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
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
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
penguins, ratites, and terror birds also filled niches left by the hesperornithes and other extinct dinosaurs. Pronounced cooling in the Oligocene resulted...
27 KB (2,884 words) - 14:01, 18 July 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
Ornithomimosauria, Oviraptorosauria, Deinonychosauria, Enantiornithes, and Hesperornithes. Only the Neornithes, otherwise known as modern birds, survived, and...
25 KB (2,511 words) - 05:59, 23 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
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
flying birds) †Yanornithiformes (toothed Cretaceous Chinese birds) †Hesperornithes (specialized aquatic diving birds) Aves (modern, beaked birds and their...
71 KB (7,615 words) - 21:30, 27 July 2024
Songlingornithiformes Hongshanornithidae Gansuiformes Ichthyornithiformes Hesperornithes Lithornithiformes Dinornithiformes Aepyornithiformes Gastornithiformes...
80 KB (9,212 words) - 13:27, 11 July 2024
Songlingornithiformes Hongshanornithidae Gansuiformes Ichthyornithiformes Hesperornithes Lithornithiformes Dinornithiformes Aepyornithiformes Gastornithiformes...
33 KB (3,586 words) - 23:08, 17 June 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 (5,703 words) - 10:01, 10 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
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) - 21:39, 9 July 2024
Songlingornithiformes Hongshanornithidae Gansuiformes Ichthyornithiformes Hesperornithes Lithornithiformes Dinornithiformes Aepyornithiformes Gastornithiformes...
288 KB (31,031 words) - 02:43, 25 July 2024
Enantiornithes (early birds with an alternative shoulder joint) Subclass Hesperornithes (toothed aquatic flightless birds) Subclass Ichthyornithes (toothed...
48 KB (3,794 words) - 03:11, 20 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
former Shigatze Ocean.[citation needed] Judinornis was a member of the Hesperornithes, flightless toothed seabirds of the Cretaceous. Though its relationships...
2 KB (170 words) - 18:53, 22 December 2023
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 (40,091 words) - 16:47, 19 July 2024
Songlingornithiformes Hongshanornithidae Gansuiformes Ichthyornithiformes Hesperornithes Lithornithiformes Dinornithiformes Aepyornithiformes Gastornithiformes...
67 KB (7,867 words) - 08:06, 21 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...
110 KB (13,765 words) - 11:50, 27 July 2024
Songlingornithiformes Hongshanornithidae Gansuiformes Ichthyornithiformes Hesperornithes Lithornithiformes Dinornithiformes Aepyornithiformes Gastornithiformes...
54 KB (6,845 words) - 02:51, 13 July 2024
Songlingornithiformes Hongshanornithidae Gansuiformes Ichthyornithiformes Hesperornithes Lithornithiformes Dinornithiformes Aepyornithiformes Gastornithiformes...
4 KB (320 words) - 16:19, 22 April 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) - 04:57, 11 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