Luckett W P, Mossman H W
Am J Anat. 1981 Nov;162(3):265-85. doi: 10.1002/aja.1001620307.
Morphogenesis of fetal membranes in African and American hystricognathous rodents is essentially the same, even in the possession of such uniquely derived features as a subplacenta and a capillary ring on the inverted yolk sac, features that are unknown in any other rodent group. This is good evidence that the African and American hystricognaths comprise a monophyletic group. Certain interesting features of the decidua, decidual giant cells, periplacental bilaminar omphalopleure, and epamnion are described in Bathyergus and Hystrix. Of special interest in Bathyergus is the widespread decidualization of the uterine connective tissue, even that of the myometrium and perimetrium; and the presence of numerous, usually binucleate, decidual giant cells.
非洲和美洲豪猪型啮齿动物胎膜的形态发生基本相同，即使它们具有一些独特的衍生特征，如副胎盘和倒置卵黄囊上的毛细血管环，而这些特征在其他任何啮齿动物群体中都不存在。这有力地证明了非洲和美洲豪猪型啮齿动物构成一个单系群。在深海囊鼠属和豪猪属中描述了蜕膜、蜕膜巨细胞、胎盘周双层卵黄羊膜褶和胎膜外层的某些有趣特征。在深海囊鼠属中特别有趣的是子宫结缔组织广泛蜕膜化，甚至子宫肌层和子宫外膜也是如此；并且存在大量通常为双核的蜕膜巨细胞。
