Maclean, Robert A Persistent right aortic arch and cribiform plate aplasia in a northern elephant seal (Mirounga angustirostris). [electronic resource] - Journal of wildlife diseases Apr 2008 - 499-504 p. digital Publication Type: Case Reports; Journal Article ISSN: 0090-3558 Standard No.: 10.7589/0090-3558-44.2.499 doi Subjects--Topical Terms: Abnormalities, Multiple--veterinaryAnimalsAorta, Thoracic--abnormalitiesEthmoid Bone--abnormalitiesFatal OutcomeFemaleSeals, Earless--abnormalities