Ankylopods | |
---|---|
Proganochelys quenstedti | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Reptilia |
Clade: | Sauria |
Clade: |
Ankylopoda Lyson et al., 2012 |
Extant subclades | |
Ankylopoda was a proposed clade that hypothetically contains turtles and lepidosaurs (tuatara, lizards and snakes) and their fossil relatives. This clade was historically supported based on microRNA analysis [1] as well as some cladistic analyses. [2] However, it was strongly contradicted by molecular evidence which supports Archelosauria (the grouping of turtles and archosaurs), [3] and other recent cladistic analyses have supported Archelosauria over Ankylopoda. [4]
The cladogram below follows the most likely result found by another analysis of turtle relationships, this one using only fossil evidence, published by Rainer Schoch and Hans-Dieter Sues in 2015. This study found Eunotosaurus to be an actual early stem-turtle, though other versions of the analysis found weak support for it as a parareptile. [5]
Ankylopods | |
---|---|
Proganochelys quenstedti | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Reptilia |
Clade: | Sauria |
Clade: |
Ankylopoda Lyson et al., 2012 |
Extant subclades | |
Ankylopoda was a proposed clade that hypothetically contains turtles and lepidosaurs (tuatara, lizards and snakes) and their fossil relatives. This clade was historically supported based on microRNA analysis [1] as well as some cladistic analyses. [2] However, it was strongly contradicted by molecular evidence which supports Archelosauria (the grouping of turtles and archosaurs), [3] and other recent cladistic analyses have supported Archelosauria over Ankylopoda. [4]
The cladogram below follows the most likely result found by another analysis of turtle relationships, this one using only fossil evidence, published by Rainer Schoch and Hans-Dieter Sues in 2015. This study found Eunotosaurus to be an actual early stem-turtle, though other versions of the analysis found weak support for it as a parareptile. [5]