Guidetti, R.; McInnes, S.J.; Kristensen, R.M. (2024). World List of Tardigrada.
Ursulinius pratensis (Iharos, 1964). Accessed through: Marine Species Traits editorial board (2024) Marine Species Traits at: https://marinespecies.org/traits./aphia.php?p=taxdetails&id=1666066 on 2024-09-06
Marine Species Traits editorial board (2024). Marine Species Traits.
Ursulinius pratensis (Iharos, 1964). Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1666066 on 2024-09-06