- osteostracan
- os·te·os·tra·can
English syllables. 2014.
osteostracan
Look at other dictionaries:
osteostracan — noun extinct jawless fish of the Devonian with armored head • Syn: ↑cephalaspid • Hypernyms: ↑jawless vertebrate, ↑jawless fish, ↑agnathan • Member Holonyms: ↑Osteostraci, ↑ … Useful english dictionary
Placodermi — Taxobox name = Placodermi fossil range = fossil range|430|360Early/Mid Silurian – Late Devonian image width = 200px image caption = Dunkleosteus attacking Gorgonichthys regnum = Animalia phylum = Chordata subphylum = Vertebrata infraphylum =… … Wikipedia
Cephalaspis — Temporal range: Early Devonian 415–398 Ma … Wikipedia
Devonian Period — Interval of geologic time from 417 to 354 million years ago; it was the fourth period of the Paleozoic Era. During the Devonian, a giant continent was situated in the Southern Hemisphere (see Gondwana), and other landmasses were located in the… … Universalium
Остракодермы — Парафилетическая группа животных Doryaspis arctica и … Википедия
agnathan — noun eel shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms • Syn: ↑jawless vertebrate, ↑jawless fish • Hypernyms: ↑aquatic vertebrate • Hyponyms: ↑ostracoderm, ↑ … Useful english dictionary
cephalaspid — noun extinct jawless fish of the Devonian with armored head • Syn: ↑osteostracan • Hypernyms: ↑jawless vertebrate, ↑jawless fish, ↑agnathan • Member Holonyms: ↑Osteostraci, ↑ … Useful english dictionary
Cephalaspida — noun extinct group of armored fish like vertebrates; taxonomy is not clear • Syn: ↑Osteostraci, ↑suborder Osteostraci, ↑suborder Cephalaspida • Hypernyms: ↑animal order • Member Holonyms: ↑Ostracodermi, ↑ … Useful english dictionary
jawless fish — noun eel shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms • Syn: ↑jawless vertebrate, ↑agnathan • Hypernyms: ↑aquatic vertebrate • Hyponyms: ↑ostracoderm, ↑ … Useful english dictionary
jawless vertebrate — noun eel shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms • Syn: ↑jawless fish, ↑agnathan • Hypernyms: ↑aquatic vertebrate • Hyponyms: ↑ostracoderm, ↑heterostrac … Useful english dictionary
