Sinodelphys
= Sinodelphys
{c}
An Early <Cretaceous> mammal initially interpreted as a metatherian; later comparative analysis supported a <eutherian> placement, illustrating uncertainty in <fossil> assignment. <An Early Cretaceous eutherian and the placental–marsupial dichotomy by Shundong Bi and others>[Nature 558, pp. 390–395; Ambolestes anatomy and revised placement of Sinodelphys]{ref}