Baptornis advenus is a foot-propelled diving bird from the Late Cretaceous of Kansas. It was slightly ... toe-rotation. In this and many other respects, Baptornis was a less specialized diving bird than the ... examination of almost the entire skeleton shows that Baptornis is more closely related to Hesperornis than to ... the earliest record of the Podicipediformes. We maintain Baptornis in a family Baptornithidae separate from Hesperornithidae. Both Hesperornis and Baptornis are in many respects very primitive birds, which ...
Tópico(s): Ichthyology and Marine Biology
1976 - Smithsonian Institution Scholarly Press | Smithsonian contributions to paleobiology
... dinosaurs (Martin and Tate, 1976).However the immature Baptornis material shows that the major features of the ... the skeleton may be interpreted as evidence that Baptornis nested in the vicinity of the find.Over one-third of the known specimens of Baptornis advenus have been from immature birds while Hesperornis, ... far out to sea as did those of Baptornis, or that Hesperornis nested in a different region. ...
Tópico(s): Ecology and biodiversity studies
1977 - Oxford University Press | Ornithology
... Podicipedidae), and the Cretaceous diving birds, Hesperornis and Baptornis, supports the hypothesis that they form a monophyletic ... be delineated: (1) loons + grebes, and (2) Hesperornis + Baptornis. The Early Cretaceous Enaliornis and the Late Cretaceous ...
Tópico(s): Morphological variations and asymmetry
1982 - Oxford University Press | Systematic Biology
Tim T. Tokaryk, C. R. Harington,
... remains, is referred to the loon-like hesperornithiform Baptornis , and is the first recorded occurrence of this ...
Tópico(s): Ichthyology and Marine Biology
1992 - Cambridge University Press | Journal of Paleontology
... aquatic birds known to date, Hesperornis sp. and Baptornis sp. The holotype (a dorsal vertebra) of Parascaniornis ... found that separate the type from dorsals of Baptornis advenus. The distribution and palaeobiology of hesperornithiforms are ...
Tópico(s): Evolution and Paleontology Studies
2005 - Wiley | Palaeontology
Tópico(s): Avian ecology and behavior
1903 - Smithsonian Institution | Proceedings of the United States National Museum
Tópico(s): Plant and Fungal Species Descriptions
1977 - Oxford University Press | Ornithology
... describe the skeleton of the Cretaceous diving bird Baptornis advenus and conclude that the Baptornithidae belong in ...
Tópico(s): Evolution and Paleontology Studies
1976 - Smithsonian Institution Scholarly Press | Smithsonian contributions to paleobiology
Tópico(s): Comparative Animal Anatomy Studies
1976 - Smithsonian Institution Scholarly Press | Smithsonian contributions to paleobiology
... genera of Mesozoic birds are examined: Archaeopteryx, Enaliornis, Baptornis, Parahesperornis, Hesperornis, and Ichthyornis. Despite the 'archaic' aspect ...
Tópico(s): Avian ecology and behavior
1990 - Oxford University Press | Zoological Journal of the Linnean Society
Alyssa Bell, Michael J. Everhart,
... species of Hesperornis as well as those of Baptornis advenus are known from the Smoky Hill Chalk ...
Tópico(s): Evolution and Paleontology Studies
2009 - Kansas Academy of Science | Transactions of the Kansas Academy of Science
Laura E. Wilson, Karen Chin, Stephen L. Cumbaa, Gareth J. Dyke,
... at the highest latitudes, while the smallest forms (Baptornis advenus and Parahesperornis alexi) are found at the ...
Tópico(s): Paleontology and Stratigraphy of Fossils
2011 - Taylor & Francis | Journal of Systematic Palaeontology
... it was more specialized than small hesperornithiforms like Baptornis advenus but not as highly derived as the ...
Tópico(s): Evolution and Paleontology Studies
2015 - Public Library of Science | PLoS ONE
Tim T. Tokaryk, Stephen L. Cumbaa, John E. Storer,
... ichthyornithid Ichthyornis (Ichthyornithiformes). Pasquiaornis is more primitive than Baptornis, and its humérus and femur show resemblances to ...
Tópico(s): Evolution and Paleontology Studies
1997 - Taylor & Francis | Journal of Vertebrate Paleontology
David A. Eberth, Donald B. Brinkman,
... typical of marine settings (ratfish, elasmosaurs, ?Lophochelys, and ?Baptornis); and (5) although terrestrial vertebrates are rare, ceratopsians ...
Tópico(s): Paleontology and Stratigraphy of Fossils
1997 - Society for Sedimentary Geology | Palaios
Tomonori Tanaka, Yoshitsugu Kobayashi, Kenichi Kurihara, Anthony R. Fiorillo, Manabu Kano,
... is assigned as the most basal taxon and Baptornis is positioned as more derived than Brodavis. Chupkaornis ...
Tópico(s): Evolution and Paleontology Studies
2017 - Taylor & Francis | Journal of Systematic Palaeontology