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 t ...
. Members of this order have existed for at least 72 million years, including the present. The oldest known species is ''
Beorn leggi''.
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
Eutardigrada are a class of tardigrades (Tardigrada) without lateral appendices. Primarily freshwater bound, some species have secondarily gained ...
*
Hypsibioidea
**
Calohypsibiidae
**
Hypsibiidae
The Hypsibiidae are a family of water bears or moss piglets, tardigrades in the class Eutardigrada.
Subfamilies and genera
* Subfamily Diphasconinae
** '' Diphascon''
** '' Hebesuncus''
** '' Paradiphascon''
* Subfamily Hypsibiinae
** '' Acut ...
**
Microhypsibiidae
''Microhypsibiidae'' is a family of water bear or moss piglet, a tardigrade in the class Eutardigrada
Eutardigrada are a class of tardigrades (Tardigrada) without lateral appendices. Primarily freshwater bound, some species have secondarily ga ...
**
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
''Necopinatidae'' is a family of water bears or moss piglets, tardigrades in the class Eutardigrada
Eutardigrada are a class of tardigrades (Tardigrada) without lateral appendices. Primarily freshwater bound, some species have secondarily gain ...
**
Richtersiidae
Richtersiidae 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 in ...
References
External links
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Protostome orders
Polyextremophiles
{{Tardigrade-stub