Definition of Nummuloidal. Meaning of Nummuloidal. Synonyms of Nummuloidal

- slightly toward the venter. Early segments are cylindrical. Later ones are nummuloidal and broader. The type species is Cyrtoceras indominum Barrande 1866....
- 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...
- suture with broad lateral lobes and ventral siphuncle with expanded, nummuloidal segments. Although also torticonically gyroconic—having an out of plane...
- the venter and found only in the adapical portion. Siphuncle segments nummuloidal (beaded in appearance), septal necks cyrtochoanitic (flared outwardly)...
- 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...
- is subventral, composed of broadly expanded segments which gives it a nummuloidal or beaded appearance. PaleoBiology Database: Acleistoceras, basic info...
- short, septa close spaced, sutures typically straight. The siphuncle is nummuloidal, containing actinosiphonate deposits within. Oonoceras is similar except...
- ventral margin is slender with short expanded segments that give it a nummuloidal or beaded appearance, and contains irregular blade-like actinosiphonate...
- lateral lobes and a shallow ventral lobe. The siphuncle is central and nummuloidal, composed of expanded segments that give a beaded appearance. Bernhard...