Morphometric methods in determination of ammonite species, exemplified through Balatonites shells (Middle Triassic)
Morphometric methods in determination of ammonite species, exemplified through Balatonites shells (Middle Triassic)
复制标题
确定菊石种类的形态测量方法，以巴拉顿石壳（中三叠世）为例
DOI：
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发表时间：
1992
影响因子：
1.4
通讯作者：
F. Tatzreiter
中科院分区：
文献类型：
--
作者：
J. Hohenegger;F. Tatzreiter
Specimens of the ammonite genus Balatonites from the Middle Triassic of Austria and Hungary are analyzed morphometrically to obtain growth invariant character states. A new method transforming growth dependent qualitative characters into age invariant metric variables is developed. Weighted standardization as a method preserving univariate discriminatory efficiency is applied to character states preceding numerical classification procedures, resulting in a clearer separation of homogeneous groups in comparison to simple standardized data. All clustering and ordination procedures produce two identical classes, which are interpreted according to the cohesion concept as distinct biological species. In adherence to the taxonomic rules they are denominated as Balatonites egregius Arthaber and Balatonites balatonicus (Mojsisovics).
