Placodontiformes
Placodontiformes is an extinct clade of sauropterygian marine reptiles that includes placodonts and the non-placodont Palatodonta. It was erected in 2013 with the description of Palatodonta. Placodontiformes is the most basal clade of Sauropterygia and the sister group of Eosauropterygia, which includes all other sauropterygians.[2]
| Placodontiforms | |
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| Skeleton of the placodontian placodontiform Henodus chelyops | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Superorder: | †Sauropterygia |
| Clade: | †Placodontiformes Neenan et al., 2013 |
| Subgroups | |
Phylogeny
Below is a cladogram from Neenan et al. (2013) showing the position of Placodontiformes within Sauropterygia:[2]
| Sauropterygia |
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References
- Wolniewicz, A. S.; Shen, Y.; Li, Q.; Sun, Y.; Qiao, Y.; Chen, Y.; Hu, Y.-W.; Liu, J. (2023). "An armoured marine reptile from the Early Triassic of South China and its phylogenetic and evolutionary implications". eLife. doi:10.7554/eLife.83163. PMID 37551884.
- Neenan, J. M.; Klein, N.; Scheyer, T. M. (2013). "European origin of placodont marine reptiles and the evolution of crushing dentition in Placodontia". Nature Communications. 4: 1621. doi:10.1038/ncomms2633. PMID 23535642.
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