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Prioniodontida

Prioniodontida
("Complex conodonts")
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Conodonta
Clade: Euconodonta
Clade: Prioniodontida
Dzik 1976
Orders

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Prioniodontida, also known as the "complex conodonts", is a large clade of conodonts that includes two major evolutionary grades; the Prioniodinina and the Ozarkodinina. It includes many of the more famous conodonts, such as the giant ordovician Promissum (Prioniodinina) from the Soom Shale and the Carboniferous specimens from the Granton Shrimp bed (Ozarkodinina). They are euconodonts, in that their elements are composed of two layers; the crown and the basal body, and are assumed to be a clade.

This is a recent cladogram of the Prioniodontida, simplified from Donoghue et al., (2008).

Paracordylodus

Balognathidae

Prioniodinina

Palmatolepidae

Polygnathidae

Idiognathodontidae

Bactrognathidae


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Wikipedia

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