ACRITARCHSA REVIEW

@article{Martin1993ACRITARCHSAR,
  title={ACRITARCHSA REVIEW},
  author={F. Martin},
  journal={Biological Reviews},
  year={1993},
  volume={68}
}
1. Acritarchs are a polyphyletic group of unicellular organisms, essentially marine and fossil, with a very resistant organic membrane; the majority probably represent the cysts of microscopic, extinct eukaryote algae. This review gives a general account for the non‐specialist of their characteristics and affinities, but focuses, using selected examples, on their role as biostratigraphic tools for the specialist. 
New colonial acritarch Involusphaeridium gutschicki gen. et sp. nov. from the Lower Sappington Formation (Upper Famennian), western Montana, USA
Abstract Palynological investigation carried on the samples from the Unit 1 of the Sappington Formation (Upper Famennian, Montana, USA) reveals a presence of rich phytoplankton and microfloraExpand
Microfossils of eukaryotic cysts through time : A study of Precambrian-Ordovician organic-walled microbiota
TLDR
Microfossils of eukaryotic cysts through time through time are studied in a study of Precambrian-Ordovician organic-walled microbiota. Expand
Biofacies Analysis of Lower and Middle Jurassic Deposits of Siberia on Palynomorphs
Abstract The results of palynomorph biofacies analysis of the Lower and Middle Jurassic deposits of Western and Eastern Siberia are presented. A comprehensive study of different groups ofExpand
A new acritarch spike of Leiosphaeridia dessicata comb. nov. emend. from the Upper Permian and Lower Triassic sequence of India (Pranhita-Godavari Basin): Its origin and palaeoecological significance
Abstract The Permian–Triassic Mass Extinction (PTME) event was the largest bio crisis to date, adversely affecting life on land and sea. The PTME event is evidenced in India by the destruction ofExpand
Revision of the Cambro-Ordovician acritarch genus Vulcanisphaera Deunff, 1961
Abstract After its first description in Cambrian–Ordovician boundary strata from Gondwana, the acritarch genus Vulcanisphaera Deunff, 1961 has been found subsequently on most other paleocontinents,Expand
Revisiting the Great Ordovician Diversification of land plants: Recent data and perspectives
Abstract Recent molecular clock data suggest with high probability a Cambrian origin of Embryophyta (also called land plants), indicating that their terrestrialization most probably started about 500Expand
Palynomorph optical analyses for thermal maturity assessment of Upper Ordovician (Katian-Hirnantian) rocks from Southern Estonia
Abstract Application of integrated, multi-proxy optical analytical techniques for the assessment of thermal maturity of organic matter was tested in Katian to Hirnantian (Upper Ordovician) sedimentsExpand
Updating Frasnian miospore zonation from the Boulonnais (Northern France) and comparison with new data from the Upper Palaeozoic cover on the Brabant Massif (Western Belgium)
1. Introduction Former accurate palyno-analysis from the Upper Givetian to the Lower Famennian in the Boulonnais (Northern France), made some forty years ago, had to be re-evaluated. Consequently,Expand

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