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Delabre, Christiane (2002). „Complete Mitochondrial DNA of the Hagfish, Eptatretus burgeri: The Comparative Analysis of Mitochondrial DNA Sequences Strongly Supports the Cyclostome Monophyly”. Molecular Phylogenetics and Evolution22 (2), 184–192. o. DOI:10.1006/mpev.2001.1045. PMID11820840.
(2009a) „Timing of Genome Duplications Relative to the Origin of the Vertebrates: Did Cyclostomes Diverge before, or after?”. Molecular Biology and Evolution26 (1), 47–59. o. DOI:10.1093/molbev/msn222. PMID18842688.
Heimberg, Alysha M. (2010. november 9.). „microRNAs reveal the interrelationships of hagfish, lampreys, and gnathostomes and the nature of the ancestral vertebrate”. PNAS107 (45), 19379–19383. o. DOI:10.1073/pnas.1010350107. PMID20959416. PMC2984222.
nih.gov
pubmed.ncbi.nlm.nih.gov
Delabre, Christiane (2002). „Complete Mitochondrial DNA of the Hagfish, Eptatretus burgeri: The Comparative Analysis of Mitochondrial DNA Sequences Strongly Supports the Cyclostome Monophyly”. Molecular Phylogenetics and Evolution22 (2), 184–192. o. DOI:10.1006/mpev.2001.1045. PMID11820840.
(2009a) „Timing of Genome Duplications Relative to the Origin of the Vertebrates: Did Cyclostomes Diverge before, or after?”. Molecular Biology and Evolution26 (1), 47–59. o. DOI:10.1093/molbev/msn222. PMID18842688.
Heimberg, Alysha M. (2010. november 9.). „microRNAs reveal the interrelationships of hagfish, lampreys, and gnathostomes and the nature of the ancestral vertebrate”. PNAS107 (45), 19379–19383. o. DOI:10.1073/pnas.1010350107. PMID20959416. PMC2984222.
ncbi.nlm.nih.gov
Heimberg, Alysha M. (2010. november 9.). „microRNAs reveal the interrelationships of hagfish, lampreys, and gnathostomes and the nature of the ancestral vertebrate”. PNAS107 (45), 19379–19383. o. DOI:10.1073/pnas.1010350107. PMID20959416. PMC2984222.