To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
Languages
Recent
Show all languages
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

From Wikipedia, the free encyclopedia

Regisaurus
Temporal range: Early Triassic
Skull cast seen from below, Museum of Evolution of Polish Academy of Sciences, Warsaw
Scientific classification
Kingdom:
Phylum:
Class:
Order:
Suborder:
Family:
Genus:
Regisaurus
Species
  • R. jacobi Mendrez, 1972

Regisaurus ("Rex's lizard", named after Francis Rex Parrington) is an extinct genus of small carnivorous therocephalian. It is known from a single described species, the type species Regisaurus jacobi, from the Early Triassic Lystrosaurus Assemblage Zone of South Africa, although at least one undescribed species is also known.[1]

YouTube Encyclopedic

  • 1/1
    Views:
    84 159
  • Learn 40 dinosaurs names / How many dinosaurs names do you know? / Dinosaurs Expert/

Transcription

Description

Restoration

It was a rather derived baurioid, with a robust skull, short tail, long limbs and relatively large canines. It was apparently related to Urumchia and like Urumchia, it had vomer bones, which form the secondary palate, but they do not narrow to a tip like in Urumchia. However, it retained some primitive characteristics. It had six incisor teeth in each side of the jaw, whereas other baurioids had less.[2] It was probably carnivorous, and ate insects and small vertebrates

Discovery and species

Regisaurus was discovered in 1964 by James W. Kitching and it was named in 1972 by C. H. Mendrez. Two species are known, the type species Regisaurus jacobi and an additional undescribed species. R. jacobi is known from the holotype FRP 1964/27 and the referred specimen BP/1/3973,[3] while the undescribed species is known only from the Holotype T837.[4][5]

Classification

Below is a cladogram modified from Sidor (2001) and Huttenlocker (2009):[6][7]

Baurioidea

Ictidosuchops rubidgei

Ictidosuchidae

Ictidosuchus primaevus

Ictidosuchoides longiceps

Regisauridae

Regisaurus jacobi

Urumchia lii

 Karenitidae 

NHCC LB44 (Unnamed Zambian karenitid)

Karenites ornamentatus

Lycideopidae

Lycideops longiceps

Choerosaurus dejageri

Tetracynodon tenuis

Tetracynodon darti

Scaloposaurus constrictus

Ericiolacertidae

Ericiolacerta parva

Silphedosuchus orenburgensis

Nothogomphodon danilovi

"Ordosiidae"

Hazhenia concava

Ordosiodon youngi

Bauriidae

Bauria cynops

Antecosuchus ochevi

Microgomphodon oligocynus

Traversodontoides wangwuensis

See also

References

  1. ^ C. H. Mendrez (1972). "On the skull of Regisaurus jacobi, a new genus and species of Bauriamorpha Watson and Romer 1956 (=Scaloposauria Boonstra 1953), from the Lystrosaurus-zone of South Africa". In K. A. Joysey; T. S. Kemp (eds.). Studies in Vertebrate Evolution. Edinburgh: Oliver & Boyd. pp. 191–212. ISBN 9780050021316.
  2. ^ http://wiredspace.wits.ac.za/bitstream/handle/10539/16101/2007.v.42.Fourie_%26_Rubidge_Postcranial_anatomy_therocephalian.pdf?sequence=1[bare URL PDF]
  3. ^ "Untitled Document".
  4. ^ Kemp, T. S. (1986). "The skeleton of a baurioid therocephalian therapsid from the Lower Triassic (Lystrosaurus Zone) of South Africa" (PDF). Journal of Vertebrate Paleontology. 6 (3): 215–232. doi:10.1080/02724634.1986.10011617. JSTOR 4523096. Retrieved 26 March 2011.
  5. ^ "Untitled Document".
  6. ^ Sidor, C.A. (2001). "Simplification as a trend in synapsid cranial evolution" (PDF). Evolution. 55 (7): 1419–1442. doi:10.1554/0014-3820(2001)055[1419:saatis]2.0.co;2. PMID 11525465.
  7. ^ Huttenlocker, A. (2009). "An investigation into the cladistic relationships and monophyly of therocephalian therapsids (Amniota: Synapsida)". Zoological Journal of the Linnean Society. 157 (4): 865–891. doi:10.1111/j.1096-3642.2009.00538.x.
This page was last edited on 30 October 2023, at 14:09
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.