Research images

CT-based 3D reassembly of the skull of the stem bird Ichthyornis dispar, which had a transitional beak, a derived brain, and a primitive jaw muscle attachment region. Image credit: Michael Hanson

3D volumetric rendering from laser-scanning confocal data of gecko embryo, clarified using a modified CLARITY protocol and immunostained for nerve (blue), cartilage (orange), and muscle (red). Image credit: Daniel Smith-Paredes

3D volumetric rendering of above gecko embryo with nerve channel deactivated, showing cartilage in orange and muscle in red. Image credit: Daniel Smith-Paredes

CT rendering of skull of Velociraptor. Image credit: Bhart-Anjan Bhullar

CT rendering of skull of undescribed stem crocodile collected by Yale Peabody expeditions to the Triassic of Utah. Image credit: Bhart-Anjan Bhullar

Volumetric rendering from laser-scanning confocal data of quail foot immunostained for nerve (red) and cartilage (green). Image credit: João Botelho

Summary figure showing inner ear evolution and behavioral correlates in Reptilia. Image credit: Michael Hanson

Volumetric renderings from laser-scanning confocal data of embryonic alligator (left) and quail (right) arms, immunostained for cartilage (blue) and muscle (red). Image credit: Daniel Smith-Paredes

Volumetric rendering of laser-scanning confocal data of early gecko embryo immunostained for nerve (white) and muscle (red). Image credit: Daniel Smith-Paredes

CT renderings of brain endocasts and skull roof/braincase bones of important fossil taxa on the line to birds. Image credit: Matteo Fabbri and Bhart-Anjan Bhullar

Alligator embryo immunostained for cell nuclei (blue), nerve (green), and muscle (orange). Image credit: João Botelho