Fossilised nautilus shell
Numéro d’image : 11743179
| Fossilised nautilus shell,Nautilus striatus,from the lower Jurassic period (195-172 million years ago) found at Lyme Regis. Nautilus,a Cephalopod,is represented today by one family found in the Indo-Pacific region. The shell is spirally coiled & divided by transverse septa (covered with calcite crystals here) into numerous gas-filled chambers,which maintain the animal's buoyancy. The living animal occupies the most recently formed chamber. The enclosure of gas is through the siphuncle or shelly tube (visible at centre),which connects the gas-filled chambers with the animal. In newly formed chambers water is pumped out by the siphuncle. Locomotion is by water jets | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Stammers, Sinclair |
| Taille de l’image : | 4417 px × 3409 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
Prix pour cette image À partir de 45 €
Produit vendu
(Calendrier, Carte postale, Carte de vœux, Impression sur textile, Packaging etc)
À partir de 45 €
Usage commercial
(Affichage, Annonce presse, Annonce TV, Carte, Digital - hors rés. sociaux, Digital - rés. sociaux etc)
À partir de 45 €
Éditorial
(Digital, Journal, Livre, Livre pratique, Magazine, Télévision etc)
À partir de 60 €
Usage non-commercial
(Digital - hors rés. sociaux, Digital - rés. sociaux etc)
À partir de 120 €