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Rhenanida ("Rhine fish") were flattened, ray-like, bottom-dwelling predators with large, upturned mouths that lived in marine environments. The rhenanids were once presumed to be the most primitive, or at least the closest to the ancestral placoderm, as their armour was made of unfused components—a mosaic of tubercles—as opposed to the ...
Palaeogadus is an extinct genus of prehistoric bony fish. [ 1 ] [ 2 ] It was a nektonic carnivore found in coastal and estuarine marine environments, with fossils found from the Oligocene to Miocene at sites in Denmark , Germany , Poland , Georgia , and Azerbaijan .
Dunkleosteus is an extinct genus of large arthrodire ("jointed-neck") fish that existed during the Late Devonian period, about 382–358 million years ago.It was a pelagic fish inhabiting open waters, and one of the first vertebrate apex predators of any ecosystem.
Cretatriacanthus is an extinct genus of prehistoric marine ray-finned fish from the Late Cretaceous.It contains a single species, C. guidottii from the late Campanian or early Maastrichtian of Nardò, Italy. [2]
Watsonulus is an extinct genus of prehistoric ray-finned fish that lived during the Early Triassic epoch in what is now Madagascar. [2] [1] It may have also existed in what is now Himachal Pradesh, India, during the Induan age (Early Triassic). [3] The type species, described by Jean Piveteau, is Watsonia eugnathoides.
Poracanthodes is a genus of acanthodian fish belonging to the Ischnacanthidae family. It lived during the Late Silurian period. Its fossils have been discovered in Estonia and China .
Phareodus is a genus of freshwater fish from the Paleocene to Eocene of North America. This genus includes at two species, [ 2 ] P. testis ( Leidy , 1873) and P. encaustus of North America. Formerly included were P. muelleri of Europe, now accepted in the related genus Brychaetus as B. muelleri and P. queenslandicus of Australia which was later ...
Anomoeodus is an extinct genus of prehistoric marine ray-finned fish belonging to the family Pycnodontidae.This genus primarily lived during the mid-to-late Cretaceous period, ranging from the Albian to the very end of the Maastrichtian age, and possibly into the Danian.