With its uniquely twisted jaw and sideways-facing teeth, the new species was a relic of an earlier and more experimental time in the evolution of life on Earth. Fossils discovered in Brazil show that ...

Whole skeleton of Dipterus, an extinct lungfish from the middle Devonian period. Specimen (UMMP 16140) from the University of Michigan Museum of Paleontology. ANN ARBOR—If you're reading this sentence ...

Chinese paleontologists have discovered the world's oldest complete bony fish fossils, dating back 436 million years ...

During the course of evolution, the mammalian cranio-mandibular secondary joint—formed by the dentary condyle and the squamosal glenoid fossa, which replaced the reptilian articular–quadrate ...

Even with only jaws, Tanyka amnicola adds a new character to an ancient ecosystem that scientists are still trying to sketch ...