Newly discovered fossils, belonging to the mammal-precursor species Brasilodon quadrangularis and Riograndia guaibensis, ...

Now, a 225-million-year-old fossilized jaw joint appears to represent the oldest example of a type of joint that has helped ...

These fossils, belonging to the mammal-precursor species Brasilodon quadrangularis and Riograndia guaibensis, offer critical insights into the development of the mammalian jaw and middle ear, ...

Unearthed last year, the remains could reveal new information on the extinct sea reptile, which crushed mollusks and shelled ...