Hesperornithes is an extinct and highly specialized group of aquatic avialans closely related to the ancestors of modern birds. They inhabited both marine...
13 KB (1,279 words) - 04:51, 19 March 2024
definition: "extant birds and all other taxa, such as Ichthyornis and Hesperornithes, that are closer to extant birds than is Archaeopteryx". Later he and...
7 KB (519 words) - 11:48, 26 May 2024
exists for the ecology of B. advenus than for any other member of the Hesperornithes, with the possible exception of Hesperornis regalis, but still much...
9 KB (1,045 words) - 11:28, 29 April 2023
2001: Potamornis skutchi. This was almost certainly a member of the Hesperornithes, the hefty and toothed flightless diving birds of the Mesozoic seas...
2 KB (229 words) - 05:53, 21 March 2024
penguins, ratites, and terror birds also filled niches left by the hesperornithes and other extinct dinosaurs. Pronounced cooling in the Oligocene resulted...
23 KB (2,372 words) - 14:31, 14 June 2024
archaic clades of birds, such as Enantiornithes, Ichthyornithes, and Hesperornithes, persisted to the latest Maastrichtian but became extinct during the...
16 KB (1,396 words) - 17:42, 24 June 2024
bizarre as Yungavolucris and Avisaurus. Though mostly small, marine Hesperornithes became relatively large and flightless, adapted to life in the open...
18 KB (1,693 words) - 11:04, 24 June 2024
mid-Maastrichtian age, about 67 million years ago. It was a member of the Hesperornithes, flightless toothed seabirds of the Cretaceous. Among these, it belonged...
4 KB (309 words) - 19:26, 31 October 2023
Ornithomimosauria, Oviraptorosauria, Deinonychosauria, Enantiornithes, and Hesperornithes. Only the Neornithes, otherwise known as modern birds, survived, and...
25 KB (2,511 words) - 03:06, 2 July 2024
of enantiornithe and ornithurine forms. Though mostly small, marine hesperornithes became relatively large and flightless, adapted to life in the open...
41 KB (4,326 words) - 11:45, 3 July 2024
like Spinosaurus have been argued to have had a semiaquatic lifestyle. Hesperornithes and penguins also adapted to this lifestyle. The metabolism of archosaurs...
59 KB (5,566 words) - 04:13, 24 June 2024
Songlingornithiformes Hongshanornithidae Gansuiformes Ichthyornithiformes Hesperornithes Lithornithiformes Dinornithiformes Aepyornithiformes Gastornithiformes...
33 KB (3,586 words) - 23:08, 17 June 2024
flying birds) †Yanornithiformes (toothed Cretaceous Chinese birds) †Hesperornithes (specialized aquatic diving birds) Aves (modern, beaked birds and their...
71 KB (7,586 words) - 23:00, 2 July 2024
1093/molbev/msaa191. ISSN 0737-4038. PMC 7783168. PMID 32781465. Hope (2002) and see Hesperornithes These are the fossils described in the same paper as Pelecanus odessanus...
57 KB (5,700 words) - 02:30, 21 June 2024
Songlingornithiformes Hongshanornithidae Gansuiformes Ichthyornithiformes Hesperornithes Lithornithiformes Dinornithiformes Aepyornithiformes Gastornithiformes...
80 KB (9,196 words) - 08:24, 19 June 2024
Songlingornithiformes Hongshanornithidae Gansuiformes Ichthyornithiformes Hesperornithes Lithornithiformes Dinornithiformes Aepyornithiformes Gastornithiformes...
51 KB (5,802 words) - 07:53, 31 May 2024
Enantiornithes became extinct at the Cretaceous–Paleogene boundary, along with Hesperornithes and all other non-avian dinosaurs. The first Enantiornithes to be discovered...
107 KB (8,728 words) - 09:01, 29 June 2024
Songlingornithiformes Hongshanornithidae Gansuiformes Ichthyornithiformes Hesperornithes Lithornithiformes Dinornithiformes Aepyornithiformes Gastornithiformes...
67 KB (7,867 words) - 08:06, 21 June 2024
The largest prehistoric animals include both vertebrate and invertebrate species. Many of them are described below, along with their typical range of size...
395 KB (40,070 words) - 15:27, 5 July 2024
Songlingornithiformes Hongshanornithidae Gansuiformes Ichthyornithiformes Hesperornithes Lithornithiformes Dinornithiformes Aepyornithiformes Gastornithiformes...
38 KB (4,732 words) - 19:01, 5 July 2024
of the shallow Turgai Sea.[citation needed] It was a member of the Hesperornithes, flightless toothed seabirds of the Cretaceous. Its exact relationships...
3 KB (190 words) - 23:57, 7 July 2022
Earliest known monotremes. Eomaia, similar to placental mammals. First hesperornithes. 110 Ma – 90 Ma Late Cretaceous: Cenomanian, Turonian, Coniacian, and...
237 KB (6,444 words) - 14:47, 25 June 2024
Songlingornithiformes Hongshanornithidae Gansuiformes Ichthyornithiformes Hesperornithes Lithornithiformes Dinornithiformes Aepyornithiformes Gastornithiformes...
15 KB (1,705 words) - 12:58, 1 July 2024
Songlingornithiformes Hongshanornithidae Gansuiformes Ichthyornithiformes Hesperornithes Lithornithiformes Dinornithiformes Aepyornithiformes Gastornithiformes...
17 KB (1,877 words) - 02:38, 17 January 2024
Enantiornithes (early birds with an alternative shoulder joint) Subclass Hesperornithes (toothed aquatic flightless birds) Subclass Ichthyornithes (toothed...
44 KB (3,422 words) - 03:06, 24 June 2024
†Kookne †Limenavis †Tingmiatornis †Ichthyornithes Ichthyornis Janavis †Hesperornithes †Vegaviidae Australornis? Maaqwi? Neogaeornis? Polarornis Vegavis †Cimolopterygidae...
39 KB (4,406 words) - 07:49, 1 July 2024
Songlingornithiformes Hongshanornithidae Gansuiformes Ichthyornithiformes Hesperornithes Lithornithiformes Dinornithiformes Aepyornithiformes Gastornithiformes...
109 KB (13,663 words) - 21:12, 5 July 2024
webbed feet for propulsion. Some diving birds, for example the extinct Hesperornithes of the Cretaceous Period, propelled themselves with their feet. They...
8 KB (863 words) - 19:59, 4 June 2024
a large predatory fish, appears in the fossil record. 110 Ma First hesperornithes, toothed diving birds. Earliest limopsid, verticordiid, and thyasirid...
85 KB (4,725 words) - 11:46, 2 July 2024