Non-avian dinosaur with streamlined body shows potential adaptations for swimming – Communications Biology
Dinosauria Owen, 1842 Theropod Marsh, 1881 Dromaeosauridae Matthew and Brown, 1922 Halszkaraptorinae Cau et al., 2017 Revised diagnosis Small dromeosaurids that possess dorsoventrally flattened premaxillae, premaxillary bodies perforated by numerous neurovascular foramina, enlarged and crowded premaxillary teeth that used delayed replacement patterns, reduced anterior maxillary teeth, dorsolateral placement of retracted external nostrils, very elongated cervical …