Grand Canyon Fossil Worm Tracks 3823 - Flickr - Grand Canyon NPS

Autor/Urheber:

NPS photo by Kristen M. Caldon. Grand Canyon National Park

Shortlink:

https://dewiki.de/b/30b813

Quelle:

Wikimedia Commons

Größe:

4288 x 2848 Pixel (4571269 Bytes)

Beschreibung:

Fossil Fucoids (worm tracks) in the Bright Angel Formation

Trace fossils are left behind by the activities of ancient organisms. Burrows are a classic example of a trace fossil. Animals burrowed through the soft sediment at the bottom of the ancient seas. Under the right conditions, these burrows were preserved when they filled in with sediment. The animals are not usually present, but evidence of their behavior or activities is represented in the trace fossil.

Lizenz:

Public domain

Credit:

Grand Canyon_Fossil Worm Tracks_3823

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