Can anyone help me to identify these fossils and definitions?
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1. F-Brachiopod \n2. A-Gastropod \n3. G-Cephalopod\n4. E-Bryozoan (I love bryozoans! Particularly phylactolaemata!)\n5. D-Crinoid \n6. B-Horn Coral \n7. C-Trilobite (These too!)
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Diadectomorpha\nAnthracosauria\nTherapsida\nCacops\nLysorophia\nDissorophoidea\nEdaphosaurus\nDissorphidae\nLabyrinthodontia\nDiadectes\nBatrachosauria\nPelycosaur\nDicynodont\nEureptilia\nThecodont\nSphenacodontidae\nLepospondyli\nLystrosaurus\nEdaphosauridae\nAïstopoda\nReptiliomorpha\nTemnospondyli\nPareiasaur\nLethiscus\nDiadectidae\nArchosauromorpha\nDinocephalia\nArchosauriformes\nAcanthodii\nArchosaur\nEryops\nTetrapod\nBradysaurus
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look here http://www.rocksandminerals.adventuresinodyssey.be/
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http://images.google.com/images?sourceid=navclient-ff&ie=UTF-8&rls=GGGL,GGGL:2005-09,GGGL:en&q=biogeographical+maps
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These were Mesozoic marine reptiles. They lived during the Triassic, Jurassic, and into the middle and Late Cretaceous.\n\nHere is an authoritative site that describes the taxonomy, gives physical characteristics, environmental adaptations, and shows some photos. \n http://www.palaeos.com/Vertebrates/Units/210Eureptilia/300.html
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Microfossils are microscopic fossils that cannot be seen with the unaided eye. Macrofossils, on the other hand, would be large enough to be seen.\n\nMicrofossils include but are not limited to the tests (shells) of tiny microorganisms called diatoms, radiolarians, forams, etc. as well as pollen & spores from plants.\n\nDiatomaceous earth is made up of siliceous tests of of diatoms & is mined & used for abrasives, in toothpaste, in insecticides, etc. Sounds yummy, fossilized microorganisms in our toothpaste!\n\nPlant spores & pollen are particularly useful in finding out the types of plants that lived in the past & how they reproduced. Many times this is the only part of the plants that become fossilized. Most of the plants decompose while the waxy coating on the outer parts of the pollen allows it to be well preserved.
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http://ceratium.ietc.wwu.edu/IWS/Images/Biota/Animalia/Mollusca/Bivalvia/Psammobiidae/Nuttallia/obscurata\nit's on this page
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www.discoveringfossils.co.uk
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Reptiles\nAmphibians\n"mammal-like reptiles" (reptiles who'se outer jaw bones had migrated to become ear bones)\nMammals (in the final dinosaur age, the Jurassic)\nInsects\nArachnids
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sounds like it might be an ammonite fossil.  Depending on the species, size and its condition it could be worth a lot.  I saw some selling at the Nature Company for a lot of money.  Contact local university esp if they have a museum. You want to ask for a Malacologist (expert on Mollusks) someone who is good at IDing this kind of thing.  Ammonites are Cephalopods, relatives of squid and octopus and are NOT snails-Gastropods.
