original description
Troschel, F. H. 1851. Ueber die Gattung Tripylus. Archiv für Naturgeschichte 17, 67-74., available online at https://www.biodiversitylibrary.org/page/13706568
page(s): 72 [details]
basis of record
David, B., T. Choné, A. Festeau & C. de Ridder (2004). Antarctic Echinoids, an Interactive Database. Editions Universitaires Dijon. Cd Rom. (look up in IMIS) [details]
additional source
Neave, Sheffield Airey. (1939-1996). Nomenclator Zoologicus vol. 1-10 Online. [developed by uBio, hosted online at MBLWHOI Library]., available online at http://ubio.org/NomenclatorZoologicus/ [details]
From editor or global species database
Taxonomy Mortensen (1951: p. 263) treated Pseudabatus as subgenus of Abatus because he felt that "the main character on which Koehler based his genus Pseudabatus, the larger distance from the apical system at which the marsupia begin, is scarcely sufficient for a generic distinction". There is some uncertainty regarding the true status of that genus, as it may differ by other, additional autapomorphies (compare A. Smith, "The Echinoid Directory"), yet a formalized revision of Antarctic palaeopneustids (Abatus, Amphipneustes, Pseudabatus) has yet to be published. [details]
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