Archelosauria
| Archelosaurs Temporal range: Possible Capitanian records.
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Proganochelys quenstedti
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Sauria |
| Clade: | Archelosauria Crawford et al., 2015[1] |
| Subgroups | |
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Archelosauria is a
Classification
Multiple
Archelosauria was named in a 2015 article by Crawford et al. The name is meant to evoke the archosaurs and chelonians (turtles), the two living subgroups of the clade. Crawford et al. defined Archelosauria as the clade formed by the descendants of the
Below is the phylogeny from Crawford et al., showing interrelationships of Testudines at family level down to Durocryptodira. Archelosauria was grouped within Sauria (the clade formed by archosaurs and lepidosaurs), as the sister branch to Lepidosauria, the clade containing lizards, snakes and the tuatara.[1]
| Sauria |
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Analyses based on
| Neodiapsida |
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Wolniewicz et al (2023) also found evidence for an expanded Archelosauria containing the three Mesozoic marine reptile clades of uncertain placement:[10]