Morganukodon ( lat. Morganucodon , "teeth from Glamorgan ", according to the Latin name of this area in Wales in the "Doomsday Book" ) is one of the oldest mammals that existed in the Late Triassic and presumably extinct in the early Jurassic period. For the first time his remains were found in Glamorgan Walter Georg Kühne [1] .
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 Reconstruction M. watsoni | ||||||||||||||
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Rhode lived on Earth 221-210 million years ago. It is identified with eostrozodon [2] .
Unlike many other early mammals, morganukodon is well represented by numerous and well-preserved, although largely dissected, material. Most of the material comes from Glamorgan ( Morganucodon watsoni ), but fossil remains are also found in Yunnan Province in the People's Republic of China ( Morganucodon oehleri ), in many places in Europe and North America. Some apparently closely related animals ( megazostrodon ) are known for their unique remains found in South Africa [3] .
Content
Characteristics and lifestyle
Like most of the early mammals, the morganucodon was a small, fur-covered animal relying on the entire foot. The tail was relatively long. According to Kemp (Kemp, 2005) “the length of the skull was 2-3 cm, the length of the body was about 10 cm. It looked like a mouse or a shrew” [4] .
Morganukodon, apparently, led a nocturnal lifestyle , and the day was in a hole. The diet consisted, apparently, of insects and other small animals. Most likely, the morganukodon laid eggs.
Classification
The following is the classification of species according to McKenne and Bell [5] :
- Order Morganucodonta
- Family of morganucodontidae
- Genus morganucodon
- Genus Eozostrodon
- Brachyzostrodon genus
- Rod Helvetiodon
- Genus Erythrotherium
- Rod Wareolestes
- Family of morganucodontidae
- Phylogeny according to Z. Kelan-Yavorovskaya et al. [6]
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See also
- List of genera of Mesozoic mammals
Notes
- ↑ Walter G. Kühne, “On the Triconodont of the Glamorgan”, Proceedings of the Zoological Society of London , volume 119 (1949–1950) pages 345–350
- ↑ Page 79 in FA Jenkins, Jr. and AW Crompton, "Triconodonta", Chapter 4 pages 74-90 of Mammals History , edited by Jason A. Lillegraven , Zofia Kielan-Jaworowska and William A. Clemens , University of California Press: Berkeley , Los Angeles, London, 1979 ISBN 0-520-03582-8
- 21 Pages 21-33, 174 in Zofia Kielan-Jaworowska , Richard L. Cifelli and Zhe-Xi Luo , Mammals from the Age of Dinosaurs: Origins, Evolution, and Structure, Columbia University Press, New York, 2004 ISBN 0-231- 11918-6
- ↑ Kemp TS 2005. Oxford University Press, page 143. ISBN 0-19-850760-7 .
- 5 pages 511-512, Malcom C. McKenna and Susan K. Bell, Classification of Mammals Above the Species Level , Columbia University Press, 1997. ISBN 0-231-11012-X
- ↑ Luo, Kielan-Jaworowska & Cifelli, 2002, and Kielan-Jaworowska, Cifelli & Luo, 2004