Definition of Nummuloidal. Meaning of Nummuloidal. Synonyms of Nummuloidal

- contrast has a depressed, wider than high, cross section and a beaded, nummuloidal siphuncle. Oxygonioceras is another loosely coiled brevicoceratid but...
- toward the apex, straight toward the aperture. The siphuncle is ventral, nummuloidal and contains inwardly radial actinosiphonate deposits. Walter C. Sweet...
- short, septa close spaced, sutures typically straight. The siphuncle is nummuloidal, containing actinosiphonate deposits within. Oonoceras is similar except...
- is subventral, composed of broadly expanded segments which gives it a nummuloidal or beaded appearance. PaleoBiology Database: Acleistoceras, basic info...
- lateral lobes and a shallow ventral lobe. The siphuncle is central and nummuloidal, composed of expanded segments that give a beaded appearance. Bernhard...
- the venter and found only in the adapical portion. Siphuncle segments nummuloidal (beaded in appearance), septal necks cyrtochoanitic (flared outwardly)...
- slightly toward the venter. Early segments are cylindrical. Later ones are nummuloidal and broader. The type species is Cyrtoceras indominum Barrande 1866....
- typically tear-drop in shape to subtriangular. The siphuncle is typically nummuloidal, like a string of beads, with outwardly flared septal necks, and located...
- suture with broad lateral lobes and ventral siphuncle with expanded, nummuloidal segments. Although also torticonically gyroconic—having an out of plane...
- sinus and a central to subcentral siphuncle composed of subquadrate to nummuloidal segments in which the septal necks are more strongly curved on the upper...