exquisite sand-dollar shell fossil

sand-dollar shell fossil - the most beautiful intricate details; notice the similarities to the sea turtle shell

Helicoprion is a long-lived genus of extinct, eugeneodontid holocephalid fish. Almost all fossil specimens are of spirally arranged clusters of the individuals' teeth, called "tooth whorls." This fossilized jaw shows the spiral dentures.

Ammonite from the Caucasus Mountains

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

owl snuggles

Indian Woman with Owl . Blind River, Ontario, Canada -- I've always wondered what she was thinking, considering that the owl is not alive, or could have been sick. For some tribes the owl is a symbol of death -- a taboo to behold.

Angel clouds

Angel wing clouds ~ WOW if you use your imagination it DOES look like angels flying around!

Helioceras

Love these kind of things: Helioceras heteromorph ammonite model extinct fossil - the soft parts are hypothetical, and may have been much more cool or colorful.

Ancient amber with a baby snake

pearl-nautilus:Ancient Amber - baby snake - 50 million years old / Mineral Friends

Nerve bundle cross section: Axons (orange) are wrapped in myelin (purple).

A cross section of a bundle of nerve fibers. Axons (orange) are wrapped in myelin (purple); an extension of the membrane of glial cells. Myelin has high lipid content, and acts to insulate the axons, causing them to transmit nerve impulses much faster.

Ammonite pavement in Lyme Regis, Dorset, Great Britain - a World Heritage site

Ammonite pavement in Lyme Regis, Dorset, Great Britain - a World Heritage Site. We went fossil hunting at Lyme Regis as kids! I took my husband a few years ago and we only found one fossil! I don't think he believed we used to find loads.

Kronosaurus fossil.  Can you even imagine what this looked like when it was swimming through the ocean?

Kronosaurus meaning "lizard of Kronos" is an extinct genus of short-necked pliosaur. It was among the largest pliosaurs, and is named after the leader of the Greek Titans, Cronus.

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