In particular, Susan and Marc were shedding light on the evolutionary history of the lower temporal bar, which is a bony strut that runs along the lower border of the skull between the orbit and ear ...

Of these, only the crocodile-alligator and bird groups survived to modern times. The last group to split off was the lizards and snakes within the lepidosaurs. The tympanic middle ear originated ...

Lepidosaurs Slide 7 B. Lepidosaur - Characteristics "All reptiles have copulatory organs" 6. Advanced circulatory, respiratory and skeletal systems "7." C. Order Sphenodonta – tuataras D. Order ...