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a class of Gastropoda

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oldest known reptiles: turtles

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primitive reptile-like fossil birds of the Jurassic or early Cretaceous

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a large subclass of diapsid reptiles including: crocodiles

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one of four subclasses or superorder of Monocotyledones

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a group of mostly sympetalous herbs and some trees and shrubs mostly with 2 fused carpels

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primitive aquatic mainly freshwater crustaceans: fairy shrimps

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a group of families of mostly flowers having basal or free-central placentation and trinucleate pollen (binucleate pollen is commoner in flowering plants)

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barnacles

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single-host parasites of lower vertebrates and invertebrates

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one of four subclasses or superorders of Monocotyledones

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minute planktonic or parasitic crustaceans