Schmid P
Folia Primatol (Basel). 1979;31(4):301-11. doi: 10.1159/000155893.
Further evidence of parallel evolution of Necrolemur and Microchoerus is put forward. The two forms were found in a fissure filling of Upper Eocene age (Fons 4) from Dielsdorf (Zürich region, Switzerland). Not only the dentition shows different morphs, but also postcranial material represents two vertical clingers and leapers of different size.
有关奈克罗狐猴（Necrolemur）和小丘齿兽（Microchoerus）平行进化的更多证据被提了出来。这两种形态的化石是在瑞士苏黎世地区迪尔斯多夫的上始新世时期（冯斯4号层）的一个裂隙填充物中发现的。不仅牙齿显示出不同的形态，而且颅后骨骼材料也代表了两种不同大小的垂直攀缘和跳跃动物。
