Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Cladus: Pancrustacea
Superclassis: Multicrustacea
Classis: Malacostraca
Subclassis: Eumalacostraca
Superordo: Eucarida
Ordo: Decapoda
Subordo: Pleocyemata
Infraordo: Brachyura
Sectio: Dromiacea
Superfamiliae: Dromioidea - Homolodromioidea
Vernacular names
中文: 绵蟹派
Dromiacea is a group of crabs, ranked as a section. It contains 240 extant and nearly 300 extinct species.[1] Dromiacea is the most basal grouping of Brachyura crabs, diverging the earliest in the evolutionary history, around the Late Triassic or Early Jurassic. Below is a cladogram showing Dromiacea's placement within Brachyura: [2] [3]
| Brachyura |
|
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The larvae of Dromiacea resemble those of the Anomura more closely than those of other crabs.[citation needed] This may simply reflect their basal position in the crab phylogeny. The superfamily Eocarcinoidea, containing Eocarcinus and Platykotta, was previously considered to be a member of the Dromiacea, but has since been transferred to the Anomura.[4]
The fossil record of Dromiacea reaches back at least as far as the Jurassic,[5] and, if Imocaris is indeed a member, into the Carboniferous.[6]
Dromiacea primarily consists of two groups of superfamilies - Dromioidea and Homoloidea. See the below cladogram:[2]
| Dromiacea |
|
Recent studies have found that some of the families may not be monophyletic, but rather paraphyletic.[2]
The Dromioidea family Dromiidae may be paraphyletic with respect to Dynomenidae
The Homoloidea family Homolidae is paraphyletic with respect to Latreilliidae
References
Sammy De Grave; N. Dean Pentcheff; Shane T. Ahyong; et al. (2009). "A classification of living and fossil genera of decapod crustaceans" (PDF). Raffles Bulletin of Zoology. Suppl. 21: 1–109. Archived from the original (PDF) on 2011-06-06.
Ling Ming Tsang; Christoph D. Schubart; Shane T. Ahyong; Joelle C.Y. Lai; Eugene Y.C. Au; Tin-Yam Chan; Peter K.L. Ng; Ka Hou Chu (2014). "Evolutionary History of True Crabs (Crustacea: Decapoda: Brachyura) and the Origin of Freshwater Crabs". Molecular Biology and Evolution. 31 (5). Oxford University Press : 1173–1187. doi:10.1093/molbev/msu068. PMID 24520090.
Wolfe, Joanna M.; Breinholt, Jesse W.; Crandall, Keith A.; Lemmon, Alan R.; Lemmon, Emily Moriarty; Timm, Laura E.; Siddall, Mark E.; Bracken-Grissom, Heather D. (24 April 2019). "A phylogenomic framework, evolutionary timeline and genomic resources for comparative studies of decapod crustaceans". Proceedings of the Royal Society B. 286 (1901). doi:10.1098/rspb.2019.0079. PMC 6501934. PMID 31014217.
Jérôme Chablais; Rodney M. Feldmann; Carrie E. Schweitzer (2011). "A new Triassic decapod, Platykotta akaina, from the Arabian shelf of the northern United Arab Emirates: earliest occurrence of the Anomura" (PDF). Paläontologische Zeitschrift. 85 (1): 93–102. Bibcode:2011PalZ...85...93C. doi:10.1007/s12542-010-0080-y.
J. W. Wägele (2009). "On the influence of fishes on the evolution of benthic crustaceans". Journal of Zoological Systematics and Evolutionary Research. 27 (4): 297–309. doi:10.1111/j.1439-0469.1989.tb00352.x.
Frederick Schram & Royal Mapes (1984). "Imocaris tuberculata, n. gen., n. sp. (Crustacea: Decapoda) from the upper Mississippian Imo Formation, Arkansas". Transactions of the San Diego Society of Natural History. 20 (11): 165–168.
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