This Brain Remained Intact in a 310 Million-Year-Old Fossil
The discovery suggested that horseshoe crab brains haven’t changed much and that there are more ways for soft tissues to be preserved in the fossil record.
United States Javier Ortega Hern Nicholas Strausfeld Russell Bicknell Yale Peabody Museum Of Natural History Harvard University Museum Of Comparative Zoology
Source: nytimes.com