Domokos Tamás szerk.: Pro Natura. A Dél-Tiszántúl természeti értékei (Békéscsaba, Munkácsy Mihály Múzeum, 1999)

PALAEONTOLOGY The calciferous remains of molluscs living in the Upper Miocene and Pleistocene differs significantly from that of the typical sea-dwelling types, as the salt content of the Pannonian lake was much lower. The presence of Limnocardium species is the most caharacteristic feature of this layer, but relatives of some recent Molluscan species were also persent (Viviparus, Planorbarius). The economic significance of the research of neogene sediments is emphasised by the fact that these layers contain most of the oil and natural gas found in this region. The exhibited calciferous remains of molluscs, the trophy of the Aurochs and the skull of the Wooly Rhinoceros originate from the uppermost, most accessible layer of Pleistocene. In the Western part of Europe the brownish-black wooly Mammut appeared in the Riss-Würm or also known as Eem intergalaciation period (a period of warmer, milder climate between two glaciation, about 235 000-120 000 years ago). The strong wool and the fat deposit hump on the back were adaptations to the extremely cold climate and the lack of food.