Alabama fossil:

prehistoric whale: Basilosaurus cetoides

Alaska fossil:

woolly mammoth: Mammuthus primigenius

Arizona fossil:

petrified wood: Araucarioxylon arizonicum

California fossil:

sabre-tooth cat: Smilodon fatalis

Colorado dinosaur:

stegosaurus: Stegosaurus stenops

Connecticut fossil:

Eubrontes giganteus dinosaur tracks

Delaware fossil:

Belemnite: Belemnitella americana

Florida fossil:

sea urchin: Eupatagus antillarum

Georgia fossil:

shark tooth Carcharadon megalodon

Hawaii

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Idaho fossil:

hagerman horse fossil: Equus simplicidens

Illinois fossil:

tully monster:
Tullimonstrum gregarium

Indiana

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Iowa

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Kansas

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Kentucky fossil:
Kentucky mineral:

brachiopoda (prehistoric sea shells)
coal (fossil fuel)

Louisiana fossil:

petrified palmwood

Maine fossil:

Pertica quadrifaria (Devonian plant)

Maryland dinosaur:
Maryland fossil shell:

astrodon: Astrodon johnstoni
ecphora gardinere (Miocene gastropod)

Massachusetts dinosaur:

Dinosaur tracks: theropod footprints

Michigan fossil:
Michigan stone:

mastodon
petoskey stone (fossilized coral)

Minnesota fossil:

giant beaver: Casturoides ohioensis

Mississippi fossil:

prehistoric whales:
Eocene Archaeocete cetaceans

Missouri dinosaur:
Missouri fossil:

Hypsibema missouriensis
Crinoid: Delocrinus missouriensis

Montana dinosaur:

Duck-billed dinosaur Maiasaura peeblesorum

Nebraska fossil:

Mammoth

Nevada fossil:

Berlin Ichthyosaur:Shonisaurus popularis

New Hampshire

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New Jersey dinosaur:

Hadrosaur: Hadrosaurus folki

New Mexico fossil:

Coelophysis: Coelophysis bauri

New York fossil:

sea scorpion: Eurypterus remipes

North Carolina

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North Dakota fossil:

Teredo petrified wood

Ohio fossil:

Trilobite: Isotelus maximus

Oklahoma dinosaur:

Saurophaganax Maximus

Oregon:

Metasequoia

Pennsylvania fossil:

Trilobite: Phacops rana

Rhode Island

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South Carolina

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South Dakota dinosaur:

Triceratops: Triceratops prorsus

Tennessee

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Texas dinosaur:
Texas stone:

brachiosaur sauropod
petrified palmwood

Utah fossil:
Utah rock:

Allosaurus: Allosaurus fragilis
coal (fossil fuel)

Vermont

white whale (beluga toothed-whale)

Virginia state fossil:

Chesapecten jeffersonius (Pliocene scallop)

Washington fossil:
Washington gem:

Columbian mammoth
petrified wood

West Virginia fossil:

Coral: Lithostrotianella

Wisconsin fossil:

Trilobite: Calymene celebras

Wyoming dinosaur:
Wyoming fossil:

Triceratops: Triceratops horridus
herring fish: Knightia