(architecture) upright consisting of the vertical part of a column. Classified under: Nouns denoting man-made objects. Synonyms: scape; shaft. Hypernyms (scape is a kind of...): upright; vertical (a vertical structural member as a post or stake).
Shark teeth can happen at any time, but they are most common during two periods in a child's development. The first time is around age 6, when the lower front teeth usually grow in. The second is around age 11, when the upper back molars appear.
Each shark can produce up to 30,000 teeth over the span of their life. These teeth consist of dentine and enamel which does fossilize in the ocean. There are ways to determine how old these teeth are. That has lead to significant evidence of how long sharks have been around.