Osteichthyans (bony fishes and tetrapods) have the maxillary, premaxillary, and dentary bones, all with facial laminae, whereas placoderms (jawed stem gnathostomes) have supposedly non-homologous ...
Aug. 16 (UPI) --Australian scientists have discovered a 400-million-year-old fish fossil featuring a human-like jaw structure. Paleontologists believe the ancient fish species' jaw bones represent an ...
A 423 million year old jawed fish fossil has been found in Xiushui county, Southwest China's Chongqing Municipality, making the city the second place in the world where a complete new species of jawed ...
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