Silurian coral Acervularia sp. BIRUG 15411

Fossil coral of the genus *Acervularia* (specimen number: BIRUG 15411). This specimen of a rugose coral was collected from Wren’s Nest, in the Much Wenlock Limestone Formation of the English West Midlands by W. Woodall. Rugose corals were abundant from the mid Ordovician to the end of the Permian (~470–252 million years ago), but became extinct in the Permian–Triassic mass extinction. This specimen was donated to the Lapworth Museum by Sir George Holcroft (1916). Model created by Andrew Jones with photogrammetry in Agisoft Photoscan.