Utente:Marrabbio2/Pesci: differenze tra le versioni
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Riga 411:
''[[Materpiscis]]'' ''(mother fish)'' is a [[genus]] of [[ptyctodontid]] [[Placodermi|placoderm]] from about 380 Ma. Known from only one specimen, it is unique in having an unborn [[embryo]] present inside, and with remarkable preservation of a mineralised placental feeding structure ([[umbilical cord]]). This makes ''Materpiscis'' the first known vertebrate to show [[vivipary|viviparity]], or giving birth to live young.{{r|Long2008}} The specimen was named ''Materpiscis attenboroughi'' in honour of [[David Attenborough]].{{r|BBC2008}}
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| [[Rhizodont]]s
| [[Rhizodont]]s were an order of lobe-finned fish which survived to the end of the Carboniferous, 377–310 Ma. They reached huge sizes. The largest known species, ''[[Rhizodus|Rhizodus hibberti]]'' grew up to 7 metres in length, making it the largest freshwater fish known.
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