PASSING THROUGH. “It seems quite clear that the anatomy of living marsupials (metatherians) gives a good indication of the structure of those advanced early Cretaceous therians from which the first placentals (eutherians) evolved. One might say, as has Lillegraven (1974) that the eutherians passed through a metatherian grade.”
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linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022