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The "Scanish Swift", a fossil Swift from 49 million years ago and the oldest known Swift. (Scaniacypselus szarskii; Apodidae; Mayr & Peters 1999) http://www.swift-conservation.org/PhotoGallery..htm …

The "Scanish Swift", a fossil Swift from 49 million years ago and the oldest known Swift. (Scaniacypselus szarskii; Apodidae; Mayr & Peters 1999) http://www.swift-conservation.org/PhotoGallery..htm …

Chinese fossils reveal that ancient birds had feathers on their legs, prompting some to call them four-winged birds. Some scientists think these wings helped the birds to fly, while others think they were used in courtship.  Science/AAAS/LiveScience

Four-winged birds? Feathery-legged fossils date back to dinosaur days.

Chinese fossils reveal that ancient birds had feathers on their legs, prompting some to call them four-winged birds. Some scientists think these wings helped the birds to fly, while others think they were used in courtship. Science/AAAS/LiveScience

This Bristolia bristolensis (sagittal length: 44mm; total length: 83mm) is one of the most complete and well preserved ever found. It comes from the Lower Cambrian Pioche Formation of western Nevada.

This Bristolia bristolensis (sagittal length: 44mm; total length: 83mm) is one of the most complete and well preserved ever found. It comes from the Lower Cambrian Pioche Formation of western Nevada.

fern fossil | older than you can explain

fern fossil | older than you can explain

Messel Pit is the richest site in the world for understanding the living environment of the Eocene, between 57 million and 36 million years ago. In particular, it provides unique information about the early stages of the evolution of mammals and includes exceptionally well-preserved mammal fossils, ranging from fully articulated skeletons to the contents of stomachs of animals of this period.

Messel Pit is the richest site in the world for understanding the living environment of the Eocene, between 57 million and 36 million years ago. In particular, it provides unique information about the early stages of the evolution of mammals and includes exceptionally well-preserved mammal fossils, ranging from fully articulated skeletons to the contents of stomachs of animals of this period.

A new technique — which can also be used for dinosaurs, one paleontologist said — led to the discovery of key proteins within the old feathers.

This ancient Chinese bird kept its feathers, and colors, for 130 million years

A new technique — which can also be used for dinosaurs, one paleontologist said — led to the discovery of key proteins within the old feathers.

Tartaruga fossile

Tartaruga fossile

Taking a deeper look at 'ancient wing'. The fossil feather and skeleton of the iconic dinosaur Archaeopteryx.

Taking a deeper look at 'ancient wing'. The fossil feather and skeleton of the iconic dinosaur Archaeopteryx.

Unidentified Fossil Bird with Preserved Feathers - Green River Formation - "Fossil Lake" area - southwest Wyoming

Unidentified Fossil Bird with Preserved Feathers - Green River Formation - "Fossil Lake" area - southwest Wyoming

bilduppgift - stämplar eller gnugga eller rita med kladdkrita och sen måla jordlagren

bilduppgift - stämplar eller gnugga eller rita med kladdkrita och sen måla jordlagren

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