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of Fossil Ecosystems (2nd ed.). Manson Publishing. pp. 47–58. ISBN 978-1-84076-041-5. D. J. Scourfield (1926). "On a new type of crustacean from the old...

of Fossil Ecosystems (2nd ed.). Manson Publishing. pp. 47–58. ISBN 978-1-84076-041-5. "Introduction to Branchiopoda". University of California, Berkeley...