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>>>>>They have never found any.\n\nThere are many transitional fossils.\n\n\nThe only way that the claim of their absence may be remotely justified, aside from ignoring the evidence completely, is to redefine "transitional" as referring to a fossil that is a direct ancestor of one organism and a direct descendant of another. However, direct lineages are not required; they could not be verified even if found. What a transitional fossil is, in keeping with what the theory of evolution predicts, is a fossil that shows a mosaic of features from an older and more recent organism.\n\nTransitional fossils may coexist with gaps. We do not expect to find finely detailed sequences of fossils lasting for millions of years. Nevertheless, we do find several fine gradations of fossils between species and genera, and we find many other sequences between higher taxa that are still very well filled out.\n\nThe following are fossil transitions between species and genera:\n\n   1. Human ancestry. There are many fossils of human ancestors, and the differences between species are so gradual that it is not always clear where to draw the lines between them.\n\n   2. The horns of titanotheres (extinct Cenozoic mammals) appear in progressively larger sizes, from nothing to prominence. Other head and neck features also evolved. These features are adaptations for head-on ramming analogous to sheep behavior (Stanley 1974).\n\n   3. A gradual transitional fossil sequence connects the foraminifera Globigerinoides trilobus and Orbulina universa (Pearson et al. 1997). O. universa, the later fossil, features a spherical test surrounding a "Globigerinoides-like" shell, showing that a feature was added, not lost. The evidence is seen in all major tropical ocean basins. Several intermediate morphospecies connect the two species, as may be seen in the figure included in Lindsay (1997).\n\n   4. The fossil record shows transitions between species of Phacops (a trilobite; Phacops rana is the Pennsylvania state fossil; Eldredge 1972; 1974; Strapple 1978).\n\n   5. Planktonic forminifera (Malmgren et al. 1984). This is an example of punctuated gradualism. A ten-million-year foraminifera fossil record shows long periods of stasis and other periods of relatively rapid but still gradual morphologic change.\n\n   6. Fossils of the diatom Rhizosolenia are very common (they are mined as diatomaceous earth), and they show a continuous record of almost two million years which includes a record of a speciation event (Miller 1999, 44-45).\n\n   7. Lake Turkana mollusc species (Lewin 1981).\n\n   8. Cenozoic marine ostracodes (Cronin 1985).\n\n   9. The Eocene primate genus Cantius (Gingerich 1976, 1980, 1983).\n\n  10. Scallops of the genus Chesapecten show gradual change in one "ear" of their hinge over about 13 million years. The ribs also change (Pojeta and Springer 2001; Ward and Blackwelder 1975).\n\n  11. Gryphaea (coiled oysters) become larger and broader but thinner and flatter during the Early Jurassic (Hallam 1968).
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They aren't "preserved" except in form. They are replaced by minerals, the major exception being calcium carbonate shells of things like oysters and clams (Mollusks), but those are shells and might not be considered "body parts" as they are not the soft tissue. Most fossil bones are replaced with a mineral. Most fossil wood is replaced with minerals, but some actual parts of the wood sometimes remain. Fossil insects imbedded in amber are the real original bug, but probably aren't really a fossil.
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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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Where is Calimecita when you need her!!!\n\nArchaeopteridales\n(Upper Devonian to Mississippian)\nPerhaps one of the most remarkable paleobotanical discoveries is the work done by Charles B. Beck in the 1960s. Through careful and painstaking work, he was able to demonstrate that the fossil wood known as Callixylon and the leaves known as Archaeopteris, shown at left, were actually part of the same plant. This may sound trivial, until one realizes that the fossil record seldom preserves whole organisms intact. \nIn the case of Archaeopteris, the leaves were reminiscent of ferns, and in fact produced and released spores in a manner consistent with this interpretation. As a result, they were considered to be some sort of fossil fern. The wood Callixylon, by contrast, was considered similar to modern conifers, and was placed with the seed plants. When Dr. Beck demonstrated that fossils of Archaeopteris were physically attached to Callixylon wood, it was realised that the plant, now collectively called Archaeopteris, was actually an extinct group of plants unlike any living plants today -- it had both wood and fern-like reproduction. \n\nYes...........I cut and pasted. (Hoping it would all make sense to you!!)
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Hi, Seaford cliffs are chalk/flint; and the geology is from the Cretaceous period. Google 'geology seaford' and see what you come up with!\n\nAlso check http://www.discoveringfossils.co.uk/locationsSE.htm - there's not much detail, but it gives you a little bit of information. Seaford's towards the bottom of the list.\n\nGood luck with your homework!
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Try http://www.geo.lsa.umich.edu/~crlb/COURSES/270/Lec12/Lec12.html\nIt helped me do my homework! Also, it has pictures of plate boundries and plate tectonics. Hope it helps!
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Too long to list:\nhttp://seis.natsci.csulb.edu/bperry/ROCKS.htm\ngood site