Article: On growth stages in branchiosaurs
D. M. S. Watson
Lower Permian material from Niederhasslich, Friedrichroda, and Odernheim in the author's collection and in the British Museum (Natural History) is reviewed and described. A new species, Branchiosaurus brachyrhynchus sp. nov., is erected for specimens from Friedrichroda; B. flagrifer Whittard is redefined. New combinations are Branchiosaurus (Micromelerpetori) credneri (Bulman and Whittard) and B. (Leptorophus) levis (Bulman).