I have a few fossils from Northern Arizona, and I‘m not sure how to identify them based on their appearance aside from that they are likely either bryozoans or coral.Two are honeycomb with small dots in the center of each opening, and one of these has grooves radiating from the center of each honeycomb shape.One is bigger and has larger depressions, but the edges of them are jagged and not uniform. The grain is rough.I‘m new at this and any help would be appreciated, thanks!
The left two look like bryozoa (coral usually doesn't have such a pronounced hole.although the middle specimen might be coral). The third looks like dolomite or calcite crystals.
the last one looks like its from salt weathering not a fossil
