High diversity dinoflagellate cyst assemblages from the Late Triassic of southern England: new information on early dinoflagellate evolution and palaeogeography
2006; Wiley; Volume: 39; Issue: 4 Linguagem: Inglês
10.1080/00241160600847538
ISSN1502-3931
AutoresRaffaella Bucefalo Palliani, Nicoletta Buratti,
Tópico(s)Geological formations and processes
ResumoAbundant and diverse dinoflagellate cyst assemblages from the Rhaetian of southern England are characterized by the occurrence of a new species of Rhaetogonyaulax, some undescribed taxa and numerous forms with Arctic and Australasian affinities. The dinoflagellate cyst assemblages permit a discussion of the palaeogeographic distribution of dinoflagellate cysts in the Late Triassic. The hypothesis on a Late Triassic migration event of organic walled microplankton from higher latitudes to the Boreal domain is presented.
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