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Excerpt from Paléontologie, ou Description des Animaux Fossiles de l'Algérie, Vol. 2: Zoophytes; Échinodermes; 2e Livraison
Oursin cordiforme, peu élevé, caréné sur le dos en arrière, ayant en avant un méplat un peu gibbeux, bordé par le fasciole interne, d'où descend un sillon évasé échancrant un peu le bord et se prolongeant vers la bouche. Dessous concave en avant, convexe a l'arrière.
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