Zavrofaganaks ( lat. Saurophaganax , literally - a reptile eater) - a genus of lizardotazovy dinosaurs from the allosaurus family, living at the end of the Jurassic period ( 155.7-145.0 million years ago [2] ) in the United States [ 3] .
| † Zaurofaganax |
Reconstruction of the skeleton of saurofaganaks ( Sam Noble Oklahoma Museum of Natural History ) |
| Scientific classification |
|---|
| No rank : | Bilateral symmetrical |
| Infraclass : | Archosauromorphs |
| No rank : | Archosauriformes |
| Superfamily : | † Allosaurus |
|
| International scientific name |
|---|
Saurophaganax Chure , 1995 |
| Single view |
|---|
† Saurophaganax maximus Chure, 1995 - synonym [1] :
- Allosaurus maximus (Chure, 1995)
|
Geochronology155.7-145.0 Ma | million years | Period | Era | Aeon |
|---|
| 2,588 | Even | | | Ka | F
but
n
e
R
about
s
about
th | | 23.03 | Neogene | | 66.0 | Paleogen | | 145.5 | a piece of chalk | M
e
s
about
s
about
th | | 199.6 | Yura | | 251 | Triassic | | 299 | Permian | P
but
l
e
about
s
about
th | | 359.2 | Carbon | | 416 | Devonian | | 443.7 | Silur | | 488.3 | Ordovician | | 542 | Cambrian | | 4570 | Precambrian |
◄ Nowadays◄ Cretaceous-Paleogene extinction◄ Triassic extinction◄ Mass Permian Extinction◄ Devonian extinction◄ Ordovician-Silurian extinction◄ Cambrian explosion |
|---|
|
Content
The generic name comes from the Greek. σαυρος (lizard) and θαγεν (eat, eat). The combination of these words has the meaning "lizard eater".
In 1931 and 1932, John Willis Stovall discovered the remains of a large theropod near Kenton , Cimarron County, Oklahoma . In 1941 they were named Saurophagus maximus [4] . In 1950, Stovall described his findings [5] . In 1995, Don Chur gave the dinosaur the name Saurophaganax maximus . In 1998, David C. Smith analyzed the structure of the animal, and as a result concluded that saurofaganax is an especially large species of the genus Allosaurus . Already in 2004, his conclusion was finally refuted, confirming the independence of the genus Saurophaganax [2] .
Zaurofaganaks had a length of up to 13 m [6] and a weight of up to 4 tons. With such sizes, this predator was larger than the allosaurus and torosaurus , that is, saurofaganax is the highest predator of Late Jurassic North America. The difference between the allosaurus and the saurofaganax is in size, as well as in the shape of the neck and vertebrae.
The huge female “allosaurus” from the Air Force documentary “ The Ballad of the Big Al ”, judging by the size of 12 m, is a saurofaganax. Also, saurofaganax is shown in the fourth episode of the series " Planet of Dinosaurs " attacking an allosaurus.
- ↑ † Saurophaganax maximus information on the Fossilworks website. (Retrieved August 3, 2016) .
- ↑ 1 2 Saurophaganax . Paleobiology Database Classic . (Retrieved August 3, 2016) .
- ↑ Turner, CE and Peterson, F. (1999). “Biostratigraphy of dinosaurs in the Upper Jurassic Morrison Formation of the Western Interior, USA” Pp. 77–114 in Gillette, DD (ed.), Vertebrate Paleontology in Utah . Utah Geological Survey Miscellaneous Publication 99-1
- ↑ Ray, GE (1941). “Big for his day,” Natural History 48 : 36–39.
- ↑ Stovall JW, Langston W. Jr. Acrocanthosaurus atokensis , a New Genus and Species of Lower Cretaceous Theropods From Oklahoma (Eng.) // American Midland Naturalist: journal. - 1950. - Vol. 43 , no. 3 . - P. 696-728 .
- ↑ Holtz, Thomas R. Jr. (2011). Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages, Winter 2010 Appendix.
