There is a book....
Yealm Bridge Cavern
NGR SX 592 518
https://www.geocurator.org/images/resources/geocurator/vol10/geocurator_10_4.pdf
access 22/1/19 [summary]
?Freedman, Jan. 2015. William Buckland's connections to the last surviving Pleistocene collections from Yealm Bridge Caverns, Devon. The Geological Curator 10 (4): 147-158. In 2012, Plymouth City Museum and Art Gallery received a large donation of subfossil bones excavated from several caves on the Kitley Estate, Yealmpton, Devon. Included in this collection of over 4000 specimens, was a small wooden box holding 184 bones and teeth from Yealm Bridge Cavern. The specimens present in the collection include wolf (Canis lupus), fox (Vulpes vulpes), bear (Ursus sp.), spotted hyena (Crocuta crocuta), horse (Equus caballus), woolly rhinoceros (Coleodonta antiquitatis), red deer (Cervus elaphus), reindeer (Rangifer tarandus), bison (Bison priscus), sheep (Ovis aries), woolly mammoth (Mammuthus primigenius) and rat (Rattus rattus). An accompanying hand written note with the box suggested that these specimens were sent to William Buckland for identification. Supported by a generous grant from the Marc Fitch Fund, this paper outlines the research undertaken to discover when this collection was collected, who collected it and the links to William Buckland. The grant also allowed for the specimens to be re-packed into more appropriate storage to safeguard it for the future. Comparing the fauna to other sites with radiocarbon dates suggests the Yealm Bridge Cavern collection dates to around 40,000 - 35,000 years BP.?