Marrella fossil map
Where fossils of Marrella have been found, shown on the Earth as it looked about 500 million years ago and on today’s map.
Dots are fossil collections recorded in the Paleobiology Database. The “then” view moves today’s fossil sites back to their positions 500 million years ago (the time slice nearest the median age of the fossils) using the Merdith et al. (2021) plate model; positions are approximate. Open on the timeline map →

| Group | Ediacaran & Cambrian life |
|---|---|
| Lived | 514.5–497 million years ago (Stage 4 to Guzhangian) |
| Periods | Cambrian |
| Named by | Walcott 1912 |
| Fossil records | 31 occurrences at 6 locations (PBDB) |
| Found in | Canada, China |
| Rock formations | Burgess Shale, Kaili, Stephen, Balang |
About Marrella
Marrella is an extinct genus of marrellomorph arthropod known from the Middle Cambrian of North America and Asia. It is the most common animal represented in the Burgess Shale of British Columbia, Canada, with tens of thousands of specimens collected. Much rarer remains are also known from deposits in China.
Text in “About” is quoted from the Wikipedia article Marrella (revision 1381339665), licensed under CC BY-SA 4.0; introduction excerpted verbatim, formatting removed. Ages, family, authority and fossil records: Paleobiology Database, accessed 22 October 2026. Ages are those of the rock layers the fossils were found in.