The discovery of new cynodont fossils from southern Brazil by a team of palaeontologists has led to a significant breakthrough in understanding the evolution of mammals.
Now, a 225-million-year-old fossilized jaw joint appears to represent the oldest example of a type of joint that has helped ...
Newly discovered fossils, belonging to the mammal-precursor species Brasilodon quadrangularis and Riograndia guaibensis, ...