Danielopolina kornickeri sp n. (Ostracoda, Thaumatocypridoidea) from a western Australian anchialine cave:: morphology and evolution
Danielopolina kornickeri sp n. (Ostracoda, Thaumatocypridoidea) from a western Australian anchialine cave:: morphology and evolution
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DOI:
10.1046/j.1463-6409.2000.00027.x
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发表时间:
2000-01-01
影响因子:
2.5
通讯作者:
Humphreys, WF
中科院分区:
文献类型:
--
作者:
Danielopol, DL;Baltanás, A;Humphreys, WF
Danielopolina kornickeri sp. n. is described from an anchialine cave in Western Australia. This is the first Danielopolina species occurring outside of the Western Hemisphere (Atlantic and Eastern Pacific Oceans and Islands). A cladistic analysis indicates that this species is a primitive taxon of the anchialine cavernicolous clade; the deep-sea dwelling species Danielopolina carolynae appears more primitive and does not cluster with the other Danielopolina species. The ecological environment of D. kornickeri is described. Detailed discussions consider: (1) the shell ornamentation and its relevance to the phylogeny of the Thaumatocyprididae; (2) the antero-dorsal node of the Permian Thaumatomma (hypothesized here to be an ocular lens which regressed in the post-Palaeozoic thaumatocypridids); (3) the distal chaetotaxy of the antennae (hypothesized to perform the chemosensorial function known in the aesthetascs of other myodocopids or podocopids); (4) palaeobiogeographical arguments for a shallow marine origin of cavernicolous species Danielopolina.