Parachela is an order of
tardigrade
Tardigrades (), known colloquially as water bears or moss piglets, are a phylum of eight-legged segmented micro-animals. They were first described by the German zoologist Johann August Ephraim Goeze in 1773, who called them Kleiner Wasserbär ...
s in the class
Eutardigrada
Eutardigrada are a class of tardigrades (Tardigrada) without lateral appendices. Primarily freshwater bound, some species have secondarily gained the ability to live in marine environments ('' Halobiotus''). By cryptobiosis many species are able ...
. Members of this order have existed for at least 72 million years, including the present. The oldest known species is ''
Beorn leggi
Beorn is a fictional character created by J. R. R. Tolkien, and part of his Middle-earth legendarium. He appears in '' The Hobbit'' as a "skin-changer", a man who could assume the form of a great black bear. His descendants or kinsmen, a group ...
''.
Superfamilies and families
The order includes the following superfamilies and families:
*
Eohypsiboiidea
**
Eohypsibiidae
''Eohypsibiidae'' is a family of water bear or moss piglet, tardigrades in the class Eutardigrada. It contains the following species in three genera:
* '' Austeruseus'' Trygvadottir, B. V. & Kristensen, R. M.(2011). "Eohypsibiidae (Eutardigrada, ...
*
Hypsibioidea
**
Calohypsibiidae
Calohypsibiidae is a family of tardigrade
Tardigrades (), known colloquially as water bears or moss piglets, are a phylum of eight-legged segmented micro-animals. They were first described by the German zoologist Johann August Ephraim Goeze ...
**
Hypsibiidae
**
Microhypsibiidae
**
Ramazzottiidae
*
Isohypsibioidea
**
Hexapodibiidae
**
Isohypsibiidae
*
Macrobiotoidea
**
Beornidae
**
Macrobiotidae
Macrobiotidae is a family of tardigrade. , it consists of the following genera:
* '' Biserovus''
* ''Calcarobiotus''
** ''C.'' (''Calcarobiotus'')
** ''C.'' (''Discrepunguis'')
* '' Famelobiotus''
* '' Insuetifurca''
* ''Macrobiotus''
* '' ...
**
Murrayidae
**
Necopinatidae
**
Richtersiidae
References
External links
*
*
Protostome orders
Polyextremophiles
{{Tardigrade-stub