Chondrostei
Chondrostei are primarily cartilaginous fish showing some degree of ossification. It is thought that the cartilaginous condition is derived, and that the ancestors of this group were bony fish with fully ossified skeletons. Members of this group share with the Elasmobranchii certain features such as the possession of spiracles, a heterocercal tail and the absence of scales. Nevertheless, the fossil record suggests they have more in common with the teleosts. The Chondrostei is probably a paraphyletic grouping; the fifty-two living species are divided among two orders, the Acipenseriformes (sturgeons and paddlefishes), and the Polypteriformes (reedfishes and bichirs).
AcrolepisAegicephalichthysAetheretmonAmblypterinaArctosomusAsarotusBendeniusBrachypareionBroovaliaBrowneichthysBurbonellaCaruichthysCharleuxiaCheirodopsisChichiaCoccocephalichthysCornuboniscusCosmolepisCosmoptychiusCycloptychiusDaedalichthysDecazellaDialipinaDictyopypeDorsolepisDrydeniusDwykiaEigiliaEurynotoidesFukangichthysGardinerichthys
class
Wikipage redirect
primaryTopic
Chondrostei
Chondrostei are primarily cartilaginous fish showing some degree of ossification. It is thought that the cartilaginous condition is derived, and that the ancestors of this group were bony fish with fully ossified skeletons. Members of this group share with the Elasmobranchii certain features such as the possession of spiracles, a heterocercal tail and the absence of scales. Nevertheless, the fossil record suggests they have more in common with the teleosts. The Chondrostei is probably a paraphyletic grouping; the fifty-two living species are divided among two orders, the Acipenseriformes (sturgeons and paddlefishes), and the Polypteriformes (reedfishes and bichirs).
has abstract
Chondrostei (do grego chondros ...... re a evolução da calcificação.
@pt
Chondrostei ChondrosteiFichier ...... mérique du Nord et en Eurasie.
@fr
Chondrostei are primarily cart ...... rmes (reedfishes and bichirs).
@en
Die Knorpelganoiden (Chondrost ...... Karbon bis zum Ende der Trias.
@de
I condrostei (Chondrostei Müll ...... s, cartilagine, e osteo, osso.
@it
Kostnochrzęstne[potrzebny przy ...... i, Afryce i Ameryce Północnej.
@pl
Kraakbeenganoïden (Chondrostei ...... ὀστέον ostéon betekent "been".
@nl
Los condrósteos (Chondrostei) ...... pendiente de reclasificación.
@es
Хрящевые ганоиды или хрящекост ...... водом (пузырь открытого типа).
@ru
الغضروعظميات أو غضروفيات العظم ...... ما قد يُوحي به مظهرها الخارجي.
@ar
thumbnail
Wikipage page ID
Wikipage revision ID
727,962,125
image2 caption
Nile bichir, Polypterus bichir
image2 width
image caption
Atlantic sturgeon, Acipenser oxyrinchus
image width
name
subdivision
Polypteriformes
subdivision ranks
comment
Chondrostei (do grego chondros ...... ar espaço aos órgãos internos.
@pt
Chondrostei ChondrosteiFichier ...... mérique du Nord et en Eurasie.
@fr
Chondrostei are primarily cart ...... rmes (reedfishes and bichirs).
@en
Die Knorpelganoiden (Chondrost ...... die Knorpelganoiden gestellt.
@de
I condrostei (Chondrostei Müll ...... a, piuttosto che andata persa.
@it
Kostnochrzęstne[potrzebny przy ...... i, Afryce i Ameryce Północnej.
@pl
Kraakbeenganoïden (Chondrostei ...... dan van een andere beenvisacht
@nl
Los condrósteos (Chondrostei) ...... pendiente de reclasificación.
@es
Хрящевые ганоиды или хрящекост ...... рыб произошли от палеонисков.
@ru
الغضروعظميات أو غضروفيات العظم ...... سماك بدلاً من أن تختفي تماماً.
@ar
label
Chondrostei
@en
Chondrostei
@es
Chondrostei
@it
Chondrostei
@pt
Chondrostéens
@fr
Knorpelganoiden
@de
Kostnochrzęstne
@pl
Kraakbeenganoïden
@nl
Хрящевые ганоиды
@ru
غضروعظميات
@ar