Keywords: Trilobite ontogeny.png example of trilobite ontogeny Shumardia Conophrys salopiensis Redrawn after Whittington 1959 http //commons wikimedia org/w/index php title File Trilobite_ontogeny png action edit References Whittington H B Ontogeny of Trilobita pp 127-145 in Moore R C ed 1959 Treatise on Invertebrate Paleontology Part O Arthropoda 1 Geological Society of America University of Kansas Press Lawrence Kansas Boulder Colorado xix + 560 pp 415 figs own 2010-03-23 Antonov Shumardia Trilobite anatomy Morphogenesis Diagrams in Italian |