Several isolated teeth and jaw fragments of beavers (Rodentia: Castoridae), discovered at the Villafranchian (MN 16b?) site of Węże 2 in southern Poland, are attributable to two species: Dipoides ex gr. problematicus-sigmodus and Trogontherium (Euroxenomys) minus. The genus Dipoides and the species Trogontherium (Euroxenomys) minus have not previously been reported from Poland. Their presence at the Węże 2 site suggests that these lesser-known and extinct representatives of the Castoridae were adapted to similar conditions as the modern species (Castor fiber and C. canadensis).

在波兰南部 Węże 2 的 Villafranchian (MN 16b?) 遗址发现的几个孤立的海狸牙齿和颌骨碎片（啮齿目：Castoridae）可归于两个物种：Dipoides ex gr。questionableus-sigmodus和Trogontherium (Euroxenomys) 减去。Dipoides属和Trogontherium (Euroxenomys) minus 以前没有在波兰报道过。它们在 Węże 2 遗址的存在表明，这些鲜为人知且已灭绝的蓖麻科代表适应了与现代物种（蓖麻纤维和C. canadensis）相似的条件。