micraster in a sentence
n.
📚 Grade Level: Grade 11, Grade 12
Definition
Micraster is a genus of extinct echinoids (sea urchins) known from fossil records, particularly from the Cretaceous period, which are used to study ancient marine environments.
Crossword clues for micraster
Crossword clue ideas and answer hints for the word "micraster".
- Small sea urchin from ancient oceans.
- Fossilized echinoid from the Cretaceous era.
- Genus of extinct marine invertebrates.
- Study ancient marine environments with this creature.
- Cretaceous sea urchin known from fossils.
Micraster sentence examples
- Micraster fossils can provide valuable insights into the ancient marine environments of the Cretaceous period.
- The paleontologist was excited to discover a well-preserved Micraster specimen during the excavation.
- Micraster species are commonly found in chalk deposits, showcasing their prevalence in historic oceans.
- Researchers often study Micraster to understand the evolutionary adaptations of echinoids.
- The distinctive shape of the Micraster shell makes it a fascinating subject for both amateur and professional collectors.