franzanth:This upside-down bowling pin was a distant relative of the sea lilies. It lived partially
franzanth:This upside-down bowling pin was a distant relative of the sea lilies. It lived partially buried under the sediment around 500 million years ago, with the pin part acting like an anchor.—Tumblr is now blocked here so I won’t post often. Follow me elsewhere:Facebook · Instagram · Twitter · Ko-fi · Patreon · Shop -- source link