Data from: A single origin of extreme matrotrophy in African mabuyine skinks

Most mammals and approximately 20% of squamates (lizards and snakes) are
viviparous, whereas all crocodilians, birds and turtles are oviparous.
Viviparity evolved greater than 100 times in squamates, including multiple
times in Mabuyinae (Reptilia: Scincidae), making this group ideal for
studying the evolution of nutritional patterns associated with viviparity.
Previous studies suggest that extreme matrotrophy, the support of
virtually all of embryonic development by maternal nutrients, evolved as
many as three times in Mabuyinae: in Neotropical Mabuyinae (63 species),
Eumecia (2 species; Africa) and Trachylepis ivensii (Africa). However, no
explicit phylogenetic hypotheses exist for understanding the evolution of
extreme matrotrophy. Using multilocus DNA data, we inferred a species tree
for Mabuyinae that implies that T. ivensii (here assigned to the
resurrected genus Lubuya) is sister to Eumecia, suggesting that extreme
matrotrophy evolved only once in African mabuyine skinks.