Definition of Nummuloidal. Meaning of Nummuloidal. Synonyms of Nummuloidal

- 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...
- con****uous. The siphuncle is located between the center and venter and is nummuloidal, composed of rounded expanded segments, the inside of which contains...
- short, septa close spaced, sutures typically straight. The siphuncle is nummuloidal, containing actinosiphonate deposits within. Oonoceras is similar except...
- suborthochoantic; later segments, in the mature phragmocone, become cyrtochoanitic, nummuloidal, broader than long. Parietal deposits lining the interior of the siphuncle...
- suture with broad lateral lobes and ventral siphuncle with expanded, nummuloidal segments. Although also torticonically gyroconic—having an out of plane...
- slightly toward the venter. Early segments are cylindrical. Later ones are nummuloidal and broader. The type species is Cyrtoceras indominum Barrande 1866....
- differing details especially of the siphuncle. The siphuncle is ventral; nummuloidal in the adapical half of the phragmocone but with concave profiles in...
- hyponomic sinus but are otherwise transverse. The siphuncle in ventral, nummuloidal, with discrete, irregular, actinosiphonate deposits at the septal foramina...
- lateral lobes and a shallow ventral lobe. The siphuncle is central and nummuloidal, composed of expanded segments that give a beaded appearance. Bernhard...