Wiwaxia

![Computer reconstruction of juvenile Wiwaxia corrugata individual. Chequers represent 1 mm. Source: Smith (2013)[10]Computer reconstruction of adolescent Wiwaxia corrugata individual. Chequers represent 1 mm.Source: Smith (2013)[10]Computer reconstruction of mature Wiwaxia corrugata individual. Chequers represent 1 mm.Source: Smith (2013)[10]](/uploads/202502/21/Wiwaxia_corrugata_(juvenile)1943.png)
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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 5 cm (2 inch) when fully grown, although a range of juvenile specimens are known, the smallest being 2 millimetres (0.079 in) long.