| Gnathodontidae | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | † Conodonta |
| Order: | † Ozarkodinida |
| Family: | † Gnathodontidae Sweet 1988 [1] |
| Genera | |
| |
Gnathodontidae is an extinct conodont family in the order Ozarkodinida. It consists of the extinct genus Icriodus .
Conodonts are an extinct group of agnathan (jawless) Fish resembling eels, classified in the class Conodonta. For many years, they were known only from their tooth-like oral elements found in isolation and now called conodont elements. Knowledge about soft tissues remains limited. They existed in the worlds oceans for over 300 million years, from the Cambrian to the beginning of the Jurassic. Conodont elements are widely used as index fossils, fossils used to define and identify geological periods. The animals are also called Conodontophora to avoid ambiguity.
Staurognathus is an extinct genus of conodonts in the family Bactrognathidae from the Middle Dinantian. It is a genus of multielement conodonts.
Ozarkodinida is an extinct conodont order. It is part of the clade Prioniodontida, also known as the "complex conodonts".
Palmatolepidae is an extinct conodont family. It is part of the clade Prioniodontida, also known as the "complex conodonts".
Spathognathodus is an extinct conodont genus in the family Spathognathodontidae. It is a non-Platform conodont, from the Pennsylvanian (Carboniferous).
Chirognathus is an extinct genus of conodonts in the family Chirognathidae.
Balognathidae is an extinct conodont family.
Notiodella is an extinct conodont genus in the family Balognathidae. It has been described from a 17-element apparatus from the Soom Shale Lagerstätte in South Africa.
Paraconodontida is an extinct order of conodonts. It contains two superfamilies, Amphigeisinoidea and Furnishinoidea.
Paracordylodontidae is an extinct family of conodonts in the clade Prioniodontida, also known as the "complex conodonts".
Idiognathodus is an extinct conodont genus in the family Idiognathodontidae.
Gnathodus is an extinct conodont genus in the family Idiognathodontidae.
Alternognathus is an extinct conodont genus in the family Elictognathidae. An extensive study on its population dynamics and lifespan has recently been published.
Distomodus is an extinct genus of conodonts.
Gondolella is an extinct genus of conodonts in the family Gondolellidae.
Epigondolella is an extinct genus of conodonts in the family Gondolellidae.
Histiodella is an extinct genus of conodonts.
Cryptotaxidae is an extinct family of conodonts in the order Ozarkodinida. It includes the extinct genus Cryptotaxis.
Protohertzina is a genus of conodonts or, possibly, Chaetognaths, found at the beginning of the Cambrian explosion.
Panderodus Is an extinct genus of jawless fish belonging to the order Conodonta. This genus had a long temporal range, surviving from the middle Ordovician to late Devonian. Recently, extremely rare body fossils of Panderodus from the Waukesha Biota were described, and it revealed that Panderodus had a more thick body compared to the more slender bodies of more advanced conodonts. It also revealed that this conodont was a macrophagous predator, meaning it went after large prey.
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