![[Transparent Background PNG]Sand dollar fossil](https://images.freepicture.cc/middleImage/739/7394be540777ead878672f19198bb3ef112652f6.webp)
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fossil sand dollar paleontology geology nature history education science research specimen collection museum natural history marine biology invertebrate echinoderm plate test skeleton calcite calcium carbonate mineral sediment rock fossil record extinct species evolution biology anatomy morphology paleoecology taphonomy stratigraphy paleontology geology nature history education science research specimen collection museum natural history marine biology invertebrate echinoderm plate test skeleton calcite calcium carbonate mineral sediment rock fossil record extinct species evolution biology anatomy morphology paleoecology taphonomy stratigraphy