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Order of springtails From Wikipedia, the free encyclopedia
The order Symphypleona, also known as the globular springtails, is one of the three main groups of springtails (Collembola), tiny hexapods related to insects. When the springtails were still believed to be an order of insects, the Symphypleona were ranked as a suborder.
Symphypleona | |
---|---|
Allacma fusca from forest near Cologne, Germany | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Subclass: | Collembola |
Order: | Symphypleona |
Superfamilies | |
Dicyrtomoidea | |
Synonyms | |
Neopleona |
They can be best distinguished from the other springtail groups by their body shape. The Symphypleona are very round animals, almost spherical, and usually have long antennae. The Poduromorpha, by contrast, always have short legs and a plump body, but more oval in shape than the Symphypleona. The Entomobryomorpha are the slimmest springtails, some with long and some with short legs and antennae, but always with a very slender body.
The Symphypleona order was previously suggested to also contain family Neelidae, as a very apomorphic relative in the Sminthuridae superfamily.[citation needed] Phylogenetic studies however suggest Neelidae to be the only family of Neelipleona order.[1][2][3][4]
The following is a list of the families within Symphypleona, grouped by superfamily. It includes extinct families known only from fossil remains.
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