Later those pads fuse with the anterior end of the centrum of the vertebra to which they belong; where the vertebral column is rendered inflexible, the disks are ossified with the centra and all trace of them is lost.
The centra] government depended ultimately on the armed support of th two great powers; to quarrel with those would be to ruin th constitution, or at best to play into the hands of the extrem revolutionists.
Eurycormus), to biconcave centra, and finally to the socket-and-ball condition that prevails at the present day.
Embolomeri, with the centra and intercentra equally developed disks, of which there are thus two to each neural arch; these disks perforated in the middle for the passage of the notochord.
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