Taxon - Odkazy a literatura
The Interim Register of Marine and Nonmarine Genera [1103543]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Sphenostemon Baillon, 1875]
Datum citace: 9. prosinec 2019
Kew Science - Plants of the World online 2024-05 [2663-1]
Kew Science - Plants of the World online [https://powo.science.kew.org], Facilitated by the Royal Botanic Gardens, Kew [jako Sphenostemon Baill.]
Datum citace: 1. únor 2025
Paleobiology Database [319862]
Paleobiology Database [https://paleobiodb.org/] [jako Sphenostemon Baillon, 1875]
Datum citace: 28. leden 2018