Albanerpeton pannonicum. Just a little guy while also casually being the last of entire distinct lineage of amphibians that survived into the Early Pleistocene.
I don't expect it to be in the show but thought this is my chance to talk about it.

A family of Arctotherium angustidens (adult female and her two young male cubs) was discovered in a cave in Argentina during the expansion of a highway.
'Photograph of a newly opened cave
excavated in the same level as that from which the fossil bears were recovered.'

This is actually a part of a much larger mural, other parts of this include the famous Smilodon and Paramylodon at the Tar Pits!