Thoracotremata
Sign in to saveThoracotremata is a clade of crabs, comprising those crabs in which the genital openings in both sexes are on the sternum, rather than on the legs. It comprises 17 families in four superfamilies .
Species
Subsection
- PhylumArthropoda
- ClassMalacostraca
- OrderDecapoda
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Wikidata facts
- Instance of
- taxon
- Parent taxon
- Eubrachyura
- Image
- Purple rock crab444.jpg
Show 3 more facts
- taxon name
- Thoracotremata
- topic's main category
- Category:Thoracotremata
- Commons category
- Thoracotremata
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Encyclopedic overview
3 sectionsContents
- Evolution
- Superfamilies and families
- References
Thoracotremata is a clade of crabs, comprising those crabs in which the genital openings in both sexes are on the sternum, rather than on the legs. It comprises 17 families in four superfamilies .
==Evolution== Thoracotremata is the sister group to Heterotremata 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:
Excerpted from Wikipedia’s “Thoracotremata” article, available under the CC BY-SA 4.0 licence.