Teeth in tooth sockets sometimes fuse with the jawbone. The temporomandibular joints (TMJ) are the two joints connecting the jawbone to the skull. Dsungaripteridae covered their teeth with jawbone tissue for a crushing function. He discovered a few teeth and a jawbone amongst rocks that he had collected. In 2015, a hominin jawbone and teeth was discovered in the Afar region. In cremation urns, the coin sometimes adheres to the jawbone of the skull. Teeth and part of a jawbone excavated in 1981 were dated to 225,000 years ago. It was the first Jawbone headset with software that could be updated online. Launched in January 2010, Jawbone Icon is Jawbone's fourth Bluetooth headset. Additionally, Andreessen and Horowitz made personal investments in headset maker Jawbone in 2006. It is known only from a fossil partial lower jawbone, found in China. The submersible recovered a jawbone and phalanges. Using the jawbone of a donkey, he slew 1,000 Philistines. They find everything except one fragment of his jawbone. Unlike groupers or snappers, grunts have a strong fixed lower jawbone.