We introduce the Ontology of Craniofacial Development and Malformation (OCDM), a 
project of the NIH-funded FaceBase consortium, whose goal is to gather data from 
multiple species, at levels ranging from genes to gross anatomy, in order to 
understand the causes of craniofacial abnormalities. The OCDM is being developed 
in order to facilitate integration of these diverse forms of data in a central 
Hub. It currently consists of several components, including human adult and 
developmental anatomy, corresponding mouse structures, and malformations. 
Example queries show the potential of the OCDM for intelligent data annotation 
and querying.