Anomalously high variation in postnatal development is ancestral for dinosaurs but lost in birds
Anomalously high variation in postnatal development is ancestral for dinosaurs but lost in birds
C. Griffin,S. Nesbitt
2016 · DOI: 10.1073/pnas.1613813113
Proceedings of the National Academy of Sciences of the United States of America · 74 Citations
TLDR
It is shown that deep within Dinosauria, among the earliest-diverging dinosaurs, anomalously high intraspecific variation is widespread but then is lost in more derived theropods, which is ancestral for dinosaurs and their closest relatives.