DOAJ Open Access 2017

THE VERTEBRAL COLUMN OF THE TRIASSIC FISH <em>SAURICHTHYS</em> (ACTINOPTERYGII) AND ITS STRATIGRAPHICAL SIGNIFICANCE

ANDREA TINTORI

Abstrak

The Norian beds of the Southern Calcareous Alps have yielded at least four species belonging to Saurichthys. Their vertebral column has large praezygapophyses, which, in each of these nominai species, attain a different relative length. The latter is inversely proportional to age: in fact, the youngest two, coeval species have the longest praezygapophyses, at least six times as long as a vertebral segment. Such a conspicuous change in an otherwise conservative genus, is here relateci to a major ichthyofaunal break that saw the florishing of the Pholidophoridae. The relative length of the praezygapophyses can be a very useful stratigraphical means, at least in the Norian (Upper Triassic).

Topik & Kata Kunci

Geology Paleontology

Penulis (1)

ANDREA TINTORI

Format Sitasi

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TINTORI, A. (2017). THE VERTEBRAL COLUMN OF THE TRIASSIC FISH <em>SAURICHTHYS</em> (ACTINOPTERYGII) AND ITS STRATIGRAPHICAL SIGNIFICANCE. https://doi.org/10.13130/2039-4942/9049

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Informasi Jurnal

Tahun Terbit: 2017
Sumber Database: DOAJ
DOI: 10.13130/2039-4942/9049
Akses: Open Access ✓