Digestive structures in Middle Ordovician trilobite Prionocheilus Rouault 1847, from the Barrandian area of Czech Republic
Fatka, O. (Charles University (Praga, República Txeca). Institute of Geology and Palaeontology)
Budil, P. (Czech Geological Survey)

Date:	2018
Abstract:	Remains of a digestive system from a slightly damaged articulated specimen of the comparatively rare bathycheilid trilobite Prionocheilus vokovicensis(ŠNAJDR, 1956) are described for the first time. The specimen comes from the Middle Ordovician Šárka Formation of the Prague Basin and contains the midgut region of the digestive system preserved through the axial region of glabella and six anterior thoracic segments. The anterior-most part of the digestive system is unknown as the anterior glabellar lobes are not preserved in the studied specimen. In the cephalic shield, the remains of two pairs of gut diverticulae are seen in the posterior region of the glabella. Remains of five pairs of small cavities developed in the axis of the first six thoracic segments represent the remains of thoracic gut diverticulae. The discussed specimen possess the first undoubted remain of digestive structures established within the family Bathycheilidae (Pribyl, 1953).
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l'obra original i es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Prionocheilus ; Digestive tract ; Ordovician ; Barrandian area ; Czech republic
Published in:	Geologica acta, Vol. 16 Núm. 1 (March 2018) , p. 65-73 (Articles) , ISSN 1696-5728

Adreça alternativa: https://raco.cat/index.php/GeologicaActa/article/view/335936
Adreça alternativa: https://revistes.ub.edu/index.php/GEOACTA/article/view/GeologicaActa2018.16.1.4
DOI: 10.1344/GeologicaActa2018.16.1.4

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