Hylleberg, Jorgen, <br/><br/>
Horizontal pivot axis and standardized shell outline :  : a new method to compare morphology of cardiids (Bivalvia: Cardiidae) exemplified by the genera Cardium, Acanthocardia and Vasticardium; the fossil Cardium hians Brocchi, 1814 replaced by Cardium paleobrocchi nom. nov. / 
Jorgen Hylleberg. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ACANTHOCARDIA.<br/>CARDIUM.<br/>MOLUSCOS.<br/>MORFOLOGIA EXTERNA.<br/>MORFOLOGIA INTERNA.<br/>VASTICARDIUM.