Highbanks Metro Park - It's National Fossil Day! Our favorite fossil was found at Highbanks in 1987, the Dinichthys (also known as a Dunkleosteus). The large prehistoric shark dominated the ocean over
![File:Model of Dunkleosteus terrelli (fossil placoderm) (Late Devonian; Cleveland, Ohio, USA) 5 (34098911911).jpg - Wikimedia Commons File:Model of Dunkleosteus terrelli (fossil placoderm) (Late Devonian; Cleveland, Ohio, USA) 5 (34098911911).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/5/5a/Model_of_Dunkleosteus_terrelli_%28fossil_placoderm%29_%28Late_Devonian%3B_Cleveland%2C_Ohio%2C_USA%29_5_%2834098911911%29.jpg)
File:Model of Dunkleosteus terrelli (fossil placoderm) (Late Devonian; Cleveland, Ohio, USA) 5 (34098911911).jpg - Wikimedia Commons
![Diversity | Free Full-Text | A Devonian Fish Tale: A New Method of Body Length Estimation Suggests Much Smaller Sizes for Dunkleosteus terrelli (Placodermi: Arthrodira) Diversity | Free Full-Text | A Devonian Fish Tale: A New Method of Body Length Estimation Suggests Much Smaller Sizes for Dunkleosteus terrelli (Placodermi: Arthrodira)](https://pub.mdpi-res.com/diversity/diversity-15-00318/article_deploy/html/images/diversity-15-00318-ag-550.jpg?1678156486)