Belemnitella mucronata, Print, Belemnitella is a genus of belemnite from the Late Cretaceous of Europe and North America. Belemnitella was a squidlike animal, probably related to the ancestors of modern squids and cuttlefish. The shell was internal. The rostrum or guard is found the most often and possesses a distinctive slit at its ventral surface and a ridge on the dorsal surface. The phragmocone (internal shell) has a small protoconch at its tip, and fit into the cavity and the guard. It also had septa and a ventral siphuncle (tube filled with living tissues running through chambers) within
Belemnitella mucronata, Print, Belemnitella is a genus of belemnite from the Late Cretaceous of Europe and North America. Belemnitella was a squidlike animal, probably related to the ancestors of modern squids and cuttlefish. The shell was internal. The rostrum or guard is found the most often and possesses a distinctive slit at its ventral surface and a ridge on the dorsal surface. The phragmocone (internal shell) has a small protoconch at its tip, and fit into the cavity and the guard. It also had septa and a ventral siphuncle (tube filled with living tissues running through chambers) within the phragmocone, projecting forward as a beak-like blade.
Size: 3482px × 5096px
Location:
Photo credit: © Artokoloro / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: america, ancestors, animal, beak-, belemnite, belemnitella, blade, cavity, chambers, cretaceous, cuttlefish, distinctive, dorsal, europe, filled, fit, genus, guard, internal, late, living, modern, mucronata, north, phragmocone, possesses, print, projecting, protoconch, related, ridge, rostrum, running, septa, shell, siphuncle, slit, small, squidlike, squids, surface, tip, tissues, tube, ventral
