sentences:  In this monograph they argue that both the “early-archosaur” and “crocodylomorph” hypotheses are at least as well supported as the BMT (birds are maniraptoran theropod dinosaurs) hypothesis.Also, the Kishino-Hasegawa tests they performed revealed no statistical difference between the hypothesis that birds were a clade nested within the Maniraptora and the hypothesis that core clades of Maniraptora (oviraptorosaurs, troodontids, and dromaeosaurs) were actually flying and flightless radiations within the clade bracketed by "Archaeopteryx" and modern birds (Aves).James and Pourtless concluded that because Aves might not belong within it, Theropoda as presently constituted might not be monophyletic.