Green River Fossil Company

Name: Sauropods Period: Triassic-Late Cretaceous (approximately 210 and 66 million years ago) Sauropods (Sauropoda) are an infraorder of sauropodomorph dinosaurs that lived from the Late Triassic to the Late Cretaceous (approximately 210 and 66 million years ago, they lived in the Americas, Asia, Europe, Africa, Oceania and Antarctica. They were herbivorous and they were quadrupedal. Sauropods had very long necks, long tails, small heads (relative to the rest of their body), and four thick, pillar-like legs. They are notable for the enormous sizes attained by some species, and the group includes the largest animals to have ever lived on land. They were The name Sauropoda was coined by Othinel Charles Marsh in 1878, and is derived from Ancient Greek, meaning "lizard foot...

A Stunning Knobby Ammonite Fossil Specimen, About 93 Million Years Old. This is a very beautiful, multicolored (to our eye, taupe-brown, peach, white, tan) ammonite with leafy patter...

Ammonite Fossil Specimen Mortoniceras (Angolaites) Drakei 110 Million Yrs Old (apx) We are wild about these knobby ammonite fossils, especially those with both sides are exposed rath...

Small Majolica sealife platter Vallauris, circa 1950. High relief of fish, seaweeds,starfish. Nautical style. Diameter / 7.5 by 6"  

Conlinoceras Tarrantense Ammonite Fossil, 90-100 Million Years Old. The Conlinoceras Tarrantense Ammonite is considered rare and is highly sought after as a collector's item. Thi...

Polished Ammonite Fossil with Red Flashes, Around 110 Million Years Old, with Beautiful Glowing / Iridescent Flashes of Color and some leafy patterns peaking out. A stand like the on...

Fossil Leaves Natural Specimen from Succor Creek Formation, Owyhee Mountains. Since this is a prehistoric fossil it will show its age (of course!) potentially such as cracks, pits, e...

Fern Fossil Specimen, Extinct Neuropteris species likely, 300 million years old. Discovered in PA. Colors occur naturally over time through the mineralization process. The intensity ...

Conlinoceras Tarrantense Ammonite Fossil, 90 to 100 Million Years Old. A rare and highly sought after ammonite for collectors. The ammonite itself is somewhere between 5 and 6 inch...

Ceramic tile wall art decoration from a cat. Height 94 cm. Width 47 cm. Depth 3 cm.

Alethopteris Species Fern Fossil Natural Specimen, 305+ Million Years Old. This is such a stunning piece that it simply must have a stand. If you like, this stand will be included a...

This outstanding fossilised skeleton is that of the ancestral crocodile species Steneosaurus bollensis that lived during the early Jurassic period. The skeleton, complete with armoured plates, has been exquisitely preserved and recovered from the Holzmaden Oil Shale of south Germany. The crocodile was once buried in fine, muddy sediment 195 million years ago at the bottom of the Tethys Ocean, which once existed between Europe and Africa. The calm, deep water provided a rare anoxic (without oxygen) environment, which prevented the skeleton from any significant decomposition before burial. The mud has since been compressed into oil shale, leaving the immense skeleton completely in-tact. This specimen is one of the few skeletons of Steneosaurus bollensis ever to be discovered. We can deduce much about the life of this reptile from the size and perfect preservation of the piece. Similar to present-day crocodiles, we can see that the two front limbs of the Steneosaurus are much shorter than the back two. This indicates that crocodile ancestors were bipedal; indeed, we believe that crocodiles evolved from the same reptile species as the dinosaurs and airborne pterosaurs. Dinosaurs ruled the lands during the late Triassic and early Jurassic. This made terrestrial life increasingly difficult for ancestral crocodiles, as there were many predators and prey was scarce. However, the seas were rich in fish, shellfish, starfish, crabs, squid… You can even see fossil belemnite guards (bullet shells of squid-like organisms) and the beautiful spiral shells of ammonites preserved around the crocodile skeleton...