1. Introduction To The Arthropoda Introduction to the arthropoda. . . the REAL rulers of the Earth. . . B y nearly any measure, the most successful animals on the planet are the arthropods. http://www.ucmp.berkeley.edu/arthropoda/arthropoda.html

Introduction to the Arthropoda . . . the REAL rulers of the Earth. . . B y nearly any measure, the most successful animals on the planet are the arthropods. They have conquered land, sea and air, and make up over three-fourths of all currently known living and fossil organisms, or over one million species in all. Since many arthropod species remain undocumented or undiscovered, especially in tropical rain forests, the true number of living arthropod species is probably in the tens of millions. One recent conservative estimate puts the number of arthropod species in tropical forests at 6 to 9 million species (Thomas, 1990). Arthropods range in distribution from the deep sea to mountain peaks, in size from the king crab with its 12-foot armspan to microscopic insects and crustaceans , and in taste from chocolate covered ants to crawfish jambalaya and lobster Newburg. Despite this unbelievable diversity, the basic body plan of arthropods is fairly constant. Arthropods have a stiff cuticle made largely of chitin and proteins, forming an exoskeleton that may or may not be further stiffened with calcium carbonate. They have segmented bodies and show various patterns of segment fusion (

2. ADW: Arthropoda: Information Philip Myers s introduction to Phylum arthropoda, from the Animal Diversity Web. http://animaldiversity.ummz.umich.edu/site/accounts/information/Arthropoda.html

Overview News Technology Conditions of Use ... Home Kingdom Animalia Phylum Arthropoda Phylum Arthropoda crustaceans, insects, spiders, and relatives Information Pictures Specimens Sounds ... Classification editLink('skunkworks/.accounts/200310302028') 2010/10/09 00:26:58.946 GMT-4 By Phil Myers Kingdom: Animalia Phylum: Arthropoda Members of this Phylum Arthropods include an incredibly diverse group of taxa such as insects, crustaceans, spiders, scorpions, and centipedes. There are far more species of arthropods than species in all other phyla combined, and the number of undescribed species in the largest assemblage of arthropods, the insects, probably numbers in the tens of millions. Members of the phylum have been responsible for the most devastating plagues and famines mankind has known. Yet other species of arthropods are essential for our existence, directly or indirectly providing us with food, clothing, medicines, and protection from harmful organisms. The systematic relationships of arthropod groups is not fully understood, which is not surprising given the size and diversity of the phylum. Sources Hickman, C.P. and L. S. Roberts. 1994.

3. Arthropod - Wikipedia, The Free Encyclopedia An arthropod is an invertebrate animal having an exoskeleton (external skeleton), a segmented body, and jointed appendages. Arthropods are members of the phylum arthropoda (from Greek http://en.wikipedia.org/wiki/Arthropod

Arthropod From Wikipedia, the free encyclopedia Jump to: navigation search Arthropod PreЄ O S D ... Cambrian Extinct and modern arthropods Scientific classification Domain: Eukaryota Kingdom: Animalia Subkingdom: Eumetazoa Superphylum: Ecdysozoa Phylum: Arthropoda Latreille Subphyla and Classes Subphylum Trilobitomorpha Trilobita Subphylum Chelicerata Arachnida spiders scorpions , etc. Xiphosura horseshoe crabs , etc. Pycnogonida Eurypterida Subphylum Myriapoda Chilopoda centipedes Diplopoda ... Symphyla Subphylum Hexapoda Insecta Entognatha Subphylum Crustacea Branchiopoda brine shrimp etc. Remipedia Cephalocarida Maxillopoda barnacles ... fish lice , etc. Ostracoda Malacostraca lobsters crabs ... shrimp , etc. An arthropod is an invertebrate animal having an exoskeleton (external skeleton ), a segmented body, and jointed appendages . Arthropods are members of the phylum Arthropoda (from Greek arthron joint ", and podos foot ", which together mean "jointed feet"), and include the insects arachnids crustaceans , and others. Arthropods are characterized by their jointed limbs and cuticles , which are mainly made of α- chitin ; the cuticles of crustaceans are also biomineralized with calcium carbonate . The rigid cuticle inhibits growth, so arthropods replace it periodically by

4. Natural Perspective: Joint-Legs (Phylum Arthropoda) Phylum arthropoda (Joint-Legs) http://www.perspective.com/nature/animalia/arthropoda.html

