Aka: Abnormal Coronary Arteries, Abnormal Coronary Artery, Coronary Artery Abnormalities, Congenital Anomaly of Coronary Artery, Anomalous Coronary Vessel.
Unconformities. Unconformities are gaps in the geologic record that may indicate episodes of crustal deformation, erosion, and sea level variations. They are a feature of stratified rocks, and are therefore usually found in sediments (but may also occur in stratified volcanics).
A biconformity is when an older unconformity is directly overlain by a younger unconformity. Biconformity is an unconformity surface that represents two known unconformity surfaces of different ages but directly overlying each other as though they both were a single unconformity surface.