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Representatives of the Late Devonian ammonoid family Cymaclymeniidae werestudied for their conch ontogeny. Two methods were applied: (1) the analysisof classical morphometric conch parameters and (2) an outline analysis ofthe aperture using elliptic Fourier analysis. Application of both methodsleads to similar results, allowing a separation of some of the species bymeans of their ontogenetic pathways. The new species Procymaclymenia ebbighausenin. sp., Cymaclymenia subvexa n. sp.,Cymaclymenia formosa n. sp., Cymaclymenia lambidia n. sp.,Cymaclymenia carnata n. sp., Cymaclymenia aulax n. sp.,Cymaclymenia serotina n. sp. and Postclymenia calceola n. sp. are described in thesystematic part

A morphometric approach to conch ontogeny of &lt;i&gt;Cymaclymenia&lt;/i&gt; and related genera (Ammonoidea, Late Devonian)

A morphometric approach to conch ontogeny of <i>Cymaclymenia</i> and related genera (Ammonoidea, Late Devonian)