Definition of Ptyctodontid. Meaning of Ptyctodontid. Synonyms of Ptyctodontid

- The ptyctodontids ("folded-teeth") are placoderms of the order Ptyctodontida, containing the family Ptyctodontidae. With their big heads, big eyes, reduced...
- Materpiscis (Latin for mother fish) is a genus of ptyctodontid placoderm from the Late Devonian located at the Gogo Formation of Western Australia. Known...
- their skin, while ptyctodontids do not; the armoured plates and scales of holocephalians are made of dentine, while those of ptyctodontids are made of bone;...
- find confirmed the hypothesis that a sub-group of placoderms, called ptyctodontids, fertilized their eggs internally. Some fishes that fertilize their...
- Austroptyctodus gardineri is a small ptyctodontid placoderm fish from the Upper Devonian Gogo Formation of Western Australia. First described by Miles...
- Materpiscis, a ptyctodontid placoderm fish that is the oldest vertebrate known to give live birth...
- Campbellodus decipiens is an extinct ptyctodontid placoderm fish that lived around 380 million years ago (Late Devonian). Its fossil remains have been...
- Holoptychius's pectoral fins were placed high on the body. Ptyctodontida The ptyctodontids (beak-teeth) are an extinct monotypic order of unarmored placoderms...
- Ptyctodus is an extinct armour-plated fish of the late Devonian. Ptyctodus belongs to the family Ptyctodontidae and is of the class Placodermi. They share...
- the new genus Austroptyctodus by Long (1997) in his review of the Gogo ptyctodontid species, sti****ting that the genus Ctenurella as only coming from the...