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fish, fossil, 'Fish bed': Fish fragments

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A piece of the Ludlow Bone Bed packed with fragments of spines and scales from fossil fish. The Ludlow Bone bed is an internationally famous rock formation discovered in the nineteenth century and yielding the earliest known vertebrate fossils, those of early fish. Fish remains have since been found in slightly older rocks. The horizon represents a period of very slow sedimentation rate on a deltaic or coastal plain. Bone and scale fragments were winnowed out and deposited in this horizon, they appear as the shiny black specs and fragments packed into a brownish or sometime dark grey limestone. The Ludlow Bone bed used to be the marker horizon between the Silurian and the Devonian periods, but the boundary is now considered to fall above this point in geological time.

Details
Accession Number G902
Date 439000000BC - 409000000BC
Period Silurian
Collection Geology
Technique
Creator
Name
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