Skip to content

Green River Formation Fossils

Shop Now
Juvenile Ichthyosaur fossil from Holzmaden Germany, Jurassic aged ancient sea life.

Museum Quality Specimens

Shop Now

Natural Wall Decor

Shop Now

Crystals & Mineral Specimens

Shop the highest quality gems and minerals from mining claims around the world
Shop Now
Digital Gift Cards

$5 - $500

Give Us A Call

+1 (307) 723-0969

Chat With Us

We offer 24-hour chat support

Visit Us

Directions to our gallery

Russian Cave Lion (Panthera spelaea) Skull | Russia

Russian Cave Lion (Panthera spelaea) Skull | Russia

$95,000.00 - $95,000.00
$95,000.00
$95,000.00 - $95,000.00
$95,000.00
View full details
Shop Fossil Fish
Shop Dinosaur
Shop Petrified Wood
Shop Trilobites
View All
View All

New In Stock

  • $249.00 - $249.00
    $249.00
    $249.00 - $249.00
    $249.00

    Diplomystus and Double Knightia | 100% Natural | Green River Formation | Wyoming

    In Stone Fossils

    Diplomystus unrestored specimen 100% Natural  Knightia unrestored specimen 100% Natural Eocene (51.98 Million Years Ago)  Green River Formation, Wy...

    View full details
    $249.00 - $249.00
    $249.00
    $249.00 - $249.00
    $249.00
  • $64.00 - $64.00
    $64.00
    $64.00 - $64.00
    $64.00

    Double Knightia eocaena | 100% Natural | Green River Formation | Wyoming

    In Stone Fossils

    Knightia fossil found from our private quarry with beautiful reddish-gold toned iron mineral replacement of which our quarry is prized for. This be...

    View full details
    $64.00 - $64.00
    $64.00
    $64.00 - $64.00
    $64.00
  • $39.00 - $39.00
    $39.00
    $39.00 - $39.00
    $39.00

    3.75" Knightia eocaena | 100% Natural | Green River Formation | Wyoming

    In Stone Fossils

    Knightia fossil found from our private quarry with beautiful reddish-gold toned iron mineral replacement of which our quarry is prized for. This be...

    View full details
    $39.00 - $39.00
    $39.00
    $39.00 - $39.00
    $39.00
  • $39.00 - $39.00
    $39.00
    $39.00 - $39.00
    $39.00

    4.5" Knightia eocaena | 100% Natural | Green River Formation | Wyoming

    In Stone Fossils

    Knightia fossil found from our private quarry with beautiful reddish-gold toned iron mineral replacement of which our quarry is prized for. This be...

    View full details
    $39.00 - $39.00
    $39.00
    $39.00 - $39.00
    $39.00
  • $59.00 - $59.00
    $59.00
    $59.00 - $59.00
    $59.00

    6" Diplomystus dentatus | 100% Natural | Green River Formation | Wyoming

    In Stone Fossils

    Diplomystus unrestored specimen 100% Natural  Eocene (51.98 Million Years Ago)  Green River Formation, Wyoming, USA  In Stone Fossils Private Quarr...

    View full details
    $59.00 - $59.00
    $59.00
    $59.00 - $59.00
    $59.00
  • $59.00 - $59.00
    $59.00
    $59.00 - $59.00
    $59.00

    6.25" Diplomystus dentatus | 100% Natural | Green River Formation | Wyoming

    In Stone Fossils

    Diplomystus unrestored specimen 100% Natural  Eocene (51.98 Million Years Ago)  Green River Formation, Wyoming, USA  In Stone Fossils Private Quarr...

    View full details
    $59.00 - $59.00
    $59.00
    $59.00 - $59.00
    $59.00
  • $9,500.00 - $9,500.00
    $9,500.00
    $9,500.00 - $9,500.00
    $9,500.00

    Hadrosaur Tibia (Shin Bone) w/ Metal Stand | Cretaceous | Hell Creek Formation, Montana

    In Stone Fossils

    Hadrosaur Tibia (Shin Bone) Cretaceous (68 - 66 million years ago) Private Ranch, Hell Creek Formation, Montana   Specimen size: approximately 39" ...

