| Palaeobiogeography of Early Jurassic Lithiotis-type bivalve buildups as recovery effect after Triassic/Jurassic mass extinction and
their connections with Asian palaeogeograph |
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| 关键词:Lithiotis Triassic Jurassic Tethys Panthalassa |
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| Palaeobiogeography of Early Jurassic Lithiotis-type bivalve buildups as recovery effect after Triassic/Jurassic mass extinction andtheir connections with Asian palaeogeograph |
| The huge, up to 40-50 cm long bivalves, Lithiotis, Cochlearites and Lithioperna, which dominated within “Lithiotis” facies (sensu – Fraser et al., 2004 with lit-erature cited therein), are most significant representa-tives of buildup-maker of shallow marine/lagoonal bivalve mounds (reefs) in numerous places of Tethyan- Panthalassa margins during Pliensbachian-Early Toar-cian times. The distribution of Lithiotis-facies bivalves from Western (Spain, Italy) and Middle Europe (Slo-venia, Croatia, Albania) trough north Africa (Morocco) and Arabian Peninsula (Oman, Arabian Emirates) up to Timor Island, Himalaya Mts (Nepal, China) and west-ern margin of both Americas (USA, Peru) indicates world-wide, rapid expansion of such Lithiotis-type bivalves (Leinfelder et al., 2002; Fraser et al., 2004; Krobicki et al., 2008). The Early Jurassic migration routes were connected both with break-up of Pangea and oceanic circulation, which facilitated high speed of distribution of larva’s of such oyster-like bivalves. |
| Micha? KROBICKI,Jan GOLONKA.2009.Palaeobiogeography of Early Jurassic Lithiotis-type bivalve buildups as recovery effect after Triassic/Jurassic mass extinction andtheir connections with Asian palaeogeograph[J].Acta Geoscientica Sinica,30(S1):30-33. |
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