Prioniodontida
| Prioniodontida ("Complex conodonts") | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | †Conodonta |
| (unranked): | †Prioniodontida Dzik 1976[1] |
| Orders | |
|
See text | |
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.
Phylogeny
This is a recent cladogram of the Prioniodontida, simplified from Donoghue et al., (2008).[2]
| Prioniodontida |
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Notes
- ↑ Bactrognathidae is actually only one of two families (the other unnamed) belonging to a superfamily that is as yet unnamed.
Bibliography
- ↑ Remarks on the evolution of Ordovician conodonts. J Dzik, Acta Palaeontologica Polonica, 1976, volume 21, no 4 (pdf, retrieved 30 April 2016)
- 1 2 Donoghue, P. C.J; M. A Purnell; R. J Aldridge; S. Zhang (2008). "The interrelationships of 'complex'conodonts (Vertebrata)". Journal of Systematic Palaeontology. 6 (2): 119–153. doi:10.1017/s1477201907002234.
- ↑ Gabbott, S. E.; R. J. Aldridge; J. N. Theron (1995). "A giant conodont with preserved muscle tissue from the Upper Ordovician of South Africa".
- ↑ Briggs, D. E.G; E. N.K Clarkson; R. J Aldridge (1983). "The conodont animal". Lethaia. 16 (1): 1–14. doi:10.1111/j.1502-3931.1983.tb01993.x.
External links
- Prioniodontida at fossilworks.org (retrieved 8 May 2016)
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