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Name the tree if you can.

nice specimen!

@mackenzie-smith could help ID this.

Mr. Park what is it?

Hello @charles-du @daniel-park @mackenzie-ross-2. I apologize for the late response, I was teaching a very stressful online class last semester and am now catching up on myFOSSIL notifications. This is a very nice leaf! Is this from behind the high school? That site has been quarried pretty well and nice leaves like this are hard to find now a days. To help fill in the rest of the data, this is from Wheeler Co. and the formation is John Day Formation which is lowest Oligocene (about 33 Ma). My advisor Steve Manchester and Herb Meyer (who is park paleontologist at Florissant) did a monograph of this flora in 1997. From what I can see, this is a simple leaf with simple teeth; elliptical in shape and very long compared to its width, a cuneate base with a long, thick petiole and pinnate, crasspedodromous venation. I think this best resembles Quercus consimilis which is figured in their plate 24 (I’ll include a link at the end of this). Quercus is the genus for all oaks and is in the family Fagaceae, order Fagales (the beeches). Here is the link to their publication but feel free to @ me on any other ID’s from this site since I grew up digging here from time to time. Also let me know if you need me to fill in the first few boxes of the taxonomy as well. If you upload another picture of this with a scale bar, it will be museum grade for the website. Make sure it is in cm. https://www.researchgate.net/publication/269393528_The_Oligocene_Bridge_Creek_Flora_of_the_John_Day_Formation_Oregon

@mackenzie-smith Thank you for your response. It was very informative and helpful. The specimen was collected from Wheeler High School in Fossil, Oregon. It is a wonder little spot to spend you day digging! I’ll look into uploading to resurchgate.net. 🦕

@charles-du Oh, sorry for the confusion. The pictures can be curated here on the site if they are uploaded as specimens (see eMuseum if you are accessing this from a computer). ResearchGate is where scientists upload their published papers.