What are the main Morphology in a Ichthyosaurus?
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Morphology is another word for comparative anatomy.  Per Wikipedia: "Comparative anatomy is the study of similarities and differences in the anatomy of organisms. It is closely related to evolutionary biology and phylogeny (the evolution of species).\nTwo major concepts of comparative anatomy are:\nHomologous structures - structures (body parts/anatomy) which are similar in different species because the species have common descent. They may or may not perform the same function. An example is the forelimb structure shared by cats and whales.\nAnalogous structures - structures which are similar in different organisms because they evolved in a similar environment, rather than were inherited from a recent common ancestor. They usually serve the same or similar purposes. An example is the torpedo body shape of porpoises and sharks. It evolved in a water environment, but the animals have different ancestors."  So an Ichthyosaurus "were giant marine reptiles that resemble a dolphin with large teeth (see convergent evolution)"  So they morphology would be an analogous structure.  Flippers, rounded head, and long teeth is similiar to a porpoise but evolved differently.  Sorry, it's the best I can do.
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the types of fossils are:\n\n1.  body fossils - fossils of the actual body or body parts of an organism, whether altered or not\n2.  trace fossils - any evidence of past life that is not a body fossil.  Examples include tracks, trails, burrows, borings, impressions, molds, casts.\n3.  pseudofossils - are things that appear to be fossils but are not.  The most deceptive of these are the lacy dendrites of manganese dioxide.  Often, inorganic rock concentrations are thought to be fossilized soft parts of various animals. \n\nto form a fossil, there are important prerequisites:  there should bequick burial & there should be a hard part or parts of the organism. the the organixm is notquickly buried, bacteria or other animals may destroy it.  if the organism dies in an anaerobic environment (absence of oxygen) the soft tissues may also be preserved.
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dolphin and pike (Osteichthyes) have bones; sea cucumber and flounder do not have true bones they are cartelagenous fish (Chondrichthyes)  the sea cucumber has no skeletal system.
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Yes it is. It has a backbone and internal skeleton (characteristics of vertebrates).  Plus it is a reptile..and all reptiles are vertebrates.
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skeletal(striated)\nsmooth \ncardiac
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Illustration\nhttp://members.aol.com/DinoPixels/ankylo.html
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Ceratosaurus was a powerful predator that walked on two strong legs, had a strong, s-shaped neck, and had a short horn on its snout. It had a massive tail, a bulky body, and heavy bones. Its arms were short and it had four-finger hands (a primitive configuration) with sharp claws. It also had large eyes (and therefore probably had very good eyesight). Ceratosaurus was 15 to 20 feet long (4.5 to 6 m) long, weighing roughly 0.5 to 1 ton (500 kg to 1 tonne). It had a skull a snout horn and two short brow ridges, and bony knobs and ridges above its eyes and on the top of the head. This common hunter had large, powerful jaws with long, sharp, teeth.
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One of the most significant changes that occurred in early vertebrate evolution is that of the development of jaws.  Jaws first appeared generally in gnathostomes, but more specifically in shark like ancestors called placoderms. Present day sharks are the representative group of early vertebrates with jaws. \n\nThere are two theories on why jaws first evolved. One theory ("new skull") states that jaws evolved to aid in more efficient feeding and feeding on larger prey, which increased metabolic rate and thus allowed for a more active lifestyle. The other theory, "new mouth", states that jaws evolved to allow for more efficient ventilation mechanisms, which allowed for a higher metabolic rate and thus a more active lifestyle. Secondarily in this scenario, jaws also aided in more efficient feeding.\n\nAlso, it should be noted that many animal groups that evolved prior to the early vertebrates has pharyngeal slits or pharyngeal openings. That isn't really a characteristic specific to vertebrates as several pre-chordate and chordate groups have pharyngeal/gill slits.
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Ichthyosaurs are reptiles,which mean they do not have a constant body temperature like we humans do.They probably live in a clmate that's not too hot or too cold.If it's too hot or cold,the ichthyosaur would not be able to control its body temperature and die.They live their entire lives in water.
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Fossils that show intermediate characteristics are generally called transitional fossils. Transitional fossils are fossils that have characteristics that are intermediate in nature to organisms that existed both prior to it and after it. As such, transitional fossils are strongly suggestive of evolution. \n\nThere are many examples of transitional fossils in the fossil record. Examples include large-scale transitions such as from reptiles to birds (like the controversial archaeopteryx) and from reptiles to mammals, as well as more detailed transitions, such as those among the many hominids or the development of horses. The fact that, despite the rarity of fossilization, we have a wealth of transitional fossil data and that the fossil data generally conforms to the phylogenetic tree is strongly supportive of the idea of evolution
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Here are two links. The first dscribes it's taxonomical charicteristics, the second link has pictures.\n\nGood Luck.
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They have mouth openings often with flagellum to help with their filter feeding.  The tail end is thinner and is lighter in color/more transparent.  Just do an image search for amphioxus and see!
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ANY KIND OF ANIMAL WITH GILLS, SHARKS, FISH, ETC. I GUESS..
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I would look here for your answer and/or a link that could get you your answer http://en.wikipedia.org/wiki/Vertebrate\n\nGood Luck!!!
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http://yahooligans.yahoo.com/content/animals/reptiles/
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Deinonychus\n\n\n\n\n\nDeinonychus is a spectacular, but fairly small dinosaur. It measured about three and a half feet tall, and about nine feet long. Its weight is estimated at 150 pounds. By hunting in groups, members of a Deinonychus pack could have brought down dinosaurs much larger than themselves. In fact, the bones of several individuals of Deinonychus have been found with the skeleton of a large plant eating dinosaur, called Tenontosaurus.\n\nDeinonychus belongs to a family of dinosaurs called dromaeosaurs. They all share the same characteristics a lightly built skull with sharp backwardly curved teeth, elongated arms and hands with sharp claws, and an extraordinary sickle-like second toe claw which was carried raised off the ground to protect the sharp point. Dromaeosaurs probably had keen vision and their brains were relatively large for a dinosaur. The dromaeosaurs lived throughout the Cretaceous period, 140 to 65 million years ago.\n\nDeinonychus was highly specialized for swift movement and savage attack. With its terrible claw flicked forward it slashed its prey with one foot while standing on the other. This kind of behavior required good coordination, excellent eyesight and a high level of energy. By hunting in packs they may have brought down prey much larger than itself.
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ATLANTIC DEVIL RAY\nOrder - Myliobatiformes\nFamily - Mobulidae\nGenus - Mobula\nSpecies - hypostoma\n(i think this is the one u were asking about)\n\n I didnt know which animal u were exactly asking for. so check out the sites below