Data up to Jan 2025
Treatise on Invertebrate Paleontology
1950 • 3,732 citations
1972 • 1,041 citations
THE EARLY RADIATION AND PHYLOGENY OF ECHINODERMS
1984 • 251 citations
The ancestry of the vertebrates
1986 • 228 citations
Early Paleozoic Echinoderms
1975 • 82 citations