![Clasper appendages discovered in mid-Cambrian trilobite show horseshoe crab-like mating behavior | Department of Organismic and Evolutionary Biology Clasper appendages discovered in mid-Cambrian trilobite show horseshoe crab-like mating behavior | Department of Organismic and Evolutionary Biology](https://oeb.harvard.edu/sites/hwpi.harvard.edu/files/styles/os_news_full/public/oeb/files/trilobite_amplex_sullivan.png?m=1659106189&itok=eg5Ht-pk)
Clasper appendages discovered in mid-Cambrian trilobite show horseshoe crab-like mating behavior | Department of Organismic and Evolutionary Biology
American Museum of Natural History - Welcome to Trilobite Tuesday! The Devonian trilobites that emerge from outcrops aligning Bolivia's sky-high Altiplano plateau are of special note. Often encased within hard limestone concretions,
![Frontiers | The Development of the Silurian Trilobite Aulacopleura koninckii Reconstructed by Applying Inferred Growth and Segmentation Dynamics: A Case Study in Paleo-Evo-Devo Frontiers | The Development of the Silurian Trilobite Aulacopleura koninckii Reconstructed by Applying Inferred Growth and Segmentation Dynamics: A Case Study in Paleo-Evo-Devo](https://www.frontiersin.org/files/Articles/259645/fevo-05-00037-HTML-r2/image_m/fevo-05-00037-g001.jpg)