Orbiculatisinurostrum Sartenaer, 1984

Baliński, Andrzej, 2002, Frasnian-Famennian brachiopod extinction and recovery in southern Poland, Acta Palaeontologica Polonica 47 (2), pp. 289-305 : 299

publication ID

https://doi.org/ 10.5281/zenodo.13304675

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https://treatment.plazi.org/id/A96687CB-2437-FFBF-FF89-FBD403E5F91C

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scientific name

Orbiculatisinurostrum Sartenaer, 1984
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Genus Orbiculatisinurostrum Sartenaer, 1984 Orbiculatisinurostrum laeve ( Gürich, 1903)

Fig. 5C View Fig .

Leiorhynchus laevis Gür. ; Gürich 1903: 150, pl. 2: 12, 15. Leiorhynchus laevis Gürich ; Baliński 1979: 47–49; pl. 9: 1–7, fig. 16. Orbiculatisinurostrum laeve (Gürich) ; Baliński and Racki 1999:

fig. 1.7.

Material.—The material coming from trench Z−17 includes 2 complete shells and 68 fragmentary specimens.

Description.—Gürich’s species was re−described under its original generic name by Baliński (1979). In 1984 Sartenaer erected the new genus Orbiculatisinurostrum and designated L. laevis from Dębnik as the type species.

Remarks.—In trench Z−17 Orbiculatisinurostrum laeve appears at the base of the Middle Pa. triangularis Zone , i.e. about 1.3 m above the F–F boundary. It is one of the most abundant brachiopods in this part of the section. It was described earlier by Baliński (1979) from several neighboring outcrops of the Lower Famennian beds: Z−2, Z−3, Z−13, Z−15, and Z−16.

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