M38a46cd451a6f4a38bba1ec5d8d343c5e
Autor/Urheber:
Chip Clark
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2500 x 1305 Pixel (2768974 Bytes)
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Catalog number USNM PAL 57628, a fossilized Pikaia gracilens specimen in a slab of Burgess shale from the Paleobiology collections at the Smithsonian Institution National Museum of Natural History in Washington, D.C.
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