He studied and demonstrated especially the metamorphoses in the echinodermata, and his broad vision and careful observation in this new and surprising scientific field cleared up many things that had been mysteries before.
"Makers of Modern Medicine"
James J. Walsh
In proof of this he called attention to the entire absence of Ammonites, Belemnites, Brachiopoda, echinodermata, Corals, and other marine fossils, so characteristic of the Cretaceous rocks above, and of the Oolitic strata below, and to the presence in the Weald of Paludinae, Melaniae, Cyrenae, and various fluviatile shells, as well as the bones of terrestrial reptiles and the trunks and leaves of land-plants.
"The Student's Elements of Geology"
Sir Charles Lyell
There is little in the character of the echinodermata to call for special notice.
"The History of Tasmania, Volume I (of 2)"
John West