Iapetonudus
| Iapetonudus Temporal range: Early Ordovician | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | †Conodonta |
| Order: | †Proconodontida |
| Genus: | †Iapetonudus Nicoll at al, 1999[1] |
| Species | |
|
†Iapetonudus ibexensis[2] | |
Iapetonudus is an extinct genus of conodonts.
Like other members of its genus, Iapetognathus fluctivagus had ramiform (branching) array of elements (apparatus). It is believed that the ramiform apparatus in Iapetognathus fluctivagus evolved from the coniform (cone-like) apparatus of Iapetonudus ibexensis.[3]
See also
- Iapetus Ocean, an ocean that existed in the late Neoproterozoic and early Paleozoic eras of the geologic timescale (between 600 and 400 million years ago)
References
- ↑ Iapetonudus (N. gen.) and Iapetognathus Landing, unusual Earliest Ordovician multielement conodont taxa and their utility for biostratigraphy. Robert S. Nicoll, J.F. Miller, G.S. Nowlan, J.E. Repetski, and Raymond L. Ethington, Brigham Young University Geology Studies, 1999, volume 44, pages 27–101
- ↑ Designation of holotypes for new species of Iapetonudus Nicoll, Miller, Nowlan, Repetski and Ethington and Iapetognathus Landing. Journal of Micropalaeontology, 1999, volume 18, page 124, doi:10.1144/jm.18.2.124
- ↑ Roger A. Cooper; Godfrey S. Nowlan; S. Henry Williams (2001). "Global Stratotype Section and Point for base of the Ordovician System" (PDF). Episodes. 24 (1): 19–28.
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