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St. Clair, PA fossil ferns– Llewellyn formation | Flickr - Photo Sharing!

Late Pennsylvanian geologic period fossil ferns roughly 300 million years old.

Perfectly preserved for more than 300 million years, this horsetail carries secrets from the Carboniferous period. Primitive vascular plants, horsetails (genus Equisetum) are often found in coal deposits

10 Weirdest Fossils

Perfectly preserved for more than 300 million years, a horsetail carries secrets from the Carboniferous period. Primitive vascular plants, horsetails (genus Equisetum) are often found in coal deposits.

fossil shark teetj | NJ Fossil Shark Teeth | Flickr - Photo Sharing!

fossil shark teetj | NJ Fossil Shark Teeth | Flickr - Photo Sharing!

Fossil Bee. Colorado Florissant Fossil Beds. Lived in Oligocere, about 35 million years ago.

Fossil Bee, about 35 million years ago / Colorado Florissant Fossil Beds / lived in Oligocere

Hippocampus ramulosus Fossil Seahorse  Pliocene  Marecchia River Formation, Italy  Fossil from Fossil Mall

Hippocampus ramulosus Fossil Seahorse Pliocene Marecchia River Formation, Italy Fossil from Fossil Mall

Ammonite from the Caucasus Mountains

ammonite steinkern specimen, replaced with silica I would say, from the clarity of the replacement mineral.

fósiles de mataraya (Asterotrygon maloneyi) durante el apareamiento

Las mejores imágenes del mar y los océanos están aquí

Lost World Locked In Stone At Fossil Lake This fossil immortalizes stingray sex of the Eocene. The male and female fat-tailed stingrays (Asterotrygon maloneyi) shown here were likely mating or just about to mate when they were killed, researchers believe.

Crinoid fossils are sea lilies and feather stars that attached to the sea bottom, filtered food particles, and boomed in the Paleozoic period when plants dominated the earth. Most of the coal deposits found in the world today are found in association to Pyrite (decomposing plant and animal life + oxidation) due to high quartz and sulfur levels of 60% or more. Crinoids are found in Limestone.

Crinoid fossils are sea lilies and feather stars that attached to the sea bottom, filtered food particles, and boomed in the Paleozoic period when plants dominated the earth. Most of the coal deposits found in the world today are found in association to P

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