Morgi pen morthwyl
Gwedd
Morgwn pen morthwyl Amrediad amseryddol: Middle Miocene to Present[1] | |
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Morgwn pen morthwyl sgolop (Sphyrna lewini) | |
Dosbarthiad gwyddonol | |
Teyrnas: | Animalia |
Ffylwm: | Chordata |
Dosbarth: | |
Is-ddosbarth: | |
Urdd: | Carcharhiniformes |
Teulu: | Sphyrnidae T. N. Gill, 1872 |
Genera | |
| |
Grŵp o forgwn yw'r morgwn pen morthwyl.
Cyfeiriadau
[golygu | golygu cod]- ↑ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Chondrichthyes entry)". Bulletins of American Paleontology 364: 560. http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=575&rank=class. Adalwyd 01/09/08.