| Procolophonomorphs | |
|---|---|
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| Kapes bentoni (Procolophonidae) | |
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| Scutosaurus (Pareiasauria) | |
Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Subclass: | †Parareptilia |
| Order: | †Procolophonomorpha Romer, 1964 |
| Subgroups | |
Procolophonomorpha is anorder containing mostparareptiles. Many papers have applied various definitions to the name, though most of these definitions have since been considered synonymous with modern parareptileclades such asAnkyramorpha andProcolophonia. The current definition of Procolophonomorpha, as defined by Modesto, Scott, & Reisz (2009), is that of a stem-based group containingProcolophon and all taxa more closely related to it thanMilleretta. It constitutes a diverse assemblage that includes several lizard-like forms, and more diverse types such as thepareiasaurs. Lee 1995, 1996, 1997 argues that turtles evolved from pareiasaurs. Still, this view is no longer considered likely. Rieppel and deBraga 1996 and deBraga and Rieppel, 1997 argue that turtles evolved fromsauropterygians, and there is both molecular and fossil (Pappochelys) evidence for the origin of turtles amongdiapsid reptiles.
The followingcladogram is simplified after the phylogenetic analysis of MacDougall and Reisz (2014) and shows the placement of Procolophonomorpha withinParareptilia and its interrelationships. Relationships within bolded terminal clades are not shown.[1]
| Parareptilia |
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