Hyalodiscus
Encyclopedia
Hyalodiscus is an extant genus of diatom
known also from the fossil
record.
Diatom
Diatoms are a major group of algae, and are one of the most common types of phytoplankton. Most diatoms are unicellular, although they can exist as colonies in the shape of filaments or ribbons , fans , zigzags , or stellate colonies . Diatoms are producers within the food chain...
known also from the fossil
Fossil
Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...
record.