Coronacollina fossil map
Where fossils of Coronacollina have been found, shown on the Earth as it looked about 555 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 555 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 | 635–538.8 million years ago (Ediacaran) |
| Periods | Ediacaran |
| Named by | Clites et al. 2012 |
| Fossil records | 8 occurrences at 3 locations (PBDB) |
| Found in | Australia |
| Rock formations | Rawnsley Quartzite |
About Coronacollina
Coronacollina acula is an extinct species of multicellular organism from the Ediacaran period resembling the Cambrian 'sponge' Choia. The organism comprised a raised, tri-radially-symmetrical central mound with a central depression and resistant spicules (up to four in articulated fossils), which were resistant — either chitinous or biomineralized — and grew to be 37 cm long. It is currently the oldest known animal with a hard skeleton.
Text in “About” is quoted from the Wikipedia article Coronacollina acula (revision 1375886738), licensed under CC BY-SA 4.0; introduction excerpted verbatim, formatting removed. Ages, family, authority and fossil records: Paleobiology Database, accessed 23 October 2026. Ages are those of the rock layers the fossils were found in. Wikidata: Q384383.
