Plioplatecarpinae
| Plioplatecarpinae | ||||||||||||
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Live reconstruction of Plioplatecarpus |
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| Temporal occurrence | ||||||||||||
| Upper Cretaceous ( Cenomanian to Maastrichtian ) | ||||||||||||
| 100.5 to 66 million years | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Plioplatecarpinae | ||||||||||||
| Dollo , 1884 | ||||||||||||
The Plioplatecarpinae are a subfamily of the mosasaurs . They mainly included shapes with a short body (only 29 or fewer vertebrae in front of the pelvic vertebrae). The skulls of most Plioplatecarpinae are highly kinetic and have movable bones in both the upper and lower jaws. The latter does not apply to Prognathodon and Plesiotylosaurus , which have straight, conical teeth and a crushed bite.
The hemal arches are not fused with the caudal spine. The exception here is again Prognathodon . The assignment of Prognathodon and Plesiotylosaurus to the subfamily is controversial. Bell places them in the Mosasaurinae as a close relative of Globidens .
Genera
- Ectenosaurus
- Igdamanosaurus
- Platecarpus
- Plioplatecarpus
- Selmasaurus
- Yaguarasaurus
- Plesiotylosaurus , allocation controversial
- Prognathodon , allocation controversial
source
- Ben Creisler: Mosasauridae Translation and Pronunciation Guide Plioplatecarpinae