Podotremata
{{Short description|Group of crabs}}
{{automatic taxobox
| image = Sponge crab eating a sea urchin.jpg
| image_caption = Dromia dormia (Dromioidea: Dromiidae) feeding on a sea urchin
| taxon = Podotremata
| authority = Guinot, 1977
| subdivision_ranks = Superfamilies
| subdivision = 5; see text
}}
Podotremata is a traditionally used section of crabs (Brachyura), now considered to be invalid. It was the smaller grouping of crabs, separate from the larger Eubrachyura section. Morphological and molecular analyses do not reveal a monophyletic Podotremata, but rather that it is paraphyletic, and so the most recent classifications divide "Podotremata" into three sections: Dromiacea, Cyclodorippoidea and Raninoida.{{cite journal |journal = Raffles Bulletin of Zoology |year=2009 |volume = Suppl. 21 |pages=1–109 |title = A classification of living and fossil genera of decapod crustaceans |author1=Sammy De Grave |author2=N. Dean Pentcheff |author3=Shane T. Ahyong |url=http://rmbr.nus.edu.sg/rbz/biblio/s21/s21rbz1-109.pdf|display-authors=etal}}{{cite journal |title=Evolutionary History of True Crabs (Crustacea: Decapoda: Brachyura) and the Origin of Freshwater Crabs |author1=Ling Ming Tsang |author2=Christoph D. Schubart |author3=Shane T. Ahyong |author4=Joelle C.Y. Lai |author5=Eugene Y.C. Au |author6=Tin-Yam Chan |author7=Peter K.L. Ng |author8=Ka Hou Chu |journal=Molecular Biology and Evolution |publisher=Oxford University Press |volume=31 |issue=5 |year=2014 |pages=1173–1187 |doi=10.1093/molbev/msu068 |doi-access=free}}
This group contains the following superfamilies (with their current sections indicated in parentheses):
- Cyclodorippoidea (Cyclodorippoida)
- Homolodromioidea (Dromiacea)
- Dromioidea (Dromiacea)
- Homoloidea (Dromiacea)
- Raninoidea (Raninoida)
Here is a cladogram showing the placement of the former members of Podetremata (highlighted in bold) within Brachyura:{{cite journal |last1=Wolfe |first1=Joanna M. |last2=Breinholt |first2=Jesse W. |last3=Crandall |first3=Keith A. |last4=Lemmon |first4=Alan R. |last5=Lemmon |first5=Emily Moriarty |last6=Timm |first6=Laura E. |last7=Siddall |first7=Mark E. |last8=Bracken-Grissom |first8=Heather D. |url=https://royalsocietypublishing.org/doi/10.1098/rspb.2019.0079 |title=A phylogenomic framework, evolutionary timeline and genomic resources for comparative studies of decapod crustaceans |journal=Proceedings of the Royal Society B | date=24 April 2019 |volume=286 |issue=1901 |doi=10.1098/rspb.2019.0079| pmc=6501934 |pmid=31014217 |doi-access=free }}
{{clade| style=font-size:85%; line-height:85%
|label1=Brachyura
|1={{clade
|1=Dromiacea
|2={{clade
|1={{clade
|1=Raninoida
|2=Cyclodorippoida }}
|label2=Eubrachyura
|2={{clade
|2=Thoracotremata }} }} }} }}