Back رأسيات الدرقة Arabic راسيات الدرقه ARZ Sefalokaridlər Azerbaijani Цефалокариди Bulgarian Cefalocàrides Catalan Cephalocarida CEB Cephalocarida German Cephalocarida Esperanto Cephalocarida Spanish خرچنگان Persian
| Cephalocarida Temporal range:
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| Hutchinsoniella macracantha | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Cephalocarida Sanders, 1955 |
| Order: | Brachypoda Birshteyn, 1960 |
| Family: | Hutchinsoniellidae Sanders, 1955 |
| Genera | |
| Synonyms | |
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The Cephalocarida are a class in the subphylum Crustacea comprising only 12 species. Both the nauplii and the adults are benthic.[1] They were discovered in 1955 by Howard L. Sanders,[2] and are commonly referred to as horseshoe shrimp. They have been grouped together with the Remipedia in the Xenocarida. Although a second family, Lightiellidae, is sometimes used, all cephalocaridans are generally considered to belong in just one family: Hutchinsoniellidae. Fossil records of cephalocaridans has been found in 462 million year old deposits.[3]
- ^ Key for the identification of crustacean nauplii - GfBS
- ^ Howard L. Sanders (1955). "The Cephalocarida, a new subclass of Crustacea from Long Island Sound". Proceedings of the National Academy of Sciences. 41 (1): 61–66. Bibcode:1955PNAS...41...61S. doi:10.1073/pnas.41.1.61. JSTOR 89010. PMC 528024. PMID 16589618.
- ^ Welsh fossils uncover an ancient 'marine dwarf world'
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