tarsal spur वाक्य

The sexes are similar, although the female is usually slightly smaller than the male and with smaller tarsal spurs.
It shows evidence of tarsal spurs, indicating that, like most non-therian Mammaliaformes, at least some symmetrodonts were venomous like the modern platypus.
Of particular interest is that the etymology of the suffix " reke " would be justified, since it would probably have retained the tarsal spurs omnipresent in basal mammals.