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Fossil trilobite ampyxina - fossil,
$22.00
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Silicified coral fossil - coral,
$100.00
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Ordovician brittle star - 15",
$1499.99
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Research china paleontology - research,
$93.00
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Eocrinoid - , (ascocystites)
$12.00
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1lb fossil plate - fossil, coral
$14.99
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Rare ordovician isotelus - rare,
$380.00
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Declivolithus ordovician - declivolithus,
$65.00
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Ordovician hash plate - ordovician, plate-
$25.00
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Maclurites gastropod - maclurites, sp.
$15.00
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Trilobite prone - 1, prone-
$24.95
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Multiple fossil jellyfish - fossil,
$200.00
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Canada fossil crinoid - canada,
$49.99
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Maryland geological survey - maryland,
$187.83
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Orthoceras fossils
$16.99
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Ophiura starfish fossil - ophiura, –
$37.00
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Elementary guide fossils - guide,
$19.99
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Trilobite flexicalymene - 1"-,
$22.95
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Bumastus trilobite - 4-bumastus,
$17.99
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Declivolithus trilobite fossil - trilobite,
$139.00
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Ophiura starfish fossil - ophiura,
$38.00
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Long crotalocephalina - long!,
$59.99
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Ordovician conularia fossil - conularia,
$8.00
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Ordovician homotelus - ordovician,
$19.99
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Ordovician graptolite fossil
$107.13
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Ordovician devonian - to,
$46.87
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Illaenus schmidti - cf.,
$350.00
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Aulacera undulata fossil - aulacera,
$134.99
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Mixed silurian ordovician - lb,
$49.99
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Ophiura starfish fossil - ophiura,
$45.00
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Silicified coral fossil - 3.5#,
$175.00
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Subsurface cambrian ordovician - subsurface,
$30.00
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Fossils four sets - fossils,
$55.00
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Ordovician trilobite trace - trilobite,
$75.00
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Geological enterprises - geological,
$49.00
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Ophiura fossil starfish - ophiura,
$27.00
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Declivolithus trilobite fossil - declivolithus,
$65.00
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Ordovician hash plate - ordovician, plate-
$15.00
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Palaeontology volume part - palaeontology, 12,
$20.00
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Large declivolithus titan - large,
$420.00
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Trilobite flexicalymene - 1"-,
$20.95
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Homotelus trilobite fossil - homotelus,
$34.99
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Fossils the upper - fossils,
$49.92
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Geology paleontology 1954 - geology,
$11.99
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Illeanus trilobite - 3.5, cm
$120.00
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Cincinnaticrinus
$35.78
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Homotelus trilobite cluster - ,
$160.00
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Curvy crotalocephalina - curvy,
$78.00
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Trilobite flexicalymene - 0.5"trilobite-,
$35.00
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Fantastic 25 inch - fantastic, 1.25
$60.00
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Fossil crinoid martinsburg - crinoid,
$40.00
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Fossil stromatoporoid - fossil,
$17.50
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Eocrinoid from - eocrinoid, (ascocystites)
$12.00
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Ascocystites eocrinoid fossil - ascocystites,
$13.00
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Ordovician brachiopods eastern - ordovician,
$11.24
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Fossil sponge nodule - sponge,
$12.00
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Rare ormathops trilobite - ormathops,
$55.00
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Fossil trilobite tracks - fossil,
$89.95
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Declivolithus trilobite fossil - declivolithus,
$99.00
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Rare cool proetus trilobite - rare,
$60.00
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Silicified sponge fossil - silicified,
$100.00
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Fossil starfish plate brittle - fossil, "brittle
$549.99
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Homotelus trilobite cluster - ,
$180.00
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Geology paleontology fossil - geology,
$10.79
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Indiana fossil gastropods - indiana,
$3.99
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Rare cool nileus - cool,
$65.00
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Trilobite fossil niobella - fossil,,
$196.90
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Onnia superba trilobite fossil - superba,
$38.00
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Ordovician fossil trilobite - fossil,
$469.00
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Fossil ordovician cephalopod - ordovician,
$41.95
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Cheiruid trilobites - trilobites,
$140.00
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Silicified coral fossil - 01#,
$50.00
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Rare ordovician trilobite - rare,
$59.99
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Antique original ohio geology - antique,
$49.99
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Silicified coral fossil - 4.0#,
$200.00
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Fossil trilobite - 12,
$199.00
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Homotelus trilobite bromide - trilobite,
$100.00
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Fossil crinoids holdfast - crinoids,
$178.00
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Incomplete ophiura starfish - ophiura,
$13.00
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Rare ormathops trilobite - rare,
$59.00
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Homotelus trilobite fossil - homotelus,
$29.99
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Geology paleontology tennessee - geology,
$11.99
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Flexicalymene trilobite - 2",
$18.00
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Silicified coral fossil - 3.9#,
$195.00
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Spiny ordovician illaenid - spiny,
$240.00
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British ordovician calymene - british,
$200.87
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Fossil crinoids holdfast - fossil,
$33.00
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Zonation the middle - zonation, and
$12.99
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Ordovician ophiuroid with - ophiuroid,
$84.99
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Giant fezouata multi - fezouata,
$1166.11
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Silicified coral fossil - .77#,
$39.00
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Bryozoa specimen fossil coral - specimen,
$5.99
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Incomplete declivolithus - incomplete,
$35.00
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Rare cool proetus trilobite - proetus,
$65.00
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Rare fossil furca - fossil,
$1300.00
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Silicified coral fossil - 05#,
$250.00
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Browse 96 ordovician listings currently in our index. Prices range from $3.99 to $1499.99, with an average of $126.49. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about ordovician →
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Whether you are looking for a brand-new or second-hand ordovician, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at $3.99, while premium listings can reach $1499.99 — giving you a wide budget spread to work with. The average price of $126.49 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.