[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: Australian mammal remains

>>The specimen is a placental, possibly the worlds oldest. It is not a rodent
>>which are relatively advanced mammals. The specimen cosists of a lower jaw
>>with premolars and molars still attached. As always, the Science Show on
>>Radio National gace tyhe best coverage.
>Stupid (but probably very common) question.  What is it about half a lower
>jaw that tells you its a placental mammal?

The arangement of cusps (the bumps of the teeth) are quite distinctive and
diagnostic for most mammal groups.



Dr Paul M.A. Willis
Consulting Vertebrate Palaeontologist
Quinkana Pty Ltd