Aquatic animals adopt several methods of dealing with buoyancy

Home» Articles » Aquatic animals adopt several methods of dealing with buoyancy

Placodus:聽Aquatic animals adopt several methods of dealing with buoyancy. The placodonts used what is known as pachystasis: the development of particularly thick and heavy bones to keep the body submerged. Voluminous lungs allowed them to adjust their buoyancy. Thistechnique is often used by animals that feed whilewalking along the sea bed, such as modern dugongs and sca-ottcrs.(animatronic dinosaur)


Features:聽Like Paraplacodus. Placodus has protruding teeth at the front. However they are shorter, thicker and more spoorvshaped. The crushing teeth are not confined to the edges of the mouth but form a broad pavement across the palate, and the skull is particularly strong to withstand the stresses of crushing seashells. A row of bony scutes forms a jagged ridge along the back. A gap at the top of the skull may have held a light-sensitive organ.


The laws of Paraplacodus are uniquely adapted to picking up shellfish, with three pairs of protruding teeth in the top and two in the bottom. The teeth project from the front of the mouth. They have a senes of rounded crushing teeth in the upper and lower jaws. The thick ribs produce a distinctly box-like body with an almost square cross-section, a strong set of belly ribs forming the flat floor of the body - a heavy design that kept it close to the seabed.

Leave a Reply

Your email address will not be published. Required fields are marked *

Best Animatronic Dinosaur Manufacturer


Animatronic Dinosaur Packaging and shipping
Related Products List
  • Product List

  • Contact Us



    Phone: +86-15881309412

    Tel: +86-813-5204450

    Skype ID: real-dinosaur

  • Leave a Message Online

    * indicates required field
  • Production Process

    Production Process of animatronic dinosaur
  • zigong animatronic dinosaur factory

    Zigong real dinosaur science and technology co., ltd will export animatronic dinosaur and animatronic animal models approximately 2000 pcs annually, the export markets spread over 30 countries, in comparison, we prefer to call them the artwares or handicrafts.

    • realdinosaur's youtube
    • realdinosaur's facebook
    • realdinosaur's twitter
    • realdinosaur's google+
    recent posts produts list contact realdinosaur



    Phone: +86-1588-1309-412

    Skype ID: real-dinosaur

    Address: No.17, Bancang Industrial Park, High-Tech Development Zone, Zigong, Sichuan, China