These fossils were collected in west Cape May, NJ, along the Delaware bay. What’s kind of odd is the sediments in that part of the Atlantic coastal plain were all deposited during the Cretaceous or later (according to a report I read by the New Jersey geological service or something) yet both of these orders (tabulata and rugosa) are Paleozoic, having gone extinct at the Permian-Triassic boundary. I think it’s possible they were carried there by a glacier, perhaps from the Appalachians. There are horn coral fossils in the lower Michigan peninsula for example which arrived there in this way. They are called Petoskey stones.
I will have to read more about the geology of Finland and Estonia.