Squamate reptile

Rehorek S.J., Firth B.T. and Hutchinson M.N. (2000). The structure of the nasal chemosensory system in squamate reptiles, 2 Lubricatory capacity of the vomeronasal organ. J Biosci 25, 181-190. 

Schwenk K. (1993). The evolution of chemoreception in squamate reptiles a phylogenetic approach. Brain Behav Evol 41, 124-137. 

The vomeronasal system, also known as the accessory olfactory system, consists of chemoreceptors, organized into the VNO, the vomeronasal nerve, its terminal, the accessory olfactory bulb, and more central pathways. First described by Jacobson in 1811, the VNO has been studied intensely. We now know how stimuli reach it and what behaviors it mediates. The VNO occurs in amphibians, reptiles, and mammals. Among mammals, it is best developed in marsupials and monotremes. In birds it only appears during embryogenesis. The VNO and its function are best known for squamate reptiles, particularly snakes, and rodents and ungulates among the mammals. 

Evaporative Water Loss in Squamate Reptiles, Ph.D. Thesis, University of Kansas, Lawrence. 

Maderson PFA, Chiu KW, Phillips JG. (1970) Endocrine-epidermal relationships in squamate reptiles. Mem Soc Endocrinol 18 259—284. 

Graves, B.M. D. Duvall. 1995. Aggregation of squamate reptiles associated with gestation, oviposition, and parturition. Herpetol. Mono. 9 102-119. 

BRY 13] Brykczynska U., Tzika A.C., Rodriguez 1. et al., Contrasted evolution of the vomeronasal receptor repertoires in mammals and squamate reptiles , Genome Biology and Evolution, vol. 5, pp. 389-401, 2013. 

Fig. 2.3(a) Variations in vertebrate oro-nasal duct systems early Reptile — X Amphibia — 1 Squamates — 2 Lower and Higher Mammals — 3a and b (modified after Bertmar, 1981). 

Fig. 4.2 Differentiation from olfactory placode of main and VN primordia (a) to (b), embryonic stages in reptiles (Squamates and Crocodylia). (a), Early invagination of placode (a ), late separation of primordia for AOS/MOS and (b), agenesis of presumptive VN(JO) cells in crocodile (NPT, nasal pit) (from Parsons, 1970).

Maderson, P. F. A., 1984, The squamate epidermis New light has been shed, in "The Structure, Development, and Evolution of Reptiles," M. W. J. Ferguson, ed.. Academic Press, London. 

Lee, M.S.Y. (1998) Convergent evolution and character correlation in burrowing reptiles towards a resolution of squamate relationships . Biological Journal of tbe Linnean Society, 65, 369—453. 

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