Definition of Hesperornithines. Meaning of Hesperornithines. Synonyms of Hesperornithines

- Hesperornithes is an extinct and highly specialized group of aquatic avialans closely related to the ancestors of modern birds. They inhabited both marine...
- and their very close relatives such as the ichthyornithines and the hesperornithines. This clade is defined in the PhyloCode by Juan Benito and colleagues...
- Mesozoic dinosaur groups such as the arboreal enantiornithines, aquatic hesperornithines, and even the larger terrestrial theropods (in the form of Gastornis...
- is a genus of hesperornithine which lived during the late Albian to the early Cenomanian, making them the oldest known hesperornithines. Fossils have...
- rossicus was the largest species of Hesperornis and among the largest hesperornithines, slightly smaller than the large Canadian genus Canadaga. Aside from...
- inadequately known, it appears to have been one of the more basal hesperornithines. Mortimer (2004) Mortimer, Michael (2004). "The Theropod Database:...
- member, the great auk (Pinguinus impennis). The largest known of the hesperornithines was Canadaga arctica at 2.2 m (7 ft 3 in) long. One of the heaviest...
- understood, as specimens of juveniles are rare, and many were mistaken for hesperornithine birds when discovered 100 years ago. However, the discovery of several...
- Stratigraphic position Material Notes Images cf. Baptornis Indeterminate A hesperornithine bird cf. Cimolopteryx Indeterminate Partial coracoid A possible charadriiform...
- anymore. The presumed relative Parascaniornis is now known to be a hesperornithine of the genus Baptornis. The Hesperornithes which became extinct by...