Rhaeticosaurus
Rhaeticosaurus was a small, early plesiosaur that swam in the seas of the Late Triassic. It had four flippers shaped like wings and a long neck, and it used its flippers to fly through the water. This marine reptile is one of the oldest plesiosaurs ever found.2
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Rhaeticosaurus is the first plesiosaur skeleton ever found from the Triassic period, showing that plesiosaurs were already around before the Jurassic.2
Its name means 'Rhaetian lizard' because it lived during the Rhaetian age, the last stage of the Triassic.1
Rhaeticosaurus had very short lower arm and leg bones compared to its upper limb bones, with a humerus-to-radius ratio of 3.8 and a femur-to-tibia ratio of 4.3.2
The holotype skeleton was discovered in 2013 by Michael Mertens, a private collector who reported it to authorities.1
Rhaeticosaurus was a basal member of the Pliosauridae, a group of plesiosaurs with large heads and short necks.2
Its teeth had sharp ridges on the enamel, a feature that helped scientists identify it as a plesiosaur.2

Mituna oyo batunaka mingi na ntina na Rhaeticosaurus
Mpo na bayebi ya badino
- Nkombo ya siansi
- Rhaeticosaurus
- Nkombo epesamaki na
- Wintrich et al. 20174
- Lisanga
- Baplezozore
- Libota / klade
- Plesiosauria4
- Klasifikasio
- Plesiosauria > Sauropterygia4
- Mbula ya mabanga
- mbula milio 206 kino 201 (Rhaetian)4
- Milongo ya mabanga
- Exter4
- Bikolo
- Alemani4
- Bafosile oyo ekomami
- 1 na The Paleobiology Database4
- Ntango bamonaki yango
- Rhaeticosaurus was named in 2017 by Wintrich and colleagues based on a partial skeleton found in 2013 in a clay pit in Germany. The fossil was discovered by Michael Mertens and later prepared for study.13
- Naino bazali kowelana
- Scientists are still debating exactly how many neck vertebrae Rhaeticosaurus had, but they estimate at least 37.2
Esika makambo euti
- Rhaeticosaurus (en.wikipedia.org)
- A Triassic plesiosaurian skeleton and bone histology inform on evolution of a unique body plan (pmc.ncbi.nlm.nih.gov)
- PBDB Taxon (paleobiodb.org)
- Rhaeticosaurus in The Paleobiology Database (CC BY 4.0): mbula, bisika, milongo ya mabanga, klasifikasio.
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