fil.; Estheria Greyii, Jones, indicating a Permo-Carboniferous age.
Estheria (RUppell, 1837) was instituted for the species dahalacensis, which Sars includes in his genus Leptestheria (1898); but Estheria was already appropriated, and of its synonyms Cyzicus (Audouin, 1837) is lost for vagueness, while Isaura (Joly, 5842) is also appropriated, so that Leptestheria becomes the name of the typical genus, and determines the name of the family.
(Bairdia Carbonia), phyllopods (Estheria), phyllocarids (Acanthocaris, Dithyrocaris), schizopods (Anthrapalaemon), Eurypterids (Eurypterus, Glyptoscorpius).
- Estheria, sp.; D from Dubuque, Iowa; (e) the eye.
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