I haven't read all of Martín Gardella's micros, because he's written many many many, but if there was one that starred a talking dinosaur I wouldn't be at all surprised.
Martín's first collection of micros, Instantáneas, which means something like 'stuff that happens in an instant', is out now via Andromeda Press and can be purchased here, here or even here, although only in Spanish at the moment I'm afraid.