The Late Devonian trematid lingulate brachiopod Schizobolus from Poland

A new species of the poorly known lingulate brachiopod Schizobolus is described from the Famennian (Upper Devonian) of Poland. S . polonicus sp. n. has a triangular pedicle notch and a small listrium, indicating that it belongs to the Trematidae within the superfamily Discinoidea. S . polonicus reta...

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Bibliographic Details
Published inActa palaeontologica Polonica Vol. 44; no. 3; p. 335
Main Authors Balinski, A., Holmer, L. E.
Format Journal Article
LanguageEnglish
Published 01.09.1999
Subjects
Brachiopoda
Discinoidea
larval shell
Late Devonian
Poland
systematics
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Summary:A new species of the poorly known lingulate brachiopod Schizobolus is described from the Famennian (Upper Devonian) of Poland. S . polonicus sp. n. has a triangular pedicle notch and a small listrium, indicating that it belongs to the Trematidae within the superfamily Discinoidea. S . polonicus retains some linguloid features, such as a linguloid-like 'pedicle groove' and a V-shaped imprint of the pedicle nerve. The disturbance band, which occurs in the apical part of the larval shell, probably delimits two stages of growth, namely pre-larval (embryonic?) and larval, or, early-larval and late-larval. S. polonicus is the youngest member of the genus, and of the family Trematidae. Five incompletely preserved discinids from the Famennian of Łagów are described as Trematidae gen. et sp. indet
ISSN:0567-7920