Acanthodii
Acanthodii or acanthodians is an extinct class of gnathostomes (jawed fishes), typically considered a paraphyletic group. They are currently considered to represent a grade of various fish lineages leading up to the extant Chondrichthyes, which includes living sharks, rays, and chimaeras. Acanthodians possess a mosaic of features shared with both osteichthyans (bony fish) and chondrichthyans (cartilaginous fish). In general body shape, they were similar to modern sharks, but their epidermis was covered with tiny rhomboid platelets like the scales of holosteians (gars, bowfins). Paraphyletic groupings are problematic, as one can not talk precisely about their phylogenic relationships, their characteristic traits and literal extinction.
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Acanthodii
Acanthodii or acanthodians is an extinct class of gnathostomes (jawed fishes), typically considered a paraphyletic group. They are currently considered to represent a grade of various fish lineages leading up to the extant Chondrichthyes, which includes living sharks, rays, and chimaeras. Acanthodians possess a mosaic of features shared with both osteichthyans (bony fish) and chondrichthyans (cartilaginous fish). In general body shape, they were similar to modern sharks, but their epidermis was covered with tiny rhomboid platelets like the scales of holosteians (gars, bowfins). Paraphyletic groupings are problematic, as one can not talk precisely about their phylogenic relationships, their characteristic traits and literal extinction.
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Acanthodii iraungitako klase b ...... o xafla sendoz babestua zuten.
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Acanthodii or acanthodians is ...... d up until the Permian period.
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Acanthodii är en utdöd underkl ...... en kraftig tagg i framkanten.
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Acanthodii é uma classe de pei ...... amados de tubarões espinhados.
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De Acanthodii (ook wel stekelh ...... voorouders van de beenvissen.
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Els acantodis (Acanthodii), ta ...... n dotades de capacitat motriu.
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Fałdopłetwe, akantody (Acantho ...... płetwych jest kopalny rodzaj .
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Gli acantodi (Acanthodii), a v ...... 430 a 250 milioni di anni fa).
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Les acanthodiens, ou Acanthodi ...... seuses de formes irrégulières.
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Los acantodios (Acanthodii, de ...... (hace 251 millones de años).
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Wikipage revision ID
1.021.957.558
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authority
Owen, 1846
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fossil range
(Survival in modern Chondrichthyes)
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image caption
Acanthodes sp.
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subdivision
*Acanthodiformes
*"Climatiifor ...... acanthidae
*Ischnacanthiformes
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subdivision ranks
Orders
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taxon
Acanthodii
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wikiPageUsesTemplate
subject
hypernym
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Acanthodii iraungitako klase b ...... o xafla sendoz babestua zuten.
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Acanthodii or acanthodians is ...... traits and literal extinction.
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Acanthodii är en utdöd underkl ...... en kraftig tagg i framkanten.
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Acanthodii é uma classe de pei ...... amados de tubarões espinhados.
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De Acanthodii (ook wel stekelh ...... voorouders van de beenvissen.
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Els acantodis (Acanthodii), ta ...... en les espècies d'aigua dolça.
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Fałdopłetwe, akantody (Acantho ...... gromadzie wyróżnia się rzędy:
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Gli acantodi (Acanthodii), a v ...... 430 a 250 milioni di anni fa).
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Les acanthodiens, ou Acanthodi ...... ondrichthyes encore existants.
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Los acantodios (Acanthodii, de ...... (hace 251 millones de años).
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label
Acanthodii
@de
Acanthodii
@en
Acanthodii
@es
Acanthodii
@eu
Acanthodii
@fr
Acanthodii
@it
Acanthodii
@nl
Acanthodii
@pt
Acanthodii
@sv
Acantodis
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