An animal carrier for installation into an automotive seat is described. The animal carrier has a frame that is formed by the attachment of the bottom edge of a substantially vertical back panel to the back facing edge of a substantially horizontal floor panel, and the further attachment of a spine to both the top edge of the vertical back panel and the forward facing edge of the floor panel. The enclosure of the animal carrier can be formed by the attachment of two side panels, and optionally a front panel, to the frame. The animal carrier can be mounted onto an automotive seat by the passage of an installation belt though a belt path or channel formed through either the back or floor panel.