Useful english dictionary. 2012.
Agnatha — noun superclass of eel shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms • Syn: ↑superclass Agnatha • Hypernyms: ↑class • Member Holonyms: ↑Vertebrata, ↑subphylum Vertebrata, ↑ … Useful english dictionary
Agnatha — (Greek, no jaws ) is a paraphyletic [cite book|last=Purnell|first=M. A.|authorlink=|editor=Derek E. G. Briggs and Peter R. Crowther|year=2001|title=Palaeobiology II|publisher=Blackwell Publishing|location=Oxford|isbn=0 632 05149 3|page=p401; Note … Wikipedia
agnathan — /ag neuh theuhn/, n. 1. any member of the vertebrate class Agnatha. adj. 2. agnathous. [AGNATH(A) + AN] * * * ▪ fish Introduction any member of the group of primitive, jawless fishes (fish) that includes the lampreys (lamprey) (order… … Universalium
agnathan — 1. adjective Belonging or pertaining to the superclass Agnatha, the jawless vertebrates. Haikouichthys is one of three species of jawless (or agnathan) fish to be found in the Early Cambrian period. 2. noun A member of the superclass Agnatha of… … Wiktionary
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
Ostracodermi — noun extinct group of armored jawless vertebrates; taxonomy is not clear • Syn: ↑order Ostracodermi • Hypernyms: ↑animal order • Member Holonyms: ↑Agnatha, ↑superclass Agnatha • Member Me … Useful english dictionary
Thelodonti — Temporal range: 453–359 Ma … Wikipedia
Craniata — noun fishes; amphibians; reptiles; birds; mammals • Syn: ↑Vertebrata, ↑subphylum Vertebrata, ↑subphylum Craniata • Hypernyms: ↑phylum • Member Holonyms: ↑Chordata, ↑ … Useful english dictionary
subphylum Craniata — noun fishes; amphibians; reptiles; birds; mammals • Syn: ↑Vertebrata, ↑subphylum Vertebrata, ↑Craniata • Hypernyms: ↑phylum • Member Holonyms: ↑Chordata, ↑ … Useful english dictionary
subphylum Vertebrata — noun fishes; amphibians; reptiles; birds; mammals • Syn: ↑Vertebrata, ↑Craniata, ↑subphylum Craniata • Hypernyms: ↑phylum • Member Holonyms: ↑Chordata, ↑ … Useful english dictionary
