Reconstruction of trilobite ancestral range in the
southern hemisphere January 10, 2019, FAPESP
https://phys.org/news/2019-01-reconstruction-trilobite-ancestral-range-southern.html
http://agencia.fapesp.br/reconstruction-of-trilobite-ancestral-range/29527/
Carbonaro, F.A., Langer, M.C., Nihei, S.S., de Souza Ferreira, G.
and Ghilardi, R.P., 2018. Inferring ancestral range reconstruction
based on trilobite records: a study-case on Metacryphaeus
(Phacopida, Calmoniidae). Scientific reports, 8(1), p.15179.
https://www.researchgate.net/publication/328251419_Inferring_ancestral_range_reconstruction_based_on_trilobite_records_a_study-case_on_Metacryphaeus_Phacopida_Calmoniidae
https://www.nature.com/articles/s41598-018-33517-5
Bolivian Trilobites - At The Top Of The World
American Museum of Natural History
https://www.amnh.org/our-research/paleontology/paleontology-faq/trilobite-website/trilobite-localities/bolivian-trilobites-at-the-top-of-the-world
Gallery of the Devonian Trilobites of Bolivia
https://www.amnh.org/our-research/paleontology/paleontology-faq/trilobite-website/trilobite-localities/bolivian-trilobites-at-the-top-of-the-world/gallery-of-the-devonian-trilobites-of-bolivia
Yours,
Paul H.