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]
Promissum was probably capable of maintaining a cruising speed, but not of bursts of speed.[3]
Referencesedit
^Gabbott, S.E.; Aldridge, R.J.; Theron, J.N. (1998). "Chitinozoan chains and cocoons from the Upper Ordovician Soom Shale lagerstatte, South Africa; implications for affinity". Journal of the Geological Society. 155 (3): 447–452. Bibcode:1998JGSoc.155..447G. doi:10.1144/gsjgs.155.3.0447. S2CID 129236534.
^Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 23. ISBN1-84028-152-9.
^ abGabbott, S.E.; R. J. Aldridge; J. N. Theron (1995). "A giant conodont with preserved muscle tissue from the Upper Ordovician of South Africa". Nature. 374 (6525): 800–803. Bibcode:1995Natur.374..800G. doi:10.1038/374800a0. S2CID 4342260.
External linksedit
Promissum at fossilworks. org (retrieved 30 April 2016)
promissum, extinct, genus, conodonts, primitive, chordates, that, lived, during, upper, ordovician, period, temporal, range, upper, ordovician, preꞒ, scientific, classification, domain, eukaryota, kingdom, animalia, phylum, chordata, class, conodonta, family, . Promissum is an extinct genus of conodonts primitive chordates that lived during the Upper Ordovician period PromissumTemporal range Upper Ordovician PreꞒ Ꞓ O S D C P T J K Pg N 1 Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Class Conodonta Family Balognathidae Genus PromissumKovacs Endrody 1986 Species P pulchrum Binomial name Promissum pulchrumKovacs Endrody 1986 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 edit Gabbott S E Aldridge R J Theron J N 1998 Chitinozoan chains and cocoons from the Upper Ordovician Soom Shale lagerstatte South Africa implications for affinity Journal of the Geological Society 155 3 447 452 Bibcode 1998JGSoc 155 447G doi 10 1144 gsjgs 155 3 0447 S2CID 129236534 Palmer D ed 1999 The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals London Marshall Editions p 23 ISBN 1 84028 152 9 a b Gabbott S E R J Aldridge J N Theron 1995 A giant conodont with preserved muscle tissue from the Upper Ordovician of South Africa Nature 374 6525 800 803 Bibcode 1995Natur 374 800G doi 10 1038 374800a0 S2CID 4342260 External links editPromissum at fossilworks org retrieved 30 April 2016 nbsp Paleontology portal nbsp This article related to an Ordovician animal is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Promissum amp oldid 1060835672, wikipedia, wiki, book, books, library,
