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I took the day off and went fossil hunting yesterday at a Castle Hayne Formation exposure. I haven't been to this site in almost a decade. I've been wanting to get some matrix from the site so I can sift for microfossils, so that was the purpose of the trip. Here are some photos of fossil seen. The most abundant echinoid at this site is Eurhodia rugosa ideali, there are hundreds here. Other echinoids are scarce. Here are a couple E. rugosa ideali.
I found this mystery fossil at the Castle Hayne Quarry near Wilmington, North Carolina over 15 years ago. It was in limestone of the Eocene age Castle Hayne Fm. It consists of parallel shallow indentations that have grayish looking coatings in the bottom of them. I have had suggestions that it was a plant impression, soft coral, and bryozoan. I don't know what fossil forum to have it identified when nobody is sure if it's plant or animal. Any suggestions? The long direction of the specimen is about 3 inches by two or two and a half inches. 7.5 cm by 6 cm
Found a gastropod steinkern last week from sequence 3 of the Castle Hayne Formation with some unusual inclusions and mineral growth. The steinkern has a highly polished surface but has been partially coated with minerals. The coating is presumable calcitic but also has some marcasite? crystals adhering. A natural window into the shells sediment content shows small spiral fossils and a neat dendrite. Gastropod is 2.25 inches longest measure. Pics were taken with DinoXcope.