CICTERRA 20351
CENTRO DE INVESTIGACIONES EN CIENCIAS DE LA TIERRA
Unidad Ejecutora - UE
artículos
Título:
Chaniella, a new lower Tremadocian (Ordovician) brachiopod from northwestern Argentina and its phylogenetic relationships with basal rhynchonelliformeans
Autor/es:
BENEDETTO, J.L.
Revista:
PALAEONTOLOGISCHE ZEITSCHRIFT
Editorial:
SPRINGER HEIDELBERG
Referencias:
Año: 2009 vol. 83 p. 393 - 405
ISSN:
0031-0220
Resumen:
Abstract: A new genus and species of rhynchonelliformean brachiopod, Chaniella pascuali, is described from the lower Tremadocian Guayoc Chico Group of northwestern Argentina. Cladistic analysis shows that Chaniella is closest to the billingsellides Protambonites and Korinevskia. The particular combination of features of the new genus, in particular the presence of narrow lateral deltidial plates instead of a complete pseudodeltidium, lead to erect the new monotypic family Chaniellidae. Parsimony analysis supports the separation of clitambonitidines and billingsellidines as monophyletic clades within the order Billingsellida, and place the protorthide Arctohedra and the orthides Jivinella and Bohemiella close to the ancestry of the billingsellides.
