Embryo fossil…oldest proof that mammal ancestors laid eggs
“Our ability to identify the fossil egg adds to our understanding of the origin of mammalian reproductive biology and lactation, and the survival strategy of Lystrosaurus”
#Science #Fossils #ReproBio #paleontology
https://theconversation.com/embryo-fossil-found-in-south-africa-is-worlds-oldest-proof-that-mammal-ancestors-laid-eggs-277673
Embryo fossil found in South Africa is world’s oldest proof that mammal ancestors laid eggs
A detailed scan of a fossil therapsid embryo reveals the oldest egg belonging to a mammalian ancestor.
Daniel MacPhee 🔬🧬🧫🇨🇦