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- Redescription of Parexus recurvus, an Early Devonian acanthodian from ...Key words: Parexus, Acanthodii, Chondrichthyes, Devonian, Seretolepis, Climatiidae, stem gnathostome. PAREXUS is a genus of early jawed fishes that, in the light of new data presented here, could prove valuable in determining relationships among acanthodians, the fossil ‘spiny sharks’ as first characterized by nineteenthcentury investigators.
- Parexus - WikipediaParexus is an extinct genus of acanthodian fish. Acanthodians are often referred to as ‘spiny sharks’, although acanthodians are not true sharks and evolved perhaps 50 million years earlier than sharks. Acanthodians share several features with bony fish and cartilaginous fish; they often have spines supporting their fins.
- Redescription of Parexus recurvus, an Early Devonian acanthodian from ...Redescription of Parexus recurvus, an Early Devonian acanthodian from the Midland Valley of Scotland. C. Burrow, M. Newman, +1 author. J. D. Den Blaauwen. Published 24 July 2013. Geology. Alcheringa: An Australasian Journal of Palaeontology. Parexus Agassiz was one of the first Early Devonian ‘spiny sharks’ to be described.
- Category:Parexus - Wikimedia CommonsHelp. Category: Parexus. From Wikimedia Commons, the free media repository. Domain : Eukaryota • Regnum : Animalia • Phylum : Chordata • Subphylum : Vertebrata • Infraphylum : Gnathostomata • Classis : Chondrichthyes • Familia : Climatiidae • Genus: Parexus Agassiz, 1845. Subcategories. This category has only the following subcategory. L.
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