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Issue: Vol. 4495 No. 1: 4 Oct. 2018
Type: Monograph
Published: 2018-10-03
DOI: 10.11646/zootaxa.4495.1.1
Page range: 1–64
Abstract views: 170
PDF downloaded: 8

Sieve-type pore canals in the Timiriaseviinae—A contribution to the comparative morphology and the systematics of the Limnocytheridae (Ostracoda, Crustacea)

University of Graz, Nawi Graz Geocenter, Heinrichstrasse 26, 8010 Graz, Austria.
Universidade de Lisboa, Faculdade de Ciências, Departamento de Geologia and Instituto Dom Luiz (IDL), Campo Grande, C6, 4°, 1749-016 Lisboa, Portugal.
Senckenberg Forschungsinstitut Frankfurt, Senckenberganlage 25, 60325 Frankfurt-am-Main, Germany.
16, Rue Mégret, 33400, Talence, France.
Universalmuseum Joanneum, Department for Geology & Palaeontology, Weinzöttlstrasse 16, 8045 Graz, Austria.
University of Bucharest, Faculty of Geology and Geophysics, Department of Geology, Bd. Balcescu 1, 010041 Bucharest, Romania.
Western Australian Museum, Collections and Research, 49 Kew Street, Welshpool, WA, 6106, Australia.
Senckenberg Forschungsinstitut Frankfurt, Senckenberganlage 25, 60325 Frankfurt-am-Main, Germany.
Eötvös Loránd University, Department of Palaeontology, Pázmány Péter Stny. 1/C, 1117 Budapest, Hungary.
Abant İzzet Baysal University, Department of Biology, Faculty of Arts and Science, 14280 Bolu, Turkey.
University of Graz, NAWI Graz Geocenter, Heinrichstrasse 26, 8010 Graz, Austria.
Universidade de Lisboa, Faculdade de Ciências, Unidade de Microscopia, Campo Grande, C2, 1749-016 Lisboa, Portugal.
Crustacea Non-marine ostracods valve morphology systematics Gomphodellini Danielopol Cabral & Lord nov. tribe

Abstract

Examination of normal pore canals, especially sieve-type pore canals, in living and fossil representatives of ten genera of the family Limnocytheridae, subfamily Timiriaseviinae, has revealed important diversity of structure. These complex pore canals have been studied via high-resolution scanning electron microscopy (the Cartographic Method) and analysed via the application of newly devised indices to assess patterns of consistency and variation in both detailed structure of individual pores and of their distribution on the calcified valve. The timiriaseviine taxa are compared with species of the genera Limnocythere, sub-family Limnocytherinae and Cyprideis (family Cytherideidae). The relationship between the living animal and its aquatic environment is discussed in the light of previous studies and of new evidence herein. The importance of normal pore canals for systematics is highlighted by the recognition and definition of the new tribe Gomphodellini Danielopol, Cabral & Lord nov. tribe, subfamily Timiriaseviinae, family Limnocytheridae.

 

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