Atheist is a progressive/technical death metal band from Sarasota, Florida, USA and regarded as one of the main developers of Floridian death metal. Their music is highly technical and sometimes reminiscent of jazz, combining brutal riffs with subtle latin music arrangements. They were founded in 1984 under the name Oblivion by guitarist (and later vocalist) Kelly Shaefer and drummer Mark. Mark was later replaced by drummer Steve Flynn because Kelly and Steve had similar musical tastes. Roger Patterson would later join as their bassist.