Studying Extinct Cirripedes during the 1850s: Charles Darwin and Joseph de Bosquet as ‘Brothers in Barnacles’

Pachyscalpellum heltzeli has recently been described in more detail in this paper (online; urn:lsid:zoobank.org:pub:BE62D227-BCCE-46E2-A8B5-69EB05A95522): Gale, Andrew S., John W. M. Jagt, and Stijn Goolaerts. “Cirripedes (Thoracica, Crustacea) from the Maastrichtian of Kalaat Senan, Tunisia.” Cretaceous Research, vol. 118 (2021): 104650. https://doi.org/10.1016/j.cretres.2020.104650.