Prioniodontida
Extinct clade of conodonts
From Wikipedia, the free encyclopedia
Prioniodontida, also known as the "complex conodonts", is a large clade of conodonts that includes two major evolutionary grades; the Prioniodinina and the Ozarkodinina.[2] It includes many of the more famous conodonts, such as the giant ordovician Promissum (Prioniodinina) from the Soom Shale[3] and the Carboniferous specimens from the Granton Shrimp bed (Ozarkodinina).[4] 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[citation needed].
| Prioniodontida ("Complex conodonts") Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Infraphylum: | Agnatha |
| Class: | †Conodonta |
| Clade: | †Euconodonta |
| Clade: | †Prioniodontida Dzik, 1976[1] |
| Orders | |
|
See text | |
Phylogeny
This is a recent cladogram of the Prioniodontida, simplified from Donoghue et al., (2008).[2]
Notes
- Bactrognathidae is actually only one of two families (the other unnamed) belonging to a superfamily that is as yet unnamed.
