Prioniodinida is an extinct order of

conodont Conodonts (Greek ''kōnos'', "cone", + ''odont'', "tooth") are an extinct group of agnathan (jawless) vertebrates resembling eels, classified in the class Conodonta. For many years, they were known only from their tooth-like oral elements, which ...

s, a jawless

vertebrate Vertebrates () comprise all animal taxa within the subphylum Vertebrata () ( chordates with backbones), including all mammals, birds, reptiles, amphibians, and fish. Vertebrates represent the overwhelming majority of the phylum Chordata, ...

Families

Families are: * †

Bactrognathidae Bactrognathidae is an extinct family of conodonts in the order Prioniodinida. Genera are '' Bactrognathus'', '' Doliognathus'', and '' Staurognathus''. References External links Bactrognathidaeat fossilworks Fossilworks is a portal whi ...

* †

Chirognathidae Chirognathidae is an extinct family of conodonts.Stratigraphical distribution of the Ordovician conodont Erraticodon Dzik in Argentina. S. Heredia, J. Carlorosi, A. Mestre and T. Soria, Journal of South American Earth Sciences, Volume 45, August ...

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Ellisoniidae Ellisoniidae is an extinct family of conodonts, a kind of primitive chordate. Genera Genera are: * †'' Ellisonia'' * †'' Foliella'' * †'' Hadrodontina'' * †'' Parapachycladina'' * †''Parafurnishius'' * †'' Stepanovites'' References ...

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Gondolellidae Gondolellidae is an extinct family of conodonts in the order Ozarkodinida. There are three subfamilies: Mullerinae, Neogondolellinae and Novispathodinae. References External links * * Ozarkodinida families {{conodont-st ...

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Prioniodinidae Prioniodinidae is an extinct family of conodonts in the order Prioniodinida. Genera Genera are: * †'' Bryantodus'' * †'' Camptognathus'' * †''Chirodella ''Chirodella'' is an extinct genus of conodont Conodonts (Greek ''kōnos'', "co ...

References

* Sweet, W. C; P. C.J Donoghue (2001). "Conodonts: past, present, future". Journal of Paleontology 75 (6): 1174.

External links

*
Prioniodinida at biolib.cz
(retrieved 22 April 2016)
Prioniodinida
at

fossilworks Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals ...

.org (retrieved 22 April 2016) Prehistoric jawless fish orders {{Conodont-stub