеозой::Кембрийская | ru |
dc.subject.age | Paleozoic::Cambrian |
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