- The Cephalocarida are a class in the subphylum Crustacea comprising only 12 species. Both the nauplii and the adults are benthic. They were discovered in 1955 by Howard L. Sanders, 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 have been found in the Ordovician Castle Bank site.Description and anatomy
These are hermaphroditic and pigmentless crustaceans with an elongated and translucent body that measures 2 to 4 mm (0.079 to 0.157 in) in length. A heart is present, and their exopods and pseudepipo… See more
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Cephalocarida - Wikipedia
Cephalocarida are a class of crustaceans with only 12 species, commonly called horseshoe shrimp. They have a translucent elongated body, a large head, and no eyes, and live in various sediments from the intertidal zone to 1,500 m depth.
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ADW: Cephalocarida: INFORMATION
Learn about cephalocarids, tiny crustaceans that resemble primitive crustaceans. Find out their characteristics, feeding habits, and references.
Cephalocarida (Cephalocarids) - Encyclopedia.com
- Cephalocarids, when first discovered in Long Island Sound, were thought to be the most primitive of living crustaceans. This view, based on much detailed work on Hutchinsoniella macracantha, stemmed from the fact that cephalocarids possessed limbs that were phyllopodous (that is, flattened and lobe like, with the shape maintained by fluid pressure)...
Cephalocarida - Simple English Wikipedia, the free encyclopedia
Cephalocarida is a class inside the subphylum Crustacea that has only twelve shrimp-like benthic species. They were discovered in 1955, and are commonly referred to as horseshoe shrimps. …
Cephalocarida - U.S. Fish & Wildlife Service
Working with others to conserve, protect and enhance fish, wildlife, plants and their habitats for the continuing benefit of the American people.
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Cephalocarida | Structure and Evolution of ... - Oxford Academic
Dec 1, 2015 · Cephalocarida are blind crustaceans with a cephalic shield, a thoracopod-like maxilla, and a second-order olfactory centre in the brain. This chapter reviews their nervous …
Cephalocarids: Cephalocarida - Encyclopedia.com
Cephalocarids (sef-fal-oh-KAR-ids) are small crustaceans, measuring 0.078 to 0.146 inches (2 to 3.7 millimeters) in length. The eyeless head is short, broad, and covered by a horseshoe …
Cephalocarida Characteristics - EasyBiologyClass
How to Identify Cephalocarida of Arthropoda? How Cephalocarida are Classified? Systematics of Cephalocarida, What is a Cephalocarida? Overview of the Class Cephalocarida.
Cephalocarida: Living Fossil Without a Fossil Record
This chapter reviews the morphology, biogeography, and phylogenetic significance of Cephalocarida, a small class of crustaceans that has no fossil record. It also discusses the …
Cephalocarida - GBIF
The Cephalocarida, a new subclass of Crustacea from Long Island Sound. <em>Proceedings of the National Academy of Science 41: 61-66.</em>
(PDF) 16. Cephalocarida - ResearchGate
Jun 19, 2014 · Cephalocarida include 13 species of small (ap proximately 2.5-3.5 mm) benthic crustaceans. All species are currently in one family, Hutchinsoniellidae Sanders, 1955, divided in five genera.
Cephalocarida - Wikispecies - Wikimedia
Dec 9, 2024 · The Cephalocarida, a new subclass of Crustacea from Long Island Sound. Proceedings of the National Academy of Sciences, 41(1): 61-66. DOI: 10.1073/pnas.41.1.61 …
(PDF) Cephalocarida - ResearchGate
Apr 1, 2020 · We provide a scanning electron micrograph of L. serendipita and the first complete key to the species in class Cephalocarida to help elucidate the taxonomy of this rare …
Cephalocarids: Cephalocarida - Physical Characteristics, …
Cephalocarids are usually found on or just below the surface of the muck that settles on the sea bottom, from shallow waters to depths of 5,250 feet (1,600 meters). This muck is rich in plant …
Morphology of the brain in Hutchinsoniella macracantha …
May 1, 2011 · In addition to Malacostraca, Branchiopoda, Remipedia, and “Maxillopoda”, Cephalocarida constitute one of the five higher taxa of Crustacea. The first species, …
(PDF) Cephalocarida - ResearchGate
Dec 1, 2015 · There is certain evidence that the first nervous systems are represented by rather simple sensory–motor circuits, followed by nerve nets (plexus) located within the epithelia, and …
Development of the nervous system in Cephalocarida ... - Springer
Jan 13, 2015 · The development of the nervous system in the cephalocarid Hutchinsoniella macracantha is investigated here for the first time using a combination of immunolabeling …
Cephalocarida - mindat.org
Cephalocarida. Photos. Photo Gallery. Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, …
The ovary structure and oogenesis in the basal crustaceans and …
Jul 1, 2014 · In Cephalocarida, the ovary structure has been investigated only in Hutchinsoniella macracantha (Hessler et al., 1995). Analysis of the published micrographs indicates that the …
Cephalocarida Arthropods List - Ritslog Hms Harvard
Dec 21, 2024 · Discover cephalocarida, a subclass of arthropods, comprising small crustaceans with primitive features, related to trilobites, mandibulates, and chelicerates, exhibiting unique …
