centrum Centra are represented by mineralized, calcified, or ossified portions that surround the notochord. The autocentrum, present in Danio and all other living teleosts, is formed by direct ossification outside the elastica externa of the notochord (Arratia, 1999). TAO:0000126 VSAO:0000183 autocentrum centra centre vertébral (French) périchorde (French) teleost_anatomy true