The Superclass Chelicerata is a member of the Infraphylum Cheliceriformes. Here is the complete "parentage" of Chelicerata:
- Domain: Eukaryota
Whittaker & Margulis,1978 - eukaryotes
- Kingdom: Animalia
C. Linnaeus, 1758 - animals
- Subkingdom: Bilateria
(Hatschek, 1888) Cavalier-Smith, 1983 - bilaterians
- Branch: Protostomia Grobben, 1908 - protostomes
- Subkingdom: Bilateria (Hatschek, 1888) Cavalier-Smith, 1983 - bilaterians
- Kingdom: Animalia C. Linnaeus, 1758 - animals
The Superclass Chelicerata is further organized into finer groupings including:
Arachnids are a class (Arachnida) of joint-legged invertebrate animals in the subphylum Chelicerata. All arachnids have eight legs, although in some species the front pair may convert to a sensory function, while in other species, different appendages may grow large enough so as to appear like an extra pair of legs. The term is derived from the Greek words (ar?chne), meaning "spider". [more]
Sea spiders, also called Pantopoda or pycnogonids, are marine arthropods of class Pycnogonida. They are cosmopolitan, found especially in the Mediterranean and Caribbean Seas, as well as the Arctic and Antarctic Oceans. There are over 1300 known species, ranging in size from 1 to 10 millimetres (0.039 to 0.39 in) to over 90 cm (35 in) in some deep water species. Most are toward the smaller end of this range in relatively shallow depths, however, they can grow to be quite large in Antarctic waters. [more]
At least 10 species and subspecies belong to the Class Xiphosura.
More info about the Class Xiphosura may be found here.
- The text on this page is licensed under the GNU Free Documentation License.
- Photographs on this page are copyrighted by individual photographers, and individual copyrights apply.
- The technology underlying this page, including the controls behind Keep Exploring, is owned by the BayScience Foundation. All rights are reserved.