caa a22 4500 465734863 CHVBK 20180323111752.0 cr unu---uuuuu 170327e19900601xx s 000 0 ger 10.1007/BF02985924 doi (NATIONALLICENCE)springer-10.1007/BF02985924 Aurikirkbya wordensis (hamilton): ein vermutlich filtrierender palaeocopider ostracode [Elektronische Daten] [Gerhard Becker, Franciszek Adamczak] The valves ofAurikirkbya wordensis (Hamilton, 1942) from the Upper Permian, Word Formation of W Texas (USA), show a crenulated contact groove in the larger valve and smooth contact list in the smaller one. The right valve is usually the larger but occasionally inversion of valves take place. The contact elements of the free margin of valves are discussed in terms of functional morphology. In addition, the muscle-scar areas and the carapace outline have also been regarded. Based on the new discoveries, it is suggested thatA. wordensis was a nectobenthonic filter-feeder. The evidence from the valve interiors is not consistent with a platycopine position for the kirkbyacean taxa. E. Schweizerbart'sche Verlagsbuchhandlung, 1990 Becker Gerhard Geologisch-Paläontoloeisches Institut der Johann-Wolfgang-Goethe-Universität, Senckenberg-Anlage 32-34, D-6000, Frankfurt am Main 1 aut Adamczak Franciszek Geologiska Institutionen, Stockholms Universitet, S-10691, Stockholm aut Paläontologische Zeitschrift Springer-Verlag 64/1-2(1990-06-01), 91-102 0031-0220 64:1-2<91 1990 64 12542 https://doi.org/10.1007/BF02985924 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02985924 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Becker Gerhard Geologisch-Paläontoloeisches Institut der Johann-Wolfgang-Goethe-Universität, Senckenberg-Anlage 32-34, D-6000, Frankfurt am Main 1 aut NATIONALLICENCE 700 1- Adamczak Franciszek Geologiska Institutionen, Stockholms Universitet, S-10691, Stockholm aut NATIONALLICENCE 773 0- Paläontologische Zeitschrift Springer-Verlag 64/1-2(1990-06-01), 91-102 0031-0220 64:1-2<91 1990 64 12542 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer