Lancetfish teeth (Neoteleostei, Alepisauroidei) from the Early Cretaceous of Alcaine, NE Spain

Author: Kriwet, Jürgen

Source: Lethaia, Volume 36, Number 4, December 2003 , pp. 323-331(9)

Publisher: Taylor and Francis Ltd

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Abstract:

Isolated teeth of fossil lancetfishes (Neoteleostei, Alepisauroidei) are reported from Early Cretaceous strata of the Oliete subbasin (Iberian basin) in NE Spain. These are the oldest remains attributable to alepisauriform teleosts. The fossil-bearing strata are dated as lower Barremian. The teeth were recovered from shallow marine to lagoonal sediments. They closely resemble teeth of the fossil alepisauriforms Enchodus and Cimolichthys in overall morphology. The combination of fang-like morphology, sculpture consisting of apico-basal striations, postapical barb, absence of distal cutting edge, and wide pulp cavity surrounded by a rather thin layer of dentine is interpreted as the most basal tooth pattern in alepisauriforms. These remains may be isolated, but this study emphasizes the true value of such remains for palaeobiological studies, predicting the fossils provide characters for phylogenetic analyses.

Keywords: Alcaine; Early Cretaceous; Neoteleostei; Spain; alepisauroids; morphology

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/00241160310006484

Publication date: December 1, 2003

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