FOR some years past Mr. Austin Hobart, Clark has been flirting with the idea that the Echinoderms were derived from the Arthropods, but we all pretended not to notice. Now that he has come into the ...

THE first volume of this “Student's Text-book of Zoology” was published in 1898, and dealt with the invertebrate animals except echinoderms and arthropods. It was then hoped that another volume would ...

Fauchald, Kristian. 1975. "A commentary on Hartman's Atlas of Polychaetes." In Invertebrates of Southern California. I. Selected Groups of Annelids, Arthropods ...

Invertebrate paleontology is the scientific discipline within paleontology that investigates the fossil record of animals lacking a vertebral column, including groups such as mollusks, arthropods, ...