North American index fossils, invertebrates . ^C<-^^w^/ Fig. 1926. Mellita caroliniana, ventral, lateral and dorsal views, slightlyreduced. (After McCrady.) one in center of posterior interambulacrum; posterior petals long-est; periproct at proximal end of posterior lunule, close to themouth. Pliocenic-Recent. 35. M. caroliniana McCrady. (Fig. 1926.) Pliocenic. Slightly wider behind; posterior lunule twice as long as others. Differs from the recent M. sexforis Lamarck of the Atlantic coast 38 594 NORTH AMERICAN INDEX FOSSILS. of southern United States and Mexico, in its more orbicular form,
North American index fossils, invertebrates . ^C<-^^w^/ Fig. 1926. Mellita caroliniana, ventral, lateral and dorsal views, slightlyreduced. (After McCrady.) one in center of posterior interambulacrum; posterior petals long-est; periproct at proximal end of posterior lunule, close to themouth. Pliocenic-Recent. 35. M. caroliniana McCrady. (Fig. 1926.) Pliocenic. Slightly wider behind; posterior lunule twice as long as others. Differs from the recent M. sexforis Lamarck of the Atlantic coast 38 594 NORTH AMERICAN INDEX FOSSILS. of southern United States and Mexico, in its more orbicular form,more regular convex upper surface, smaller lunules, with slightdepression extending to the margin, and less branched ambulacra!furrows on under side. Pliocenic marls of South Carolina, etc. XXIII. Encope and thicker than Mellita, more or less subpentahedral,with broad notch or lunule in median line of each ambulacrum,and large lunule in posterior interambulacrum. Pliocenic toRecent. 36. E. macrophora Ravenel. (Fig. 1927.) Plio
Size: 1629px × 1534px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidn, booksubjectpaleontology