    View full details
    $9,500.00 - $9,500.00
    $9,500.00
    $9,500.00 - $9,500.00
    $9,500.00
  • $15,000.00 - $15,000.00
    $15,000.00
    $15,000.00 - $15,000.00
    $15,000.00

    Triceratops Femur w/ Metal Stand | Cretaceous | Hell Creek Formation, Montana

    In Stone Fossils

    Triceratops horridus Cretaceous (68 - 66 million years ago) Private Ranch, Hell Creek Formation, Montana   Specimen size: approximately 40" x 13" x...

    View full details
    $15,000.00 - $15,000.00
    $15,000.00
    $15,000.00 - $15,000.00
    $15,000.00
  • $15.00 - $15.00
    $15.00
    $15.00 - $15.00
    $15.00

    Cretaceous Triceratops Tooth | Montana

    In Stone Fossils

    Carbon County, Montana, U.S.A.  Upper Cretaceous  66 Million Years Ago  Specimen size: approximately 1.5cm  Triceratops tooth comes with an informa...

    View full details
    $15.00 - $15.00
    $15.00
    $15.00 - $15.00
    $15.00
  • $15.00 - $15.00
    $15.00
    $15.00 - $15.00
    $15.00

    Cretaceous Triceratops Tooth | Montana

    In Stone Fossils

    Carbon County, Montana, U.S.A.  Upper Cretaceous  66 Million Years Ago  Specimen size: approximately 0.5" Triceratops tooth comes with an informati...

    View full details
    $15.00 - $15.00
    $15.00
    $15.00 - $15.00
    $15.00
  • $15.00 - $15.00
    $15.00
    $15.00 - $15.00
    $15.00

    Cretaceous Triceratops Tooth | Montana

    In Stone Fossils

    Carbon County, Montana, U.S.A.  Upper Cretaceous  66 Million Years Ago  Specimen size: approximately 0.5" Triceratops tooth comes with an informati...

    View full details
    $15.00 - $15.00
    $15.00
    $15.00 - $15.00
    $15.00
  • $15.00 - $15.00
    $15.00
    $15.00 - $15.00
    $15.00

    Cretaceous Triceratops Tooth | Montana

    In Stone Fossils

    Carbon County, Montana, U.S.A.  Upper Cretaceous  66 Million Years Ago  Specimen size: approximately 1cm  Triceratops tooth comes with an informati...

    View full details
    $15.00 - $15.00
    $15.00
    $15.00 - $15.00
    $15.00
  • $15.00 - $15.00
    $15.00
    $15.00 - $15.00
    $15.00

    Cretaceous Triceratops Tooth | Montana

    In Stone Fossils

    Carbon County, Montana, U.S.A.  Upper Cretaceous  66 Million Years Ago  Specimen size: approximately 1cm  Triceratops tooth comes with an informati...

    View full details
    $15.00 - $15.00
    $15.00
    $15.00 - $15.00
    $15.00
  • $49.00 - $49.00
    $49.00
    $49.00 - $49.00
    $49.00

    5" Knightia eocaena 100% Natural | Green River Formation | Wyoming

    In Stone Fossils

    Knightia fossil found from our private quarry with beautiful reddish-gold toned iron mineral replacement of which our quarry is prized for. This be...

    View full details
    $49.00 - $49.00
    $49.00
    $49.00 - $49.00
    $49.00
  • $35.00 - $35.00
    $35.00
    $35.00 - $35.00
    $35.00

    4" Knightia eocaena 100% Natural | Green River Formation | Wyoming

    In Stone Fossils

    Knightia fossil found from our private quarry with beautiful reddish-gold toned iron mineral replacement of which our quarry is prized for. This be...

    View full details
    $35.00 - $35.00
    $35.00
    $35.00 - $35.00
    $35.00
  • $29.00 - $29.00
    $29.00
    $29.00 - $29.00
    $29.00

    3.5" Diplomystus dentatus | 100% Natural | Green River Formation | Wyoming

    In Stone Fossils

    Diplomystus unrestored specimen 100% Natural  Eocene (51.98 Million Years Ago)  Green River Formation, Wyoming, USA  In Stone Fossils Private Quarr...

