The seabed from 240 million years ago. Visible is a nothosaurid tooth and a fragment of a gastralium.

SilesianTriassic

Tag: Gastralium

  • Reptilia indet. medial gastralium, 40/LMK

    Reptilia indet. medial gastralium, 40/LMK

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    Fragment of a medial abdominal rib (gastralium) of an indetermined reptile. The central process and a significant part of both distal portions are preserved.

  • Reptilia indet., medial gastralium, 23/LMK?

    Reptilia indet., medial gastralium, 23/LMK?

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    Reptilia indet. Dating uncertain – Upper Röt or Lower Muschelkalk (Anisian) Upper Silesia, Poland The specimen is an incomplete, fragmentary medial gastralium (“abdominal rib”) of an unidentified reptile. As mentioned in another post, the gastralia are non-diagnostic and do not support taxonomic identification. The specimen, although incomplete, clearly illustrates the morphology of these dermal bones. The…

  • Reptilia indet., lateral gastralium, 21/LMK?

    Reptilia indet., lateral gastralium, 21/LMK?

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    Reptilia indet. Dating uncertain – Upper Röt or Lower Muschelkalk (Anisian) Upper Silesia, Poland The specimen is the lateral gastralium (ventral rib) of an indeterminate reptile. Gastralia were present in almost all Triassic marine reptiles (the exception being Ichthyosauria). Their morphology is very similar, making such specimens non-diagnostic. The specimen is approximately 56 mm long and…