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Fig. 4 | BMC Ecology and Evolution

Fig. 4

From: Rapid neck elongation in Sauropterygia (Reptilia: Diapsida) revealed by a new basal pachypleurosaur from the Lower Triassic of China

Fig. 4

Phylogenetic position of the new taxon and phenograms of relative neck length in selected Triassic eosauropterygians. (A) Strict consensus of four most parsimonious trees (TL = 534, CI = 0.352, RI = 0.613). Bootstrap values ≥ 50% are labelled. Taxa are marked by different colours. (B) Phenograms of neck-trunk length ratio (Chusaurus as sister group to the clade including Panzhousaurus). (C) Phenograms of neck-trunk length ratio (Chusaurus as sister group to the clade including Keichousaurus). Clades: a. Sauropterygia; b. Placodontia; (c) Eosauropterygia; (d) Pachypleurosauridae; (e) Nothosauridae; (f) Pistosauroidea

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BMC Ecology and Evolution

ISSN: 2730-7182

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