Platinx

Extinct genus of ray-finned fishes From Wikipedia, the free encyclopedia

Platinx is an extinct genus of marine ray-finned fish that inhabited the northern Tethys Ocean during the early to middle Eocene.[1] It was the last surviving member of the ancient order Crossognathiformes, which was a dominant and successful group throughout the preceding Mesozoic era.[2][3]

Quick facts Scientific classification, Binomial name ...
Platinx
Temporal range: Early to Middle Eocene
Specimen from Monte Bolca
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Crossognathiformes
Family: Pachyrhizodontidae
Genus: Platinx
Agassiz, 1835
Species:
P. macropterus
Binomial name
Platinx macropterus
Synonyms
  • Platinx cognitus Daniltshenko, 1968
  • Platinx elongatus Agassiz, 1835
  • Platinx intermedius Eastman, 1905
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It contains a single species, P. macropterus, whose remains are primarily known from the late Ypresian-aged rocks of Monte Bolca, Italy.[4] However, specimens have also been recovered from the earliest-Ypresian Danata Formation of Turkmenistan (sometimes placed in their own distinct species, P. cognitus Daniltshenko, 1968, although these do not appear to be distinct enough from P. macropterus),[3] as well as incomplete remains from the middle Eocene of Syria.[5]

Fossil specimen

The extinct bonytongues Monopteros and Thrissopterus, which co-occur with Platinx in Monte Bolca, were for a time briefly reclassified as a species of Platinx (P. gigas), although they are now known to be distinct.[3][6]

References

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