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Family Liolaemidae (iguana relatives, such as swifts) Family Opluridae (Madagascan iguanas) Family Phrynosomatidae (spiny lizards, horn lizards, tree lizards, and more) Family Polychrotidae (anoles) Family Tropiduridae (neotropical ground lizards) Family Gymnophthalmidae (spectacled lizards) Family Lacertidae (wall lizards) Family Teiidae (tegus)
Clade: Eugnathostomata: Clade: Teleostomi: Superclass: Tetrapoda ... of the tetrapod family tree. As is the case throughout evolutionary biology today, there is ...
Tetrapodomorpha (also known as Choanata [3]) is a clade of vertebrates consisting of tetrapods (four-limbed vertebrates) and their closest sarcopterygian relatives that are more closely related to living tetrapods than to living lungfish.
Eotetrapodiformes is a clade of tetrapodomorphs including the four-limbed vertebrates ("tetrapods" in the traditional sense) and their closest finned relatives, two groups of stem tetrapods called tristichopterids and elpistostegalids.
Contrary to the old usage of this term, the Stegocephali refers to a clade in this scheme. This concept of the clade Stegocephali was chosen to substitute for the name Tetrapoda by those who sought to restrict Tetrapoda to the crown group. [8] As such, it encompasses all presently living land vertebrates as well as their early amphibious ancestors.
Articles relating to the Tetrapodomorpha, a clade of vertebrates consisting of tetrapods (four-limbed vertebrates) and their closest sarcopterygian relatives that are more closely related to living tetrapods than to living lungfish
Synapsida [a] is a diverse group of tetrapod vertebrates that includes all mammals and their extinct relatives. It is one of the two major clades of the group Amniota, the other being the more diverse group Sauropsida (which includes all extant reptiles and birds).
The crown age of a clade refers to the age of the most recent common ancestor of all of the species in the clade. The stem age of a clade refers to the time that the ancestral lineage of the clade diverged from its sister clade. A clade's stem age is either the same as or older than its crown age. [15] Ages of clades cannot be directly observed.