tadpole shrimp
Definition
Noun: 1. A kind of branchiopod crustacean: A small freshwater crustacean of the order Notostraca, characterized by a broad, flat carapace that covers much of its body and a long, segmented abdomen, giving it a superficial resemblance to a tadpole. They are often considered living fossils.
Usage
- The tadpole shrimp is an ancient species that has remained largely unchanged for millions of years.
- Biologists study the tadpole shrimp to understand primitive arthropod evolution.
- A temporary rain pool can be a habitat for the resilient tadpole shrimp.
Advanced Usage
- Ecological Indicator: Tadpole shrimp are sometimes used as bioindicators due to their specific habitat requirements in temporary freshwater pools.
- "Living Fossil": This term is frequently applied to the tadpole shrimp ( and genera) because their morphology has persisted over extremely long geological periods.
Variants and Related Words
- Notostraca: The scientific order to which tadpole shrimp belong.
- Triops: A common genus of tadpole shrimp.
- Branchiopod: The larger class of crustaceans that includes tadpole shrimp, fairy shrimp, and water fleas.
- Carapace: The hard, shield-like part of the exoskeleton that covers the tadpole shrimp's head and thorax.
Synonyms
- Shield shrimp
- Notostracan
Related Phrases
- Temporary pool fauna: A phrase describing the community of organisms, including tadpole shrimp, that inhabit ephemeral water bodies.
- Living fossil organism: A descriptive phrase often associated with the tadpole shrimp.
Noun
-
a kind of branchiopod crustacean
