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Extinct genus of chelicerate From Wikipedia, the free encyclopedia
Pasternakevia is a genus of synziphosurine,[1] a paraphyletic group of fossil chelicerate arthropods.[2][3] Pasternakevia was regarded as part of the clade Planaterga.[2][4][5][6][3][7] Fossils of the single and type species, P. podolica, have been discovered in deposits of the Silurian period in Podolia, Ukraine.[7][2]
Pasternakevia Temporal range: | |
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Fossils and illustrations of P. podolica | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Subphylum: | Chelicerata |
Clade: | Prosomapoda |
Clade: | Planaterga |
Genus: | †Pasternakevia Selden & Drygant, 1987 |
Type species | |
†Pasternakevia podolica Selden & Drygant, 1987 |
The prosoma of Pasternakevia covered by a smooth, semicircular carapace with rounded genal cornua (posterolateral corner of carapace).[1] Within the 10-segmented opisthosoma, tergite of the first segment is reduced and usually hidden under the preceding carapace, while the second one is significantly arched and well-developed.[1] All but the first tergite possess well-developed pleurae (lateral extension). A complete telson is yet to be discovered.[1]
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