Blackburn, Daniel G (1993). "Chorioallantoic placentation in squamate reptiles: structure, function, development, and evolution". Journal of Experimental Zoology. 266 (5): 414–430. doi:10.1002/jez.1402660508.
Griffith, O. W.; Ujvari, B.; Belov, K.; Thompson, M. B. (2013). "Placental lipoprotein lipase (LPL) gene expression in a placentotrophic lizard, Pseudemoia entrecasteauxii". Journal of Experimental Zoology Part B: Molecular and Developmental Evolution. 320 (7): 465–70. doi:10.1002/jez.b.22526. PMID23939756.
Griffith, O.W.; Van Dyke, J.U.; Thompson, M.B. (2013). "No implantation in an extra-uterine pregnancy of a placentotrophic reptile". Placenta. 34 (6): 510–511. doi:10.1016/j.placenta.2013.03.002. PMID23522396.
nih.gov
pubmed.ncbi.nlm.nih.gov
Griffith, O. W.; Ujvari, B.; Belov, K.; Thompson, M. B. (2013). "Placental lipoprotein lipase (LPL) gene expression in a placentotrophic lizard, Pseudemoia entrecasteauxii". Journal of Experimental Zoology Part B: Molecular and Developmental Evolution. 320 (7): 465–70. doi:10.1002/jez.b.22526. PMID23939756.
Griffith, O.W.; Van Dyke, J.U.; Thompson, M.B. (2013). "No implantation in an extra-uterine pregnancy of a placentotrophic reptile". Placenta. 34 (6): 510–511. doi:10.1016/j.placenta.2013.03.002. PMID23522396.