Planetetherium mirabile (lat.) Is a species of extinct herbivorous mammals from the order of the Wings of Wings , a typical and unique species of Planetetherium . It was inhabited in North America in the early Paleogene ( 56.8–55.8 million years ago) [2] (in the Clarkfork century ( Clarkforkian ) according to the North American geochronological scale ).
| † Planetetherium mirabile |
| Scientific classification |
|---|
| No rank : | Bilateral symmetric |
| Nadotryad : | Euarchontoglires |
| Rod: | † Planetetherium Simpson, 1928 |
| View: | † Planetetherium mirabile |
|
| International Scientific Name |
|---|
Planetetherium mirabile Simpson , 1928 [1] |
Geochronology56.8-55.8 Ma | million years | The epoch | Pd | Era |
|---|
| | Th | TO
but
th
n
about
s
about
th | | 2.588 | | | 5.33 | Pliocene | H
e
about
g
e
n | | 23.03 | Miocene | | 33.9 | Oligocene | P
but
l
e
about
g
e
n | | 55,8 | Eocene | | 65.5 | Paleocene | | 251 | Mesozoic |
◄ Nowadays◄ Cretaceous-Paleogene extinction |
|---|
|
The generic name is derived from the ancient-Greek. πλανήτης θηρίον , literally - a wandering beast.
The fossils were found in sediments formed at the site of cypress forests, which were probably the usual habitats of Planetetherium mirabile ( Wyoming and Montana : Discovery , Big Multi Locality; Carbon , Bear Creek [Eagle Creek Mine]; Teton , Red Creek).
From the moment of description, the systematic position of the genus was specified: Placentalia - Simpson, 1928; Plagiomeninae (not used) - Van Valen, 1967; Dermoptera - Gunnell, 1989; Plagiomenidae - McKenna, Bell, 1997.
The animal is about 25 cm long. The skeleton is very similar to the skeletons of modern wool flies; in particular, the teeth already formed a comb-like formation characteristic of modern members of the detachment.
The surviving remains do not allow us to make an unequivocal conclusion about whether Planetetherium mirabile possessed a flying membrane, like modern wool flies . However, judging by the proportions of the skeleton, the presence of a membrane is very likely [3] .
- ↑ Simpson GG 1928. A new mammalian fauna from the Fort of the Southern Montana. American Museum Novitates 297 : 1-15.
- ↑ Planetetherium mirabile (English) information on the Paleobiology Database site. (Checked February 12, 2018) .
- Mars The Marshall Illustrated Dinosaurs and Prehistoric Animals / Palmer D. - London: Marshall Editions, 1999. - P. 210. - ISBN 1-84028-152-9 .