By : Emma and Shanlie


They can be found buried in the sediments in oceans, lakes, and alge. They feed on dead organic material, suspended organic particles, microscopic plants or they are predators and eat others.


  • Structure : The body of an ostracod is encased by two valves resembling the shell of a clam. A distinction is made between the valve (hard parts) and the body with its appendages (soft parts)
  • Lifecycle : There are usually nine stages between egg and adult, variety of complex reproductive strategies they can reproduce sexually and asexually (which means they can reproduce on their own, cloning)
  • Interesting Facts : some of the largest sperm in the animal kingdom up to 10 times their own body length! They can be bioluminescence. They can survive being eaten by fish. By attacking in groups, ostracods can prey on animals much larger than themselves.


We drew a diagram and we noticed the seed like structure. At first we thought it was a larve coming out of an egg but it wasn't. The other way we could tell it was a Ostracoda was because it was translucent, and there weren't very many others like that. And the other ones were not the same shape. It could have been a Branchiopoda but it has the wrong shape so that is why we think it is an Ostracoda