| Parachela Temporal range: | |
|---|---|
 | |
| Hypsibius dujardini | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Tardigrada |
| Class: | Eutardigrada |
| Order: | Parachela |
| Superfamilies and families | |
|
See text | |
Parachela is an order of tardigrades in the class Eutardigrada. Members of this order have existed for at least 72 million years, including the present. The oldest known species is Beorn leggi.[2]
Superfamilies and families
The order includes the following superfamilies and families:
- Eohypsiboiidea
- Hypsibioidea
- Calohypsibiidae
- Hypsibiidae
- Microhypsibiidae
- Ramazzottiidae
- Isohypsibioidea
- Hexapodibiidae
- Isohypsibiidae
- Macrobiotoidea
- †Beornidae
- Macrobiotidae
- Murrayidae
- Necopinatidae
- Richtersiidae
References
- ↑ Budd, G. (2001). "Tardigrades as 'Stem-Group Arthropods': The Evidence from the Cambrian Fauna". Zoologischer Anzeiger. 240 (3–4): 265–279. doi:10.1078/0044-5231-00034. ISSN 0044-5231.
- ↑ Cooper, Kenneth W. (1964). "The First Fossil Tardigrade: Beorn Leggi Cooper, From Cretaceous Amber". Psyche: A Journal of Entomology. 71 (2): 41–48. doi:10.1155/1964/48418.
External links
Media related to Parachela at Wikimedia Commons
Data related to Parachela (tardigrade) at Wikispecies
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