Gnathostomata adalah kelompok vertebrata yang memiliki rahang. Terbagi menjadi dua cabang
Cabang pertama
Berisikan Dua dahan
Dahan pertama
Berisikan Teleostomi
Dahan kedua
Berisikan Chondrichthyes
Cabang kedua
Berisikan Placodermi
Referensi :
Diekwisch, TGH, BJ Berman, X Anderton, B Gurinsky, AJ Ortega, PG Satchall, M Williams, C Arumugham, X-G Luan, JE McIntosh, A Yamane, DS Carlson, J-Y Sire & CF Shuler (2002), Membranes, minerals, and proteins of developing vertebrate enamel. Microscopy Res. & Tech. 59: 373-395.
Janvier, P & A Blieck (1993), The Silurian-Devonian Agnathan Biostratigraphy of the Old Red Continent in JA Long (ed.), Palaeozoic Vertebrate Biostratigraphy and Biogeography. Johns Hopkins Univ. Press, pp.70-73.
Mazan, S, D Jaillard, B Baratte & P Janvier (2000), Otx1 gene-controlled morphogenesis of the horizontal semicircular canal and the origin of the gnathostome characteristics. Evol. & Devel. 2: 186-193.
Ritchie, A (1967), Ateleaspis tessellata Traquair, a non-cornuate cephalaspid from the Upper Silurian of Scotland. Zool. J. Linnean Soc. 47: 69-81. [This issue, no. 311, was published as a separate festschrift volume for Dr. Errol I. White and is sometimes cited — and filed by librarians — as "Patterson, C & PH Greenwood (eds.) (1967), Fossil Vertebrates. Academic Press"]
Van der Brugghen, W & P Janvier (1993), Denticles in thelodonts. Nature 364: 107
Wilson, MVH & MW Caldwell (1998), The Furcacaudiformes: a new order of jawless vertebrates with thelodont scales, based on articulated Silurian and Devonian fossils from Northern Canada. J. Vert. Paleontol. 18: 10-29
Sumber gambar : http://www.palaeos.com/Vertebrates/Units/050Thelodonti/050.800.html
