Английская Википедия:Heterotremata

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Шаблон:Short description Шаблон:Automatic taxobox

Heterotremata is a clade of crabs, comprising those crabs in which the genital openings are on the sternum in females, but on the legs in males. It comprises 68 families in 28 superfamilies.[1]

Evolution

Heterotremata is the sister group to Thoracotremata within the clade Eubrachyura, having diverged during the Cretaceous period. Eubrachyura itself is a subset of the larger clade Brachyura, which consists of all "true crabs". A summary of the high-level internal relationships within Brachyura can be shown in the cladogram below: [2][3] Шаблон:Clade

The internal relationships within Heterotremata are less certain, with many of the superfamilies found to be invalid. The proposed cladogram below is from analysis by Tsang et al, 2014:[2] Шаблон:Clade

Superfamilies

Шаблон:Div col

Шаблон:Div col end

However, recent studies have found the following superfamilies and families to not be monophyletic, but rather paraphyletic or polyphyletic:[2][3]

References

Шаблон:Reflist

External links

Шаблон:Brachyura Шаблон:Taxonbar


Шаблон:Crab-stub