"Here lie the remnants of myriad prehistoric marine animals, including placoderms, a prehistoric class of fish that represents some of our earliest jawed ancestors."
Source, in full
We found the oldest ever vertebrate fossil heart. It tells a 380 million-year-old story of how our bodies evolved. Kate Trinajstic & John Long, Published: September 15, 2022. THE CONVERSATION, Retrieved: 23, November 2023.