ammonites (fossils) - loved collecting fossils like these as a child with my dad on family holidays by the sea

ammonites (fossils) - loved collecting fossils like these as a child with my dad on family holidays by the sea Mais

I like really old shells too - like 40 or 50 millions years old. I have several nice amonites. -CAB

Ammonite Fossils - The Promicroceras Planicosta on display at the Smithsonian Museum of Natural History - Washington D.

UK fossils including British ammonites - Fossils Direct

UK Fossils for sale including ammonites - Fossils Direct. Fossils for sale, high quality British fossils in our on-line fossil shop, from one of the UK's leading fossil dealers.

Seed fern (Neuropteris heterophylla)  Credit: NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY

Seed fern (Neuropteris heterophylla) Credit: NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY

Crinoid fossils. Rock containing crinoid (or sea lily) fossils. These are Scyphocrinus elegans crinoids from the Silurian/Devonian period (about 440-360 million years ago). Crinoids are marine echinoderms that appear as early as the Ordovician period (500 million years ago). These crinoids have stalks by which they would attach themselves to the seabed, capturing food with feathery arms that formed a cup (seen at lower right and upper centre). Thousands of extinct crinoid species have been…

Rock containing crinoid (or sea lily) fossils. These are Scyphocrinus elegans crinoids are marine echinoderms.

Fish fossils buried suddenly and encapsulated in stone as evidence of this catastrophe.

Some of the world's best preserved fossils are found in the flat-topped ridges of southwestern Wyoming's cold sagebrush desert. Fossil Butte National Monument is a site that promotes the protection of this world-class paleontological heritage.

An armoured jawless fish (a Cephalaspis, which is a kind of osteostracan). This creature evolved as it adapted to the transition from open sea to freshwater conditions in the Ludlow area towards the end of the Silurian. It had not evolved at the time the rocks beneath Whitcliffe were laid down, but fossils of the animal have been found in the younger rocks just to the east, downstream of Ludford Bridge.

An armoured jawless fish (a Cephalaspis, which is a kind of osteostracan). This creature evolved as it adapted to the transition from open sea to freshwater conditions in the Ludlow area towards the end of the Silurian.

wasbella102:  Ammonite pavement in Lyme Regis, Dorset, Great Britain - a World Heritage site Not far from me. wb102

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.

Trilobite fossil. Over 17,000 known species roamed the oceans for over 270 million years. From around 500 m years ago.

was designated the state fossil of Pennsylvania in Trilobite fossil. Over known species roamed the oceans for over 270 million years.

When Trilobites Ruled the World

When Trilobites Ruled the World

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