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Superclasse CHELICERATA.
62981
Superclasse CHELICERATA.
http://www.terra.unimo.it/appunti/294.pdf
Cheli. 1 i Subphylum CHELICERATA i Questo subphylum dartropodi i fa parte dei Merostomata i, oggi rappresen- tati da soli tre generi, che vivono in ambienti marini marginali.
Biology > Biota > Fauna > Arthropoda > Chelicerata
carapace specie subphylum limulus polyphemus nauplius balanus phylum crustacea calcite biradiate
Jan 1, 2007
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Other links at Biology > Biota > Fauna > Arthropoda > Chelicerata
This review analyses the mechanisms of neurogenesis, the morphology of serotonergic interneurons, the number of motoneurons, and cellular features and development of the lateral eyes of Chelicerata.
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The arthropod group Chelicerata includes animals as diverse as spiders, scorpions, mites, ticks and horseshoe crabs. In addition to these well-known living animals, it includes important extinct groups such as the eurypterids (sea "scorpions").
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very reduced abdomen - typically have 1 pair chelicerae (3-segmented), 1 pair ovigers, 4 pair walking legs, and simple eyes - unusual reproductive biology: males brood embryos on special legs (ovigers); only arthropod group with sole male parental care!
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The Cheliceramorpha includes spiders and scorpions, mites and ticks, horseshoe crabs, daddy-longlegs, and extinct "sea-scorpions".
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Comment Citation: Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed June 07, 2007 at http://animaldiversity.org.
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Site Index Site Search Home Data Search -- Plants/Animals -- Ecological Communities About the Data -- Data Coverage -- Data Types -- Sources About Us Contact Us Help -- Glossary -- Contact Us -- Site Search -- Help Topics User Preferences NatureServe Explorer Species Index Species Index Home
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Chelicerata Fossils Fossil Pictures Fossils of Phylum Arthropoda Subphylum Chelicerata Of related interest: Subphylum Chelicerata Aglaspid Arthropod Class: Merostomata Weeks Formation Millard County, Utah Eurypterus remipes Class Merostomata Upper Silurian Bertie Group, New York Euproops Horse
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The 75000 species within this subphylum belong to three diverse classes. The Classes Merostomata and Pycnogonida include relatively minor, aquatic organisms, the Class Arachnida comprises the vast majority of species (74000 + ) and includes spiders, scorpions, mites and ticks.
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Fossils on display, Geological Museum, University of Oslo, Norway: Chelicerata showcase
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Cheli. 1 i Subphylum CHELICERATA i Questo subphylum dartropodi i fa parte dei Merostomata i, oggi rappresen- tati da soli tre generi, che vivono in ambienti marini marginali.
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