Page 32 of 38 Natural Perspective The Animal Kingdom : Joint-Legs ( Arthropoda (Last modified: 21 July 1997) Arthropoda , the jointed leg spineless creatures of the world, are among the most maligned of all animals. This rule is not universal, of course. Many people adore Butterflies of the Order Lepidoptera and the ancient Egyptians even worshipped the Scarab Beetle of Order Coleoptera but on the whole, when modern governments spend money on Arthropods it is to find a way of eradicating them. Never-the-less, the "bugs" of this phylum have served an important role in the history of this planet, whether as carriers of the most devastating plagues in human history or for enabling the parallel evolution of our beautiful flowering plants. This large group of bugs and crustacians numbers 500,000 strong by today's counts. Scientists believe that up to 10,000,000 Arthropod species are alive today. Insects ( Class Insecta The majority of Arthropoda 290,000 species are insects. This includes the moth and stinkbug, pictured here as well as ants, bees, beetles, butterflies, flies, grashoppers, wasps and a whole lot more. Arachnids ( Class Arachnida Arachnids are eight-legged creatures including spiders, scorpions, and ticks.

5. Arthropods - Phylum Arthropoda Phylum arthropoda. This is the largest and most successful of the animal phyla, with over 1 000 000 species identified to date and an estimated 1 000 000 000 000 000 000 (1 http://www.angelfire.com/mo2/animals1/phylum/arthropod.html

Arthropods Please choose a group from the table below: Insects Millipedes Centipedes Arachnids Sea Spiders Horseshoe Crabs Remipedians Cephalocaridians Branchiopods Copepods and Barnacles Crabs and Amphipods Phylum Arthropoda This is the largest and most successful of the animal phyla, with over 1 000 000 species identified to date and an estimated 1 000 000 000 000 000 000 (1 quintillion) individuals alive today. Some scientists estimate that there are over 200 million insects for each single person. That's just insects alone, and doesn't include the countless millions of spiders, crustaceans, millipedes, centipedes, etc that make up the phylum Arthropoda. Arthropods are the most easily identifiable of all the animals, as they all share several things in common that no other animals share. First, all arthropods are protected by a hard exoskeleton (outer skeleton) composed of chitin (humans and other chordates have endoskeletons). This exoskeleton protects the organs, gives support for the body, and allows for efficient locomotion. However, because the exoskeleton cannot grow, it must periodically be shed to allow for the organism to grow. All arthropods have segmented bodies divided into a head, thorax, and abdomen. In some cases, such as with the lobster, the head and thorax are fused together. This is called a cephalothorax. Arthropods also have jointed appendages.

6. Arthropoda Phylogeny, bibliography, and links from the Tree of Life Project. http://www.tolweb.org/tree?group=Arthropoda&contgroup=Bilateria

7. Arthropoda Phylogeny, bibliography, and links from the Tree of Life Project. http://tolweb.org/tree?group=Arthropoda&contgroup=Bilateria

8. Arthropoda - Crustaceans, Insects The organisms in this phylum make up more than 75% of all the life on Earth. This phylum includes insects like butterflies and beetles; crustaceans like crabs and lobsters; and http://www.nhptv.org/wild/arthropoda.asp

Main Wild Files N.H. Animals Animals A-Z ... Animalia Arthropoda - crustaceans, insects The organisms in this phylum make up more than 75% of all the life on Earth. This phylum includes insects like butterflies and beetles; crustaceans like crabs and lobsters; and chelicerates like spiders and scorpions. Arthropods are found in all part of the world in a wide-variety of environments, from the deep sea to the frozen arctic regions. Over 800,000 species of arthropods have been identified, but scientists estimate that there may be tens of millions of species in this phylum, many of them yet to be discovered! Arthropods range in size from microscopic to the Japanese giant spider crab with a 12-foot span from left front leg to right front leg! The word arthropod is a combination of two Greek words - arthro meaning jointed and pod meaning foot. All arthropods have jointed legs, claws, and body segments! Arthropods have segmented bodies. Each body segment usually has a pair of appendages . The appendages can be antennae, wings, legs, or mouthparts! Body segments are connected by movable joints. Each body segment is covered with a hard exoskeleton called a cuticle . The cuticle is made of chitin . Chitin is the same material that fingernails are made from. Chitin is secreted from the arthropod's skin. Once it forms, the cuticle does not grow. When arthropods grow, they

9. Arthropoda: Definition From Answers.com The largest phylum in the animal kingdom; adults typically have a segmented body, a sclerotized integument, and manyjointed segmental limbs. http://www.answers.com/topic/arthropoda-1

10. Arthropoda LEFT The cicadas (seventeen year locusts) have two challenging 3D folds, and many narrow finishing folds. RIGHT The white cicada was folded by, and belongs to, Paul Close. http://www.folds.net/menagerie/arthropoda.html

