Burgess Shale.pdf - GEA Kring Rijnland
Burgess Shale.pdf - GEA Kring Rijnland
Burgess Shale.pdf - GEA Kring Rijnland
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Ontdekker van de<br />
<strong>Burgess</strong> shale<br />
Charles Walcott,<br />
Smitsonian Institute<br />
(1850-1927)