Promissum
| Promissum Temporal range: [1]
| |
|---|---|
| File:Promissum NT small.jpg | |
| Scientific classification Edit this classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Infraphylum: | Agnatha |
| Class: | †Conodonta |
| Family: | †Balognathidae |
| Genus: | †Promissum Kovacs-Endrody, 1986 |
| Species: | †P. pulchrum
|
| Binomial name | |
| †Promissum pulchrum Kovacs-Endrody, 1986
| |
Promissum is an extinct genus of conodonts, primitive chordates, that lived during the Upper Ordovician period.
A conodont, Promissum had a primitive mouth under its eyes with mineralized teeth, which are both typical for conodonts. It had a primitive backbone and probably looked like a small eel or large worm, lacking any kind of fins except for perhaps a small one on the tail. It was relatively large for a conodont, reaching about 40 cm (16 inch) in length.[2]
Well-preserved specimens were discovered in the Soom shale of South Africa in 1994.[3]
Promissum was probably capable of maintaining a cruising speed, but not of bursts of speed.[3]
References
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External links
[edit | edit source]- Promissum at fossilworks. org (retrieved 30 April 2016)
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