The Arthropoda Page Showing Bugs and Crustaceans LEFT: The cicadas (seventeen year locusts) have two challenging 3-D folds, and many narrow finishing folds. RIGHT: The white cicada was folded by, and belongs to, Paul Close . Shown by permission. LEFT: The butterfly has very tiny legs; but it is straightforward to make if you have a fine enough grasp (or tweezers). CENTER: The dragonfly is made from the eagle base. LEFT: The caterpillar is a young butterfly. Its legs are even tinier than the butterfly's legs. LEFT: The asparagus beetle is a voracious pest. CENTER: The grasshopper has many sink folds. RIGHT: The preying mantis requires 100 steps, all of which are on-line. LEFT: The tarantula is fairly straightforward to make. It starts with a 1x1.5 paper, and ends with many small, thick folds. Personally, I think it looks more like a black widow than a hairy tarantula. CENTER: The lobster just requires sharp, accurate folding. RIGHT: This scorpion was folded by Nora Szasz Home page Origami Menagerie Comments ... The Jungle Books Thank you for visiting Jasper's Origami Menagerie by John Paulsen Your comments are welcomed.

11. PHYLUM ARTHROPODA PHYLUM arthropoda. SYNOPSIS. SUBPHYLUM Trilobitomorpha CLASS Trilobita Trilobites; SUBPHYLUM Chelicerata Scorpions and spiders CLASS Merostomata Horseshoe crabs http://faculty.vassar.edu/mehaffey/academic/animalstructure/outlines/arthropoda.

Outlines Biology 226 Home Page PHYLUM ARTHROPODA SYNOPSIS SUBPHYLUM Trilobitomorpha CLASS Trilobita: Trilobites SUBPHYLUM Chelicerata: Scorpions and spiders CLASS Merostomata: Horseshoe crabs CLASS Arachnida: Spiders, scorpions, ticks, mites CLASS Pycnogonida: Sea spiders SUBPHYLUM Mandibulata CLASS Myriapoda ORDER Chilopoda: Centipedes ORDER Diplopoda: Millipedes ORDER Symphyla ORDER Pauropoda CLASS Insecta (Hexapoda): Insects SUBCLASS Apterygota: wingless insects SUBCLASS Pterygota: winged insects. CLASS Crustacea: Crustaceans SUBCLASS Remipedia SUBCLASS Cephalocarida SUBCLASS Branchiopoda: Fairy shrimps, brine shrimps SUBCLASS Ostracoda: Mussel or seed shrimps SUBCLASS Copepoda: Copepods SUBCLASS Branchiura: Fish lice SUBCLASS Cirripedia: Barnacles SUBCLASS Tantulocarida SUBCLASS Malacostraca SUBCLASS Phyllocarida SUBCLASS Eumalacostraca: Crabs, shrimp, lobsters, crayfish, beach hoppers, pill bugs, etc. EXPANDED LISTINGS SUBPHYLUM Chelicerata: Scorpions and spiders CLASS Merostomata ORDER Eurypterida: Extinct "water scorpions" ORDER Xiphosura: Mostly extinct except horseshoe crabs CLASS Arachnida ORDER Scorpiones: true scorpions.

12. Systematik-entomologie.de - Systematik Entomologie Stammbaum der arthropoda bis zur Ebene der Gattungen mit Kurzbeschreibungen einiger Arthropoden-Gruppen (Systematik, Biologie, Ontogenese, kologie). http://www.systematik-entomologie.de/seiten/00arthropoda.htm

Systematik Entomologie systematik-entomologie.de dann zitate still , jan, institut, deutsche, fauna, floh, gefunden, apache, billig, unterschied, abteilungen, diskussionen, beantwortet, vorgestellt, bild, haustiere, bereich, insbesondere, check, hausaufgaben, ende, situation, ericsson

13. Arthropoda This page presents a brief overview of the arthropoda, from their origins to the present. http://www.peripatus.gen.nz/Taxa/Arthropoda/Index.html

Peripatus Home Page Biology Taxa Updated: 30 Jul 2006 Arthropoda Abstract This page presents a brief systematic overview of the Arthropoda, from their origins to the present. Keywords: Arthropoda, arthropod, Ecdysozoa, Tactopoda, Onychophora, Euarthropoda, Tardigrada, Arachnomorpha, Trilobita, Chelicerata, Crustacea, Mandibulata, Atelocerata, Hexapoda, segmentation, ecdysis Introduction Arthropods are bilaterally symmetrical segmented animals with paired and usually jointed appendages, on some or all of the body segments, with chitinous claws. The body is surrounded by a tough organic or organic-mineral cuticle, incorporating a -chitin, which functions as an exoskeleton. In order for the animals to grow, the exoskeleton must be moulted regularly. The mixocoel includes metanephridia and, except in tardigrades, an ostiate heart. Segments are added from a posterior growth zone during ontogeny. At least half of the described species of living animals are arthropods (mostly insects), but arthropods are less common as fossils. The most familiar group of fossil arthropods is undoubtedly the trilobites. Fossil groups have been incorporated into arthropod classification systems at least since the 18th century, but important new finds - especially of very early stem group organisms, such as those of the

