Invasion literature was a niche genre with very little sociopolitical impact.
Glikmanius is an extinct genus of cladodont shark which lived in the Carboniferous of North America and Russia .. Carboniferous. Carboniferous. genus. genus. cladodont. cladodont. shark. shark. North America. North America. Russia. Russia. The genus is based on a whole specimen from Nebraska , USA .. genus. genus. Nebraska. Nebraska. USA. United States. Glikmanius is named in honour of the Russian palaeontologist , Dr. Leonid Glikman , who studied the genus and was `` the first to propose its ctenacanthiform affinity '' .. genus. genus. Russian. Russians. palaeontologist. palaeontologist. ctenacanthiform. ctenacanthiform. left  |  thumb  |  Tooth of Glikmanius occidentalis .. Glikmanius occidentalis. Glikmanius occidentalis. left. image :Glikmanius occidentalis.jpg