The bilaminar epithelium formed from the myotome and dermatome.
Comment:
[homology-note] "Thus, representatives of the agnathan vertebrates, chondrichthyans, and sarcopterygians all have a layer of undifferentiated cells external to the embryonic myotome. In the amniotes, this external cell layer is the dermomyotome. The simplest interpretation of the similar position, morphology, and lack of myosin labeling is that a dermomyotome epithelium is a shared, ancestral vertebrate characteristic.[well established][VHOG]" xsd:string {date_retrieved="2012-09-17", external_class="VHOG:0000676", ontology="VHOG", source="DOI:10.1111/j.1525-142X.2006.05079.x Devoto SH, Stoiber W, Hammond CL, Steinbacher P, Haslett JR, Barresi MJF, Patterson SE, Adiarte EG and Hughes SM, Generality of vertebrate developmental patterns: evidence for a dermomyotome in fish. Evolution and Development (2006)", source="http://bgee.unil.ch/"}