Is there a website for fossil identification?
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It would really help if you knew where he had found it, fossil assemblages vary from country to country, and even locally. If you know where it is from try contacting the local museum or geology department of the university in that area.
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A nice Eurypterid fossil would make a great addition to any serious rock, mineral and fossil collector. A complete fossil is a rare comeby.\n\nNew York State is a Eurypterid hothouse, in fact, it is our state fossil, here is a site that carries some very fine specimens....\n\nhttp://www.langsfossils.com/eurypterids.htm
725060
Whoa! slow down, there is fossil evidence a transition from reptiles and birds. Most famously Archeopteryx with reptilian skull, teeth, digits, claws, vertebrae, sternum, ribs, pelvis, tail, and mainly unfused bones, and a few bird traits like a wishbone, wings and feathers!! In older sediments, there are theropod dinosaurs with skeletal similarities to Archeopteryx. In younger sediments, there are several fossils with more birds-like traits, such as Sinornis and Shenzhouraptor and dozens more (wikipedia "fossil birds").\n\nFossils of scales and feathers are very very rarely preserved. Imprints of the Archeopteryx feathers are only preserved because the fossils are embedded in very rare, very fine limestone that used to be used in lithography. It is unreasonable to demand fossil evidence of a transition between scales and feathers. That said, there are several theropod fossils with feathers that have been recently discovered in a fine Chinese deposit, things like Sinosauropteryx, Caudipteryx and Beipiaosaurus.\n\nBut sure, every detail of the the transition from reptiles to birds isn't documented. Other than demanding an excessive amount of evidence, I really don't know what arguments you can use, I don't think there are any true ones. But you might find some convincing sounding ones on Creationist propaganda websites. It depends on your audience.
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The University of Michigan's Animal Diversity Web (ADW) http://animaldiversity.ummz.umich.edu/site/index.html is an excellent online database of animal history, distribution, classification and conservation biology.
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http://www.palaeos.com/Paleozoic/Paleozoic.htm\n\nshould help :O)
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Scientists look for a great many things.\n\nScientists want to know what the Earth used to be like.  They look at fossils, among other things, to find out.\n\nPretty much every aspect of fossils is examined.  Given any on fossils, scientists will be trying to determine:\n\n* How the individual lived.\n* How it died.\n* What died with it.\n* What it says about the larger world.\n\nFor instance, scientists know that some Sauropod dinosaurs (ones like Brontosaurus) lived in herds because they frequently trampled on each other's tails.  Sauropod tails have large numbers of these minor injuries, suggesting such tail damage was common.\n\nA single fossil will be examined for bone damage to see what killed it.  Sometimes, they can identify the species of animal that attacked the the fossil.  They also look for traces of scavengers afterwards, and even decay processes!\n\nFossils of animal dung are examined to see what was being eaten.  These are called coprolites.\n\nFossils of "supersized" insects in the ancient past tell us that the oxygen in the atmosphere used to be much higher.  Today, an insect that large would suffocate.\n\nEvery aspect of a fossil is examined.  How big it was, how fast it grew (from growth lines), everything.\n\nIt's a detective story!  Come help us figure it all out!
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www.geology.com\n\nSeriously...\nGo there.
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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 is one of the most detailed ones available on the internet from the Geological Society of America:\nhttp://www.geosociety.org/science/timescale/timescl.pdf\n\nUSGS has some interesting versions that are put in scale relative to time, so they show dramatically how much longer previous Eons were in comparison to recent Eras:\nhttp://geology.wr.usgs.gov/docs/parks/gtime/gtime2.html\n\nHere is the UC Berkeley Geological Time Machine:\nhttp://www.ucmp.berkeley.edu/help/timeform.html\n\nFinally, if you want to see the coolest images of paleogeography on the net check out Dr Blakey's website at Northern Arizona University:\nhttp://jan.ucc.nau.edu/~rcb7/nam.html\nor at:\nhttp://jan.ucc.nau.edu/~rcb7/
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An Evolutionary History based on Comparative Anatomy and fossil Sequences
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Many stores carry them, for example the Nature Company has a fine selection (if it is indeed still in business).  Stores that carry rock and mineral specimens may carry fossils, and some museums (especially natural history) may have them in the gift shops.  (I would try museum gift shops first, try calling museum shops in your area and asking.)  You can also try Ebay, (but it's usually best to purchase your fossils in person, since you can see your specimen.)  If you do choose to try Ebay, you can get to fossils by choosing "collectibles," "rocks, fossils, and minerals," and the subcategory "fossils."  Be careful that you're not purchasing "authentic replicas" though, those are just fancy words for "fake."  \n\nIf you are asking about purchasing the more rare and expensive pieces, I purchase mine at rock and gem shows, try seeing if there are any in your area.
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http://www.paleoportal.org/time_space/state.php?name=Alaska
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this should get you started: http://animal.discovery.com/
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It's the study of fossils.
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There are some great progressive displays of the shared characteristics of certain dinos and modern-day birds.  You should check it out at a museum of natural history, or even online.
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you could try the site listed below.
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http://www.infothis.com/find/Hallucigenia/ (same as above, only with the source)\nHere's what it looks like:\nhttp://www.nmnh.si.edu/paleo/images/fhallu.gif\n\nHere are possible reconstructions:\nhttp://gsc.nrcan.gc.ca/paleochron/09_e.php\nhttp://evolution.berkeley.edu/evolibrary/article/0_0_0/cambrian_14\n\nI recommend you Stephen Jay Gould's book "Wonderful life" for a detailed and also entertaining account of Burgess Shale fossils.