Sponge Fossil Small 301×320 Medium 602×640 Large 963×1024 Download Tiff Original 2258×2400 | (2.0 MB) Description An illustration of a sponge fossil. Keywords fossil, sponge Galleries Sponges Source: L. Brent Vaughan Hill's Practical Reference Library Volume II (NewYork, NY: Dixon, Hanson and Company, 1906)