14. Arthropods Of Economic Importance - Eurasian Tortricidae > Species of Phylum arthropodaEurasian Tortricidae provides information on the identification of leafrollers (family Tortricidae) of economic importance....... http://nlbif.eti.uva.nl/bis/tortricidae.php?menuentry=soorten&id=2

15. Crustacea Taxonomy reference information. http://tolweb.org/tree?group=Crustacea&contgroup=Arthropoda

16. Arthropod: Definition From Answers.com n. Any of numerous invertebrate animals of the phylum arthropoda, including the insects, crustaceans, arachnids, and myriapods, that are characterized by a chitinous http://www.answers.com/topic/arthropod

17. Is ‘the Drosophila‘ Actually Drosophila? « Arthropoda Celebrities commonly change their names on the path to stardom. Elton John began life as Reginald Kenneth Dwight, John Denver as Henry Deutschendorf, Jr, and Bela Lugosi as Be http://arthropoda.wordpress.com/2010/04/09/is-the-drosophila-actually-drosophila

Arthropoda I, for one, welcome our new chitinous overlords. Blog About Favorite Posts Contact ... Drosophila Published April 9, 2010 Dipterans (Flies) Comments Tags: Drosophila Fruit Fly Phylogenetics oid . Neil deGrasse Tyson even got hate mail from children when the American Museum of Natural History updated its displays accordingly. The change was the result of a non-unanimous scientific consensus attempting to better define the bodies of the solar system, but many people had become attached to the idea of PLANET Pluto and reacted negatively to the news. Drosophila melanogaster Photo by mr.checker D. melanogaster D. melanogaster model has exploded to become a principle contributer to research in genetics, neurology, development, biomechanics, and evolution. Found in almost any biology department around the world, this animal is of tremendous historical and contemporary importance to science; a true celebrity. However, there is one slight problem; Drosophila melanogaster is probably not Drosophila melanogaster The issue here is the status of the genus

18. ADW: Merostomata: Information Brief description of the class, from the Animal Diversity Web. http://animaldiversity.ummz.umich.edu/arthropoda/merostomata.html

Overview News Technology Conditions of Use ... Home Kingdom Animalia Phylum Arthropoda Class Merostomata Class Merostomata horseshoe crabs Information Pictures Specimens Classification editLink('skunkworks/.accounts/200310302544') 2010/10/14 00:09:22.149 GMT-4 By Phil Myers Kingdom: Animalia Phylum: Arthropoda Class: Merostomata Members of this Class (horseshoe crabs, eurypterids) The Merostomata includes two rather different groups of marine organisms, the eurypterids and the horseshoe crabs. Eurypterids are now extinct; they lived 200 to 500 million years ago. Some were huge, reaching a length of 3 m. Their morphology suggests that they fed on a variety of kinds of foods. Some may have been amphibious, emerging onto land for at least part of their life cycle. The horseshoe crabs are an ancient group, but only 5 species exist today. They feed on small invertebrates. Horseshoe crabs are often used as laboratory animals by physiologists. Members of this class have a large shield that covers the cephalothorax. The compound eyes are reduced. The second pair of appendages, the pedipalps, resemble walking legs. They have a long, spike-like appendage called a telson that projects from the rear of their bodies. Respiration is via book gills. Source Hickman, C.P. and L. S. Roberts. 1994.

19. ADW: Arthropoda: Pictures Abtrichia antennata starbellied spider Acanthepeira stellata starbellied spider Acanthepeira stellata starbellied spider Acanthepeira stellata starbellied spider http://animaldiversity.ummz.umich.edu/site/accounts/pictures/Arthropoda.html

Overview News Technology Conditions of Use ... Home Kingdom Animalia Phylum Arthropoda Phylum Arthropoda (crustaceans, insects, spiders, and relatives) Information Pictures Specimens Sounds ... Classification Abtrichia antennata starbellied spider Acanthepeira stellata starbellied spider Acanthepeira stellata starbellied spider Acanthepeira stellata starbellied spider Acanthepeira stellata Acanthocephala terminalis smaller yellow ant Acanthomyops claviger smaller yellow ant Acanthomyops claviger Achaearanea house spider Achaearanea tepidariorum Acherontia atropos Acherontia atropos Acherontia atropos short-horned grasshoppers Acrididae short-horned grasshoppers Acrididae Home About Us Special Topics Teaching ... Structured Inquiry Search Citation: Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2008. The Animal Diversity Web (online). Accessed November 01, 2010 at http://animaldiversity.org.

20. Arthropoda Arthropods. Arthropods first appeared over 560 million years ago and are now the most abundant and diverse group of multicellular metazoans on Earth with over a million species http://www.eoearth.org/article/Arthropoda

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