tadpole shrimp
Noun 1. a kind of branchiopod crustacean (hypernym) branchiopod crustacean, branchiopod, branchiopodan (member-holonym) Triops, genus Triops | ||||
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Tadpole shrimp Definition from Language, Idioms & Slang Dictionaries & Glossaries
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tadpole shrimp
tadpole shrimp
n : a kind of branchiopod crustacean
tadpole shrimp
n : a kind of branchiopod crustacean
Tadpole shrimp Definition from Encyclopedia Dictionaries & Glossaries
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Notostraca
Members of the order Notostraca (colloquially referred to as notostracans, called Triops, tadpole shrimp or shield shrimp) are small crustaceans in the class Branchiopoda. Triops have two internal compound eyes and one naupliar eye in-between, a flattened carapace covering its head and leg-bearing segments of the body. The order contains a single family, with only two extant genera. Their external morphology has apparently not changed since the Triassic appearance of Triops cancriformis around 220 million years ago. Triops cancriformis may therefore be the "oldest living animal species on earth." The members of the extinct order Kazacharthra are closely related, having been descended from notostracans.
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