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…

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…

This is a 47-million year old irridescent jewel beetle fossil from the Messel Pit in Germany.

This is a 47-million year old irridescent jewel beetle fossil from the Messel Pit in Germany.

Fossil remains of the 375 million years old Tiktaalik, the "walking fish". It looks just like all the cartoon shows depicting evolution said it would!

Fossil remains of the 375 million years old Tiktaalik, the "walking fish". It looks just like all the cartoon shows depicting evolution said it would!

"Nest Full of Baby Dinosaurs Found. A 70-million-year-old nest filled with the remains of baby Protoceratops gives clues to the dinos’ early behavior."

"Nest Full of Baby Dinosaurs Found. A 70-million-year-old nest filled with the remains of baby Protoceratops gives clues to the dinos’ early behavior."

Mesophryne beipiaoensis, from the Cretaceous Period from Liaoning Province, China - Credit: Credit: Mick Ellison, AMNH

Photos: The New Amphibian Tree of Life

Mesophryne beipiaoensis, from the Cretaceous Period from Liaoning Province, China - Credit: Credit: Mick Ellison, AMNH

This is a photograph of Sulcavis geeorum, a fossil bird from the Early Cretaceous (120 million-years-ago) of Liaoning Province, China with scale bar in millimeters.  Credit: Photograph by Stephanie Abramowicz

This is a photograph of Sulcavis geeorum, a fossil bird from the Early Cretaceous (120 million-years-ago) of Liaoning Province, China with scale bar in millimeters. Credit: Photograph by Stephanie Abramowicz

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