Ostracoderm (redirect from Ostracodermi)
without noticeable decline for about 30 million years. The Subclass Ostracodermi has been placed in the division Agnatha along with the extant Subclass...
16 KB (1,032 words) - 00:26, 25 April 2024
infraphyla and classes: Agnatha or jawless fish, which include: †Conodonta †Ostracodermi Cyclostomi (hagfish and lampreys) Gnathostomata or jawed vertebrates...
78 KB (7,108 words) - 04:02, 7 July 2024
(jawless fish) Subclass Cyclostomata (hagfish and lampreys) Subclass Ostracodermi (armoured jawless fish) † Class Chondrichthyes (cartilaginous fish) Subclass...
4 KB (526 words) - 12:20, 7 February 2024
(jawless fish) Subclass Cyclostomata (hagfish and lampreys) Subclass Ostracodermi (armoured jawless fish) † Class Chondrichthyes (cartilaginous fish) Subclass...
16 KB (1,767 words) - 14:22, 12 March 2024
Pteraspidomorphi, which is one of the major classes of the paraphyletic group Ostracodermi. Drepanaspis sp., National Museum of Nature and Science, Tokyo, Japan...
21 KB (2,044 words) - 20:25, 4 July 2024