Basement membranes are crucial for proper olfactory placode shape, position and boundary with the brain, and for olfactory axon development. - Tignard, Pénélope; Pottin, Karen; Geeverding, Audrey; Doulazmi, Mohamed; Cabrera, Mélody; Fouquet, Coralie; Liffran, Mathilde; Fouchard, Jonathan; Rosello, Marion; Albadri, Shahad; Del Bene, Filippo; Trembleau, Alain; et al. (eLife, 2024)