Hello! I am new to the forum, and this is my first time posting.
Today I was at Moolack Beach on the Oregon Coast (part of the Astoria formation, I think), and I found something I hadn’t seen before. I found it in the surf. Attached are multiple photographs. Please forgive the zoom/occasional blurriness. The fossil seems to be about 10cm (~4in) long, and 5.5cm (~2in) wide at the wider end.
Thank you for checking it out!