On the status ofKaiparaitesMatsumoto, 1955 (Cretaceous; Ammonoidea:Kossmaticeratidae)
作者: Michael R. Cooper
刊名: Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen, 2019, Vol.294 (3), pp.307-310
来源数据库: Schweizerbart Journal
DOI: 10.1127/njgpa/2019/0861
关键词: AmmonoideaCretaceousKossmaticeratidaePhylogenyKaiparaites
英文摘要: The kossmaticeratid ammonite Kaiparaites was on its inceptionsynonymized by its author (Matsumoto 1955)with Natalites (Collignon1954). However, close comparison of the type species of these two genera showsthem to be morphologically and stratigraphically distinct. Whereas SantonianNatalites shares the flexed constrictions of late Turonian–ConiacianKossmaticeras, the straight constrictions of late Campanian –Maastrichtian Kaiparaites are shared with Caledonites,Gunnarites, Grossouvrites andJacobites. Consequently, Kaiparaites is resurrectedfrom the synonymy of Natalites and demonstrates that, under phylogeneticconsideration, characters first thought to be of prime taxonomic significance actuallyturn out to be secondary. Since treatment of Natalites as a subgenus ofKossmaticeras emphasizes...
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  • Cretaceous 白垩纪
  • status 状态