    View full details
    $29.00 - $29.00
    $29.00
    $29.00 - $29.00
    $29.00
  • $315.00 - $315.00
    $315.00
    $315.00 - $315.00
    $315.00

    Multiple Ophiuroidea Brittle Stars | Morocco

    In Stone Fossils

    Ophiuroidea Brittle Stars Upper Ordovician El Kaid Errami Valley Tafilalt, Morocco   Specimen approx. size: 1.25" x 1.25", 1.5" x 1", 1" x 1", 1.5"...

    View full details
    $315.00 - $315.00
    $315.00
    $315.00 - $315.00
    $315.00
  • $5.00 - $5.00
    $5.00
    $5.00 - $5.00
    $5.00

    Campo del Cielo Meteorite on card

    In Stone Fossils

    Receive ONE, random hand selected meteorite attached to a card.  Each one is hand selected for quality and each piece is unique. Meteorite approx. ...

    View full details
    $5.00 - $5.00
    $5.00
    $5.00 - $5.00
    $5.00
  • Save 20% Save %
    $35.00
    $35.00 - $35.00
    $35.00
    $28.00
    $28.00 - $28.00
    $28.00

    Equicalastrobus Petrified Pine Cone

    In Stone Fossils

    Specimen size: approx 2.25"  Equicalastrobus Petrified Pine Cones are from the Western Sahara of Morocco. Great detail & preservation with the ...

    View full details
    $35.00
    $35.00 - $35.00
    $35.00
    $28.00
    $28.00 - $28.00
    $28.00
    Save 20% Save %
  • $99.00 - $99.00
    $99.00
    $99.00 - $99.00
    $99.00

    Double Ophiuroidea Brittle Stars | Morocco

    In Stone Fossils

    Ophiuroidea Brittle Stars Upper Ordovician El Kaid Errami Valley Tafilalt, Morocco   Specimen approx. size: 1.5" x 1.25" & 1.25" x 1.25" Matrix...

    View full details
    $99.00 - $99.00
    $99.00
    $99.00 - $99.00
    $99.00
  • $49.00 - $49.00
    $49.00
    $49.00 - $49.00
    $49.00

    Ophiuroidea Brittle Star | Morocco

    In Stone Fossils

    Ophiuroidea Brittle Star Upper Ordovician El Kaid Errami Valley Tafilalt, Morocco   Specimen approx. size: 1.5" x 1.5" Matrix approx. size: 4" x 3....

    View full details
    $49.00 - $49.00
    $49.00
    $49.00 - $49.00
    $49.00
  • $49.00 - $49.00
    $49.00
    $49.00 - $49.00
    $49.00

    Ophiuroidea Brittle Star | Morocco

    In Stone Fossils

    Ophiuroidea Brittle Star Upper Ordovician El Kaid Errami Valley Tafilalt, Morocco   Specimen approx. size: 1.5" x 1" Matrix approx. size: 2.25" x 2...

    View full details
    $49.00 - $49.00
    $49.00
    $49.00 - $49.00
    $49.00
  • $19,000.00 - $19,000.00
    $19,000.00
    $19,000.00 - $19,000.00
    $19,000.00

    Armored Lizard Skull (Peltosaurus sp.) | South Dakota

    In Stone Fossils

    Peltosaurus sp. Oligocene Brule Formation  Pennington County, South Dakota    Specimen approx. dimensions: 3" x 1.5" x 1" Matrix approx. dimensions...

    View full details
    $19,000.00 - $19,000.00
    $19,000.00
    $19,000.00 - $19,000.00
    $19,000.00
  • $500.00 - $500.00
    $500.00
    $500.00 - $500.00
    $500.00

    Ichthyosaurus Vertebrae | England

    In Stone Fossils

    Ichthyosaurus sp. Lower Jurassic, Upper Lias (180 MYO) Sandsend, Whitby, North Yorkshire, England   Approx. size: 9" x 4.75" x 4.75"   Ichthyosaurs...

