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The wide, trans‐oceanic geographical distribution of myodocope ostracods during the Silurian (especially during the Ludlow and Pridoli epochs), and their widespread preservation in rocks of that age, permits the establishment of a transcontinental biostratigraphy of comparable resolution to coeval graptolite/chitinozoan/conodont biozones. Seven myodocope biozones, extending from the Homerian Stage,...
Thirteen ostracod species including two new species, Clavofabellina fukujiensis n. sp. and Bythocypris wangi n. sp., are reported from the Middle Shale Member of the Fukuji Formation, Devonian of central Japan. The ostracods demonstrate species‐links with South China, indicating that the Hida‐Gaien Terrane of central Japan shared biogeographical affinities with the shallow marine faunas of the South...
The oldest assumed ostracods appear in the fossil record from the TremadocianPaltodus deltifer conodont Biozone. Although geographically widespread these early ostracods have no obvious Cambrian antecedents. Their first appearance at ca. 485 Ma contrasts with molecular evidence that suggests a much earlier (latest Proterozoic or Cambrian) origin for ostracods. Some Cambrian bivalved arthropods such...
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