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Ptychagnostus Burgess Shale Trilobite

Burgess Shale Canadaspis perfecta Canadaspis perfecta Phylum Arthropoda, Order Canadaspididae Geological Time: Early Cambrian (~520 million years ago) Size: 16 mm long X 10 mm wide Fossil Site: Burgess Shale, Stephen Formation, Burgess Pass, British Columbia, Canada

Burgess Shale Canadaspis perfecta Canadaspis perfecta Phylum Arthropoda, Order Canadaspididae Geological Time: Early Cambrian (~520 million years ago) Size: 16 mm long X 10 mm wide Fossil Site: Burgess Shale, Stephen Formation, Burgess Pass, British Columbia, Canada

Echmatocrinus brachiatus (part and counterpart) from the Burgess Shale discovered by the Geological Survey of Canada team.

Echmatocrinus brachiatus (part and counterpart) from the Burgess Shale discovered by the Geological Survey of Canada team.

http://www.fossilmall.com/Science/MuseumFossils/Marella/UB268C.jpg

http://www.fossilmall.com/Science/MuseumFossils/Marella/UB268C.jpg

Fossil showing underside of Wiwaxia corrugata from the Burgess Shale.  Wiwaxia is a genus of soft-bodied animals that were covered in carbonaceous scales and spines. Wiwaxia fossils – mainly isolated scales, but sometimes complete, articulated fossils – are known from early Cambrian and middle Cambrian fossil deposits across the globe. The living animal would have measured up to 2 inches when fully grown, although a range of juvenile specimens are known, the smallest being 2 millimetres…

Fossil showing underside of Wiwaxia corrugata from the Burgess Shale. Wiwaxia is a genus of soft-bodied animals that were covered in carbonaceous scales and spines. Wiwaxia fossils – mainly isolated scales, but sometimes complete, articulated fossils – are known from early Cambrian and middle Cambrian fossil deposits across the globe. The living animal would have measured up to 2 inches when fully grown, although a range of juvenile specimens are known, the smallest being 2 millimetres…

Hallucigenia sparsa fossil: from the Burgess Shale

Hallucigenia sparsa fossil: from the Burgess Shale

http://burgess-shale.rom.on.ca/images/history/discoveries/history_discoveries_rom_30.jpg

http://burgess-shale.rom.on.ca/images/history/discoveries/history_discoveries_rom_30.jpg

Naraoia compacta. © SMITHSONIAN INSTITUTION - NATIONAL MUSEUM OF NATURAL HISTORY. PHOTO: JEAN-BERNARD CARON.

Naraoia compacta. © SMITHSONIAN INSTITUTION - NATIONAL MUSEUM OF NATURAL HISTORY. PHOTO: JEAN-BERNARD CARON.

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