Maletz, J.; Steiner, M.; Fatka, O. (2005). Middle Cambrian pterobranchs and the Question: What is a graptolite?. <em>Lethaia.</em> 38(1): 73-85., available online athttps://doi.org/10.1080/00241160510013204[details]
Swalla, B.J.; van der Land, J. (2024). Hemichordata World Database. Rhabdotubus robustus Maletz, Steiner & Fatka, 2005 †. Accessed at: https://www.marinespecies.org/hemichordata/aphia.php?p=taxdetails&id=579882 on 2024-08-04
original descriptionMaletz, J.; Steiner, M.; Fatka, O. (2005). Middle Cambrian pterobranchs and the Question: What is a graptolite?. <em>Lethaia.</em> 38(1): 73-85., available online athttps://doi.org/10.1080/00241160510013204[details]