Caetano, João Marcus Vale; Delcourt, Rafael; Ponciano, Luiza Corral Martins de Oliveira (March 2023). "A taxon with no name: 'Ubirajara jubatus' (Saurischia: Compsognathidae) is an unavailable name and has no nomenclatural relevance". Zootaxa. 5254 (3): 443–446. doi:10.11646/zootaxa.5254.3.10. PMID37044710.
iczn.org
"What is a nomen nudum?". International Commission on Zoological Nomenclature. Retrieved 11 September 2010.
nhm.ac.uk
International Commission on Zoological Nomenclature. "Glossary". International Trust for Zoological Nomenclature. Retrieved 11 September 2010.
Caetano, João Marcus Vale; Delcourt, Rafael; Ponciano, Luiza Corral Martins de Oliveira (March 2023). "A taxon with no name: 'Ubirajara jubatus' (Saurischia: Compsognathidae) is an unavailable name and has no nomenclatural relevance". Zootaxa. 5254 (3): 443–446. doi:10.11646/zootaxa.5254.3.10. PMID37044710.