Chordate of the three subdivisions of chordates, all have distinct skulls. They include the hagfish, which have no vertebrae. Michael J. Benton commented that "craniates are characterized by their heads, just as chordates, or possibly all deuterostomes, are by their tails". Most craniates are vertebrates, in which the notochord is replaced by the vertebral column. These consist of a series of bony or cartilaginous cylindrical vertebrae, generally with neural arches that protect the spinal cord, and with projections that link the vertebrae. However hagfish have incomplete braincases and no vertebrae, and are therefore not regarded as vertebrates, but as members of
What Might Have Been What Might Have Been "What Might Have Been" is a song recorded by American country music group Little Texas. It was released in May 1993 as the lead-off single from their second (and breakthrough) album, "Big Time". It was written by the band's lead guitarist Porter Howell, rhythm guitarist Dwayne O'Brien, and keyboardist and vocalist Brady Seals. The song reached number 2 on the "Billboard"s Hot Country Songs chart and number 11 on the Canadian "RPM" country Tracks chart in 1993. It is one of their best known songs, peaking at number 16 on the Hot Adult Contemporary Tracks chart.