In D&D 5e should a DM allow the use of Polymorph or Druid's Wild Shape to change into a dinosaur? Do you stick with RAW or does it break immersion too much?
Can a druid use her wild shape ability after casting polymorph? - Quora
Do Wild Shaped druids or polymorphed creatures count as shapechangers for Moonbeam?
Giant in the Playground Forums
Displacer Beast Druid Wild Shape Transformation revealed for Baldur's Gate 3 - AlcastHQ
Call of the Wild: A Druid Handbook (by Alien270)
Minor Polymorph Turn your friends into CR 0 animals : r/UnearthedArcana
Mercy's Guide to Mythical Wild Shape. A 41-pages guide to use a new optional feature for your druid, build your own beast and make Wild Shape relevent in any tier of play.
D&D 5e Player Tips Wild Shape vs Polymorph: A guide to shapechanging effects in D&D