TY  - ART
TI  - Ontogeny, intraspecific variation, and systematics of the Late Cambrian trilobite Dikelocephalus / Smithsonian contributions to paleobiology — Illustration, Page 50
PY  - 1994
UR  - https://www.biodiversitylibrary.org/page/58079310
ID  - page-58079310
ER  -