Tesserae of this type, formally circular tesserae (Halstead Tarlo 1967b; Karatajute-Talimaa 1998), are a result of multifunctional adaptation through
paedomorphism, because the reduction in the count of tubercles in the crown provides the lightening and improvement of locomotion while preserving the protective function.
Snake venomics and antivenomics of Bothrops atrox venoms from Colombia and the Amazon regions of Brazil, Peru and Ecuador suggest the occurrence of geographic variation of venom phenotype by a trend towards
paedomorphism. J.
This conclusion was based on the observation that incidences of
paedomorphism cause the comparison of external and osteologicai features of salamanders to be difficult, as confirmed by Wiens et al.
Some of the character states in Notocheirus (including lack of first dorsal, mesethmoid, first epibranchial and epural) could be interpreted as
paedomorphism (eg.