Lungfish and bichir are found in a basal position on the piscine branch.
Ming Chen, Ming Zou, Lei Yang, Shunping He 2012, 'Basal Jawed Vertebrate Phylogenomics Using Transcriptomic Data from Solexa Sequencing',PLoS ONE10.1371/journal.pone.0036256. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
From sturgeon and gar we sequenced one and from bichir two members of this novel keratin group.
Neumann Sebastian, Schätzlein Sonja, Haberkamp Mark, Schaffeld Michael, HunzingerChristian 2007, 'A novel and ancient group of type I keratins with members in bichir, sturgeon andgar', Frontiers in Zoologyhttp://www.frontiersinzoology.com/content/4/1/16. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)