    View full details
    $500.00 - $500.00
    $500.00
    $500.00 - $500.00
    $500.00
  • $300.00 - $300.00
    $300.00
    $300.00 - $300.00
    $300.00

    Partial Ichthyosaurus Paddle | England

    In Stone Fossils

    Ichthyosaurus sp. Lower Jurassic, Upper Lias (180 MYO) Sandsend, Whitby, North Yorkshire, England   Approx. size: 5" x 3.25" x 1.75"   Ichthyosaurs...

    View full details
    $300.00 - $300.00
    $300.00
    $300.00 - $300.00
    $300.00
Newest Items
  • Fossil Preparation Tools See more
  • $19.00 - $45.00
    $19.00 - $45.00
    $19.00 - $45.00
    $19.00

    Prepare Your Own Fossil Fish

    In Stone Fossils

    Our instagram followers love to watch us prepare these specimens, and how satisfying and relaxing it is to remove the matrix away from the fossil. ...

    View full details
    $19.00 - $45.00
    $19.00 - $45.00
    $19.00 - $45.00
    $19.00
  • Sold out
    $159.99 - $159.99
    $159.99
    $159.99 - $159.99
    $159.99

    Fossil Preparation Air Scribe

    In Stone Fossils

    Prepare your own fossils like the pro's! We've collaborated with Fossil Shack to bring you high quality tools for your fossil preparation needs. Af...

    View full details
    $159.99 - $159.99
    $159.99
    $159.99 - $159.99
    $159.99
    Sold out
  • Save 40% Save %
    $495.00
    $495.00 - $495.00
    $495.00
    $295.00
    $295.00 - $295.00
    $295.00

    Fossil Block - LIMITED RUN Authentic 12" x 12" Fossil Pay Load

    In Stone Fossils

    If you couldn't visit the quarry this year... we'll just SHIP IT TO YOU! Only THIRTEEN available 12" x 12" x 3" (approximate sizes) blocks of Fossi...

    View full details
    $495.00
    $495.00 - $495.00
    $495.00
    $295.00
    $295.00 - $295.00
    $295.00
    Save 40% Save %
  • $24.99 - $24.99
    $24.99
    $24.99 - $24.99
    $24.99

    Starbond Adhesive | Fix Fossil Breaks and Fractures | Quick Drying

    In Stone Fossils

    Need to fix a fossil? Use what we use: Starbond Adhesives. Thick glue to fill gaps and adhere large rock, thin glue to repair fractures and splits,...

    View full details
    $24.99 - $24.99
    $24.99
    $24.99 - $24.99
    $24.99

Testimonials

BRILLIANT! AMAZING! amazing too stellar customer service !!! love my ancient fossils!

Thank you In Stone Fossils!

Brianna Uriostegui

Placed online order. Fast shipping, great communication, great price, and best of all great product! Very happy with order! Highly recommend them!

Kevin Pete

Found this site while searching for Green River formation fossils. I bought 25 of what was said to be partial fish. Some of them were very good examples of partial fossil fish but about 10 of them were complete fish and very good quality. Some were a little light in details but still and EXCEPTIONAL VALUE, great customer care and service and fast shipping with well packed fossils. HIGHLY RECOMMENDED.

Phillip Dudziak

I was looking for a unique gift and found the perfect thing at In Stone Fossils. The fossil arrived, just as pictured, packaged beautifully. From purchase on Sunday afternoon, the package arrived on Wednesday! I am very satisfied and am looking forward to doing some more shopping with them!

Holly Pimpinelli

Great little fossil store. Museum quality pieces. Vast price range. Stuff for a couple bucks to $45,000. Did I mention Museum quality?

Joseph Spivey

Love it!! I ordered a spino tooth for my brothers birthday and he was super overhelmed. I got a very sweet handwritten card and even a gift! Super sweet people giving super cool quality fossils! I live in Norway, it literally traveled around the world and the package was still in perfect condition. I can recommend in every way and i will definitely order other things!! ❤️❤️❤️

Zsófia Márton

Search

Use this section to help customers find the products they're looking for.