Oryctos
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Accès privé :
| volume 5, 2004 |
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Marie-Céline Buchy , Philippe Taugourdeau & Philippe Janvier. Stomach contents of a Lower Triassic ichthyosaur from Spitzbergen. Oryctos 5, 47-55.
The stomach contents of a Lower Triassic ichthyosaur from Spitzbergen are here described for the first time. The stomach contents are now lost, and the description relies on unpublished photographs and a description made in the 70’s. The specimen is a juvenile that has been previously identified as Grippia longirostris, but the re-examination of the specimen and original literature contradicts this attribution. It is here provisionally assigned to cf. Merriamosaurus hulkei. Its stomach contents consist of black hooks identified as remnants of belemnoid cephalopods and annelids, which have never before been described in this context. The hypothesis that these annelid remains represent the gastric contents of the preyed cephalopods is discussed. The specimen would then represent one of the rare examples of a preserved partially preserved Mesozoic marine trophic web.
Keywords: Ichthyosauria, Lower Triassic, diet, cephalopod hooks, annelids, stomach contents
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