Archotuba fossil map
Where fossils of Archotuba have been found, shown on the Earth as it looked about 525 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 525 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 | 521–506.5 million years ago (Stage 3 to Stage 4) |
| Periods | Cambrian |
| Named by | Hou et al. 1999 |
| Fossil records | 13 occurrences at 5 locations (PBDB) |
| Found in | China |
| Rock formations | Yu'anshan, Shuijingtuo, Balang |
About Archotuba
Archotuba is a genus of elongated conical tubes that were seemingly deposited by colonial organisms. Known from the Chengjiang, its biological affinity is uncertain; it somewhat resembles the tubes of the 'priapulid' Selkirkia, but a cnidarian affinity is also possible. In the absence of soft parts, there is insufficient data to confirm a biological affiliation.
Text in “About” is quoted from the Wikipedia article Archotuba (revision 1322411112), 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: Q18353846.
