Identify the mammals in this paleoart.

[Megalosaurus]

Hi there.

I was brosing the web and get to this image:

Its designed by Mark Hallett.

Can someone of you please identify the mammals represented in the image? Thank you.
And if you know about another early mammals art, share it here please.

Thank you.

[wings]

The description for the painting ("Dawn of a new day") as follow:

" Unaware of the origin of the Triceratops skull they are close to, three small primitive mammals Eodidelphis (left), Ptilodus (center) and Gobiaconodon (right) and its babies symbolize the end of the dinosaur's long dominance and the beginning of the Age of Mammals."

[Megalosaurus]

Eodidelphis, Ptilodus and Gobiaconodon

Thank you very much.

I Just getting excited about non-dinosaur creatures.
I'd like to see more prehstoric mammal paleo arts.

Thanks.