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TitreEarly Triassic conodont clusters from South China: revision of the architecture of the 15-element apparatuses of the superfamily Gondolelloidea
AuteurGoudemand, N; Orchard, M J; Tafforeau, P; Urdy, S; Brühwiler, T; Brayard, A; Galfetti, T; Bucher, H
SourcePalaeontology 2012 p. 1-14,
Séries alt.Secteur des sciences de la Terre, Contribution externe 20100438
Documentpublication en série
Mediaen ligne; numérique
Lat/Long OENS107.0000 110.0000 23.0000 21.0000
SujetsTrias inférieur; assemblages fossiles; distribution de fossiles; morphologie des fossiles; taxonomie; biostratigraphie; paléontologie systématique; paléontologie; Mésozoïque; Trias
Illustrationsstratigraphic columns; plates; location maps
Programmebassins sédimentaires du Yukon, GEM : La géocartographie de l'énergie et des minéraux
Diffusé2012 08 02
Résumé(disponible en anglais seulement)
Several fused clusters of conodont elements of the genera Neospathodus and Novispathodus were recovered from limestone beds at the Dienerian - Smithian and Smithian - Spathian boundaries, respectively, from several localities in Guangxi province, South China. Conodont clusters are otherwise extremely rare in the Triassic, and these are first described for the Early Triassic. The exceptional specimens partially preserve the relative three-dimensional position and orientation of ramiform elements and are therefore extremely
important for testing hypotheses on the architecture of apparatuses. These specimens partly confirm the previous reconstruction
of the Novispathodus apparatus by Orchard. Within apparatuses of members of superfamily Gondolelloidea, elements previously identified as occupying the S1 and S2 positions instead occupy the S2 and S1 positions. Similarly, within apparatuses of members of the subfamily Novispathodinae, elements previously referred to S3 and S4 positions are reinterpreted to have occupied S4 and S3 positions,