Page:Walcott Cambrian Geology and Paleontology II.djvu/236

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154
SMITHSONIAN MISCELLANEOUS COLLECTIONS
VOL. 57

Table of Classification

Class Crustacea
Sub-Class Branchiopoda
Order Anostraca Calman
Family Opabinidæ, new family
Genus Opabinia, new genus
Genus Leanchoilia, new genus
Genus Yohoia, new genus
Genus Bidentia, new genus
Order Notostraca Calman
Family Naraoidæ, new family
Genus Naraoia, new genus
Family Burgessidæ, new family
Genus Burgessia, new genus
Family (Undetermined)
Genus Anomalocaris Whiteaves
Family Waptidæ, new family
Genus Waptia, new genus
Sub-Class Malacostraca
Order Hymenocarina Clarke
Family Hymenocaridae Salter
Genus Hymenocaris Salter
Family (Undetermined)
Genus Hurdia, new genus[1]
Genus Tuzoia, new genus
Genus Odaraia, new genus
Genus Fieldia, new genus
Genus Carnarvonia, new genus
Sub-Class Trilobita
Order (Undetermined)
Family Marrellidæ, new family
Genus Marrella, new genus
Family (Undetermined)
Genus Nathorstia, new genus
Order Hypoparia Beecher
Family (Undetermined)
Genus Mollisonia, new genus
Genus Tontoia, new genus


  1. No attempt has been made to indicate the family relations of the large forms represented by the genera Hurdia, Tuzoia, and Odaraia. With our present knowledge of them they might possibly be referred to the Hymenocaridæ of Salter.