A caver dropped into a hole in the limestone of Comal County, Texas, put his face into the underground stream at the bottom, and found the streambed paved with bones.
John Young photographed what he could see and sent the images to John Moretti, a palaeontologist at the University of Texas at Austin, expecting an identification and possibly a polite thank you. Moretti asked to come and look himself. What followed, written up in a paper published in Quaternary Research, is the first palaeontological study ever made of a Texas water cave.



I know it would be easy enough to find, but could you share the link for the story?
Here’s one
https://www.smithsonianmag.com/smart-news/these-snorkeling-scientists-stumbled-upon-an-surprising-trove-of-fossils-in-a-texas-water-cave-180988464/
This was the intended - https://scienceblog.com/d-deep-beneath-central-texas-a-caver-put-his-head-beneath-an-underground-stream-and-found-ice-age-fossils-everywhere-mammoths-mastodons-saber-toothed-cats-and-an-armadillo-relative-as-big-a/
Accidentally overwrote when I added the thumbnail url - thank you for posting a link!
Dammit, the wrong link got pasted when I was adding the image, sorry - thanks for letting me know
https://scienceblog.com/d-deep-beneath-central-texas-a-caver-put-his-head-beneath-an-underground-stream-and-found-ice-age-fossils-everywhere-mammoths-mastodons-saber-toothed-cats-and-an-armadillo-relative-as-big-a/
editing the post, sorry!
No worries! I appreciate it