in taxon positively regulates somitomeric trunk muscle development regulation of somitomeric trunk muscle development positive regulation of somitomeric trunk muscle development Any process that activates, maintains or increases the frequency, rate or extent of somitomeric trunk muscle development. The somitomeric trunk muscle is derived from somitomeric mesoderm. The muscle begins its development with the differentiation of the muscle cells and ends with the mature muscle. GO:0014709 positive regulation of muscle organ development biological regulation Vertebrata <vertebrates>