Non-avian dinosaur eggs took a long time to hatch — between 3 and 6 months, according to new research on the teeth of fossilized dinosaur embryos.
“Some of the greatest riddles about dinosaurs pertain to their embryology — virtually nothing is known,” said Prof. Gregory Erickson, a researcher at Florida State University and lead author on the study, published in the Proceedings of the National Academy of Sciences.
“Did their eggs incubate slowly like their reptilian cousins — crocodilians and lizards? Or rapidly like living dinosaurs — the birds?”
“We know very little about dinosaur embryology, yet it relates to so many aspects of development, life history, and evolution,” said Dr. Mark Norell, a…