Armand de Ricqlès is a French paleontologist best known for his work in bone histology and its implications for the growth of dinosaurs (e.g.).
He also did a larger "Doctorat d'état" (a degree that no longer exists but that was required at the time to supervise doctoral students or for academic advancement).
[2] Armand de Ricqlès initially worked on the functional significance of extant histodiversity,[4][5] and applied this newly gained knowledge in paleobiological inferences.
[6] He has collaborated with several other histologists and paleontologists, including Timothy G. Bromage, John R. Horner, and Kevin Padian.
Through these collaborations, he has studied the growth, physiology,[1] habitat (aquatic to terrestrial)[7][8] and other paleobiological aspects[9] of various limbed vertebrates.