Petter A J
Ann Parasitol Hum Comp. 1977 Mar-Apr;52(2):151-8.
In an attempt to interpret the distribution of Ascaridoidea in Mammals and Birds, a scheme is proposed, based on the concept of geological periods of evolutionary expansion for parasitic lines. It is assumed that the evolutionary expansion period of Ascaridoidea in Mammals occurred after the diversification of primitive mammals; this would explain the absence of ascarids in these groups. Periods of evolution appear to coincide with the diversification of Carnivora and Sirenia, the first to become invaded; Artiodactyla and Equidae became invaded later, at the time of their diversification. The other cases of parasitism of Mammals by Ascarids are thought to be "captures".
为了解释蛔总科在哺乳动物和鸟类中的分布情况，我们基于寄生虫类群进化扩张的地质时期概念提出了一个方案。假定蛔总科在哺乳动物中的进化扩张期发生在原始哺乳动物分化之后；这可以解释这些类群中蛔虫的缺失现象。进化时期似乎与首先受到侵染的食肉目和海牛目的分化相吻合；偶蹄目和马科在其分化时期较晚受到侵染。其他哺乳动物被蛔虫寄生的情况被认为是“捕获”。
