Agnath vs Agnathan - What's the difference?
agnath | agnathan | Synonyms |
(zoology) An agnathan.
* 1979 , Stephen C. Wood, Evolution of Respiratory Processes , Marcel Dekker, ISBN 0-8247-6793-4, page 218:
* 1996 , George Christopher Williams, Adaptation and Natural Selection , Princeton University Press, ISBN 0-691-02615-7, page 51:
* 2002 , Harold J. Morowitz, The Emergence of Everything , Oxford University Press, ISBN 0-19-513513-X, page 113:
(zoology) Belonging or pertaining to the superclass Agnatha, the jawless vertebrates.
* 2005 , Tim Haines and Paul Chambers, The Complete Guide to Prehistoric Life , BBC Books, page 20:
(zoology) A member of the superclass Agnatha of jawless vertebrates.
* 1956 , D. R. Newth, "On the Neural Crest of the Lamprey Embryo", Journal of Embryology and Experimental Morphology , volume 4, page 358:
* 1992 , Peter J. Hanley et al., "Hagfish Humoral Defense Protein Exhibits Structural and Functional Homology with Mammalian Complement Components", Proceedings of the National Academy of Sciences , volume 89, page 7910:
Agnath is a synonym of agnathan.
In zoology|lang=en terms the difference between agnath and agnathan
is that agnath is (zoology) an agnathan while agnathan is (zoology) a member of the superclass agnatha of jawless vertebrates.As nouns the difference between agnath and agnathan
is that agnath is (zoology) an agnathan while agnathan is (zoology) a member of the superclass agnatha of jawless vertebrates.As an adjective agnathan is
(zoology) belonging or pertaining to the superclass agnatha, the jawless vertebrates.agnath
English
Noun
(en noun)- Evolution of vertebrates was accompanied by a gradual increase in oxygen availability, from the irrespirable atmosphere of the Precambrian to a PO? at 7 mmHg with the first vertebrates (agnaths ), to the present sea level PO? value of 160 mmHg with the first reptiles.
- The gnathostomes almost entirely replaced the agnaths , presumably because they were more effective fishes.
- Thus, although tunicates are presumably intermediate between flatworms and agnaths', the larval tunicate more closely resembles the flatworm and adult ' agnath .
agnathan
English
(wikipedia agnathan)Adjective
(en adjective)- Haikouichthys is one of three species of jawless (or agnathan ) fish to be found in the Early Cambrian period.
Noun
(en noun)- Thus should the cranial neural crest in cyclostomes prove to be non-skeletogenous this might be a reflection either of its own primitiveness or of the different evolutionary origins and morphological status of the visceral skeleton in agnathans and gnathostomes.
- The hagfish is an agnathan , a modern representative of the earliest evolved group of vertebrates, the ostracoderms or jawless fishes, which arose prior to the ancient placoderms (3).