I think it is 80cm or close enough to that size.
The database writes it down as that long, and from the bestinslot video he made about the micro, he compared the Micro to the Compy. With the Compy being around 1 meter long, and she looks to be closer to the 80cm size than 60cm.
Our compys of JWE II are 70-80 cm, thats the size of the most famous subadult specimen from Solnhofen in Germany ( .... I live 50 km from this town

) ! ( This was the size of Lostworld Compys

) .... Dinosaur-Books from 1980 - 2003 had most often listed 70cm for Compys !
1 - 1,3m length would be a correct size for an adult specimen of Compsognathus .
Just Let a few Microceratus roam free to walk between visitors and compare it to the picture of the original 1:1 moviemodell.
Our Micros are around 60cm and much smaller than that modell,...just look at its head compared to the hand and head of the Woman that holds it.
Its nothing wrong with a 60cm version, but if you look at the Moviescene where the little girl holds one Microceratus you can clearly see that it was a much bigger Microceratus.
All in all I would be happy if Frontier could pleeeeaaaase give all Dinosaurs their normal Sound when we house them in Avaries!!!! ( And Dinosaurs should be able to run through Tourgates !)
With a very usefull glitch its still possible to get every Dinosaur in the Aviaries and strangely the Aviari-viewinggaleries are much better to show small Species without to much ugly Steelrods etc. in the way.
The Flat 360 Viewinggallery has just to much useless Steelrods directly in eyesight-hight!
No modern Safaripark would use such a really bad Design. ( A version without this Steelcage for small species would be great to have.
Please Team of Frontier, just give us sound for Dinosaurs in Aviarys ! ..... That would be great ! ( ... ehhh and All small Carnivores from 70cm - 1.3m could get option to use the insectfeeder

)