Some issues of Belemnitids ecology

Author: shalva keleptrishvili
Keywords: belemnitids, rostrum, phragmocone
Annotation:

The study of the ecology of the belemnitids has a long history. They are completely extinct organisms of cephalopoda. Therefore, when determining the rostrum of functional significance, its biology and belemnitids other issues of the field of paleoecology, we analysis the characteristics of the rostrum and phragmocone structures, analysis of the conditions of the formation, indirect data of death and post-death injuries. Various researchers have a different function to the raster: 1. Balance or participation in the balance of the organism; 2. Protection from hitting and damping; 3. A weapon that helped in cutting water waves; 4. Compensation of the compulsive force in phragmocone to give the animal a horizontal position when swimming; 5. Attach the sludgeto the bottom; 6. weapon of attack; 7. The estimated collision time damage phragmocone protection; 8. Pillars and fins of the attachmentplace; 9. Ground digging. Our by studied stockholder lesions varied fractures testified that the rostrum of was solid. Belemnites counterparts ecentricity calamary, free-floating, strong and fast moving predators. A confirmation of this statement can be considered a torpedo-like extended body, a hand-held apparatus with tentacles and the existence of an ink bag.

Lecture files:

Some issues of Belemnitids ecology [en]
ბელემნიტიდების ეკოლოგიის ზოგიერთი საკითხი [ka]