Tsylmosuchus
... that the rauisuchian Tsylmosuchus is known from strata found in Russia that are early Olenekian in age, making it one of the earliest archosaurs?
... that the <a href="./Rauisuchia" id="mwEAM" rel="mw:WikiLink" title="Rauisuchia">rauisuchian</a> <i id="mwEAQ"><b id="mwEAU"><a href="./Tsylmosuchus" id="mwEAY" rel="mw:WikiLink" title="Tsylmosuchus">Tsylmosuchus</a></b></i> is known from <a href="./Stratum" id="mwEAc" rel="mw:WikiLink" title="Stratum">strata</a> found in <a href="./Russia" id="mwEAg" rel="mw:WikiLink" title="Russia">Russia</a> that are early <a href="./Olenekian" id="mwEAk" rel="mw:WikiLink" title="Olenekian">Olenekian</a> in age, making it one of the earliest <a href="./Archosaur" id="mwEAo" rel="mw:WikiLink" title="Archosaur">archosaurs</a>?