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Dinosgacha

Invertebrate

Wiwaxia

Wiwaxia corrugata carried a covering of small protective sclerites and long spines.

Wiwaxia corrugata carried a covering of small protective sclerites and long spines. Its low, soft-bodied form gives it a silhouette unlike a trilobite or a sea scorpion.

Wiwaxia at a glance

Diet
Diet uncertain
When it lived
Cambrian
Group
Bilateria
Bilaterian animals

Beyond the game

The real Wiwaxia

Wiwaxia corrugata carried a covering of small protective sclerites and long spines. Its low, soft-bodied form gives it a silhouette unlike a trilobite or a sea scorpion.

The arrangement of its protective elements is more secure than every detail of its relationship to living groups. Its debated affinities remain an important part of its scientific story.

Fossil discoveries

Northwest Territories, Canada · approximate locationUtah, United States · approximate locationBritish Columbia, Canada · approximate locationAlberta, Canada · approximate location
Northwest Territories, CanadaUtah, United StatesBritish Columbia, CanadaAlberta, Canada

Selected fossil records · present-day map

Map references

Paleobiology Database · N. J. Butterfield. 1994. Burgess Shale-type fossils from a Lower Cambrian shallow-shelf sequence in northwestern Canada. Nature 369(9):477-479 ↗

Paleobiology Database · D. E. G. Briggs and R. A. Robison. 1984. Exceptionally preserved nontrilobite arthropods and Anomalocaris from the Middle Cambrian of Utah. University of Kansas Paleontological Contributions 111:1-23 ↗

Paleobiology Database · J.-B. Caron and D. A. Jackson. 2008. Paleoecology of the Greater Phyllopod Bed community, Burgess Shale. Palaeogeography, Palaeoclimatology, Palaeoecology 258:222-256 ↗

Paleobiology Database · G. Mussini, Y. P. Veenma, and N. J. Butterfield. 2025. A peritidal Burgess‐Shale‐type fauna from the middle Cambrian of western Canada. Palaeontology 68(1):e70001 ↗

Map: Natural Earth, public domain. Fossil records: Paleobiology Database and linked collections and publications.

Sources & text credits

Explore the references behind this profile.

  1. Royal Ontario Museum Burgess Shale — Wiwaxia corrugata

Original English Dinosgacha educational summaries informed by the linked scientific and museum references; source publications retain their own rights.

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