Trigoniidae of the Dogger of Łęczyca (Central Poland)
Halina Pugaczewska
Acta Palaeontologica Polonica 21 (1), 1976: 79-96
From the Dogger deposits of Łęczyca near Kutno there are described 12 pelecypod species representing 3 genera: Trigonia Bruguiere, Myophorella Bayle, and Vaugonia Crickmay. One new species, Trigonia crebraecostata sp.n., is described. The results of studies on morphology, variability, development of shell, as well as on shell structure and microornamentation are given.
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