Favoritos de stephanie_nyc

One of two on the trunk of a White Oak/Q. alba sapling sourced in a nursery in Millstone, NJ. Tree was planted here in the Green-Wood arboretum on November 13th or 14th, 2023.

I feel pretty confident that the snails came in with the tree.

Both snails seen in final image. These are presumably the same species; but I've made separate observations for each individual if they're not. The other: https://www.inaturalist.org/observations/191471604

from shell hash.
The outer shell layer is mostly eroded, just a couple shells have some spiral ribbing left. (maybe the brown colour is just staining, but I found nothing similar that was not brown).

Button blanks from wild mussels discarded into or along the river.
Date is a wild guess, though it hardly matters. These poor organisms may have died nearly 100 years ago. Found in the mid- 80's on the river at Meyer, IL.

This observation is for the small holes on this northern quahog. Not sure if the various shapes and sizes were all made by the same organism or by several.

Shell collected by my kids sometime in the past few years in Shirley Chisholm State Park off Jamaica Bay.

This was a fun puzzle we found in the woods at Glenmeal SF. It’s a Fomes fomentarius conk with a bunch of markings, eventually I figured out those are left by the radula of a snail / slug. Apparently you can identify some taxa (families? Genus?) by the pattern— anyone have an educated guess?