11. Ostracods are believed to have fed on algae on the bottom of the lake.12. This classification was confirmed by microfossils of the ostracod " Pattersoncypris ". 13. The zones where the two waters mix are attractive to ostracods and young fish. 14. Lingula cornea, Platyschisma helicites and numerous phyllocarids and ostracods occur among the fossils. 15. The fish feeds on aquatic and terrestrial invertebrates, including odonates, and ostracods . 16. In northern Australia the most common prey items are ostracods , gastropods and euphausiids. 17. During the Paleocene Maryland was home to at least 10 different kinds of ostracods . 18. By early 1954 ten different species of ostracods had been described from those deposits. 19. The upper calcareous portion is equivalent to the Ostracod Beds of the Alberta plains. 20. Sediments left by the lake indicate the presence of gastropods, ostracods and stromatolites.
