Archotuba

Archotuba conoidalis Temporal range: Cambrian PreЄ Є O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	incertae sedis
Genus:	†Archotuba
Species:	† A. conoidalis
Binomial name
Archotuba conoidalis Hou et al 1999

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.^[1] In the absence of soft parts, there really isn't enough data to confirm a biological affiliation.^[2]

References

1. Schmidt-Rhaesa, Andreas (2012-12-21). Nematomorpha, Priapulida, Kinorhyncha, Loricifera. ISBN 9783110272536.
2. Genus Archotuba Hou, Bergström, Wang, Feng, Chen, 1999.