Poduromorpha

Taxobox
name = Poduromorpha


image_width = 240px
image_caption = Water Springtails, "Podura aquatica" (Poduridae)
regnum = Animalia
phylum = Arthropoda
subphylum = Hexapoda
classis = Entognatha (disputed)
subclassis = Collembola
ordo = Poduromorpha
ordo_authority =
subdivision_ranks = Superfamilies
subdivision =
Gulgastruroidea

Hypogastruroidea

Isotogastruroidea

Neanuroidea

Onychiuroidea

Poduroidea

synonyms =PoduroideaVerify source|date=July 2008

The order Poduromorpha is one of the three main groups of springtails (Collembola), tiny hexapods related to insects. This group was formerly treated as a superfamily Poduroidea.

They can be best distinguished from the other springtail groups by their body shape. The Symphypleona are very round animals, almost spherical. The Entomobryomorpha contain the slimmest springtails, some with long and some with short legs and antennae, but always with a very slender body. The Poduromorpha, by contrast, always have short legs and a plump body, but more oval in shape than the Symphypleona.

ystematics

The Poduromorpha were, as Poduroidea, united with the Entomobryomorpha (then called Entomobryoidea) in a group called "Arthropleona", but this has more recently turned out to be paraphyletic. Actually the Entomobryomorpha, the Poduromorpha, and the third springtaill lineage – the Symphypleona – are equally distinct from each other. Their treatment at equal taxonomic rank reflects this. Their rank has also varied a bit. When the springtails were still believed to be an order of insects, the "Arthropleona" and the Symphypleona were treated as suborders. [See references in Haaramo (2008)]

List of families

Includes fossil families.

Superfamily Neanuroidea
* Family Brachystomellidae
* Family Neanuridae
* Family OdontellidaeSuperfamily Poduroidea
* Family PoduridaeSuperfamily Hypogastruroidea
* Family Hypogastruridae
* Family Pachytullbergiidae
* Family PaleotullbergiidaeVerify source|date=July 2008 Superfamily Gulgastruroidea
* Family GulgastruridaeSuperfamily Onychiuroidea
* Family Onychiuridae
* Family TullbergiidaeSuperfamily Isotogastruroidea
* Family Isotogastruridae

Footnotes

References

* (2008): Mikko's Phylogeny Archive - [http://www.helsinki.fi/~mhaaramo/metazoa/protostoma/arthropoda/collembola.html Collembola] . Version of 2008-MAR-11. Retrieved 2008-JUL-11.