1. Infraorder Aspidosiphonida (uncertain > nomen dubium, incertae sedis rank name, superfluous former order under former class Phascolosomatidea )
2. Infraorder Golfingiida (uncertain > nomen dubium, incertae sedis rank name, superfluous former order under former class Sipunculidea)
3. Infraorder Phascolosomatida (uncertain > nomen dubium, incertae sedis rank name, superfluous former order under former class Phascolosomatidea)
4. Infraorder Phascolosomatidea (uncertain > nomen dubium, incertae sedis rank name, superfluous former class under former phylum Sipuncula)
5. Infraorder Sipunculidea (uncertain > nomen dubium, incertae sedis rank name, superfluous former class under former phylum Sipuncula)

marine, brackish, fresh, terrestrial

recent only

Not documented

Read, G.; Saiz-Salinas, J. (2024). World Sipuncula Database. Sipuncula incertae sedis. Accessed through: Xu, K., An, J., Ding, L., Dong, D., Gao, Y., Huang, Y., Jiang, W., Lei, Y., Li, K., Li, X., Li, Y., Liang, X., Lin, G., Lin, M., Liu, H., Liu, J., Liu, W., Liu, X., Lu, D., Ma, Z., Ren, X., Sha, Z., Sun, J., Sun, S., Sun, Z., Tian, L., Wang, D., Wang, J., Wu, X., Xia, B., Xiao, N., Yin, J., Zhang, J., Zhang, S., Zhang, X., Zhao, E., Zheng, X., Zhou, H., Zhou, J. & Zhou, K. (2024) Chinese Register of Marine Species at: https://www.marinespecies.org/charms/aphia.php?p=taxdetails&id=255176 on 2024-04-19

Xu, K., An, J., Ding, L., Dong, D., Gao, Y., Huang, Y., Jiang, W., Lei, Y., Li, K., Li, X., Li, Y., Liang, X., Lin, G., Lin, M., Liu, H., Liu, J., Liu, W., Liu, X., Lu, D., Ma, Z., Ren, X., Sha, Z., Sun, J., Sun, S., Sun, Z., Tian, L., Wang, D., Wang, J., Wu, X., Xia, B., Xiao, N., Yin, J., Zhang, J., Zhang, S., Zhang, X., Zhao, E., Zheng, X., Zhou, H., Zhou, J. & Zhou, K. (2024). Chinese Register of Marine Species. Sipuncula incertae sedis. Accessed at: https://www.marinespecies.org/charms/aphia.php?p=taxdetails&id=255176 on 2024-04-19

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