Micropalaeosoma balticus is an extinct, fossil turbellarian flatworm known from Baltic amber from an exclave between what two countries?
Micropalaeosoma Micropalaeosoma balticus (formerly "Palaeosoma balticus" ) is an extinct, fossil turbellarian flatworm known from Baltic amber of Kaliningrad, Russia, that lived approximately 40 million years ago. It measured approximately 1.5 mm in length and is the oldest and most complete flatworm fossil yet discovered.
Carpathian Ruthenia Carpathian Ruthenia, Carpatho-Ukraine, or Zakarpattia (Rusyn and Ukrainian: Карпатська Русь , "Karpats'ka Rus' " , or Rusyn and Ukrainian: Закарпаття , "Zakarpattja " ; Slovak and ; Hungarian: "Kárpátalja" ; Romanian: "Transcarpatia" ; Polish: "Zakarpacie" ; German: "Karpatenukraine" ) is a historic region in the border between Central and Eastern Europe, mostly located in western Ukraine's Zakarpattia Oblast, with smaller parts in easternmost Slovakia (largely in Prešov Region and Košice Region) and Poland's Lemkovyna. Before World War I most of this region was part of the Habsburg Kingdom of Hungary. In the interwar period, it was part of the First and Second Czechoslovak Republic. During World War II, the region was annexed by the Kingdom of Hungary once again. After the war, it became part of Soviet Ukraine.