[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.

Cheers,

Paul


Dr Paul M.A. Willis
Consulting Vertebrate Palaeontologist
Quinkana Pty Ltd
pwillis@ozemail.com.au