where does the term wisdom teeth come from
Wisdom tooth Although formally known as third molars, the common name is wisdom teeth because they appear so late â€“ much later than the other teeth, at an age where people are presumably "wiser" than as a child, when the other teeth erupt.[13] The term probably came as a translation of the Latin dens sapientiae. Their eruption has been known to cause dental issues for centuries; it was noted at least as far back as Aristotle:
Dimetrodon Dimetrodon (/daɪˈmiːtrədɒn/ ( listen)[1] or /daɪˈmɛtrədɒn/,[2] meaning "two measures of teeth") is an extinct genus of synapsids that lived during the Cisuralian (Early Permian), around 295–272 million years ago (Ma).[3][4][5] It is a member of the family Sphenacodontidae. The most prominent feature of Dimetrodon is the large neural spine sail on its back formed by elongated spines extending from the vertebrae. It walked on four legs and had a tall, curved skull with large teeth of different sizes set along the jaws. Most fossils have been found in the southwestern United States, the majority coming from a geological deposit called the Red Beds of Texas and Oklahoma. More recently, fossils have been found in Germany. Over a dozen species have been named since the genus was first described in 1878.