Look at the pattern of spicules. Is this a siliceous (Hexactinellida) or calcareous (Calcarea) sponge? 2. Specimen #142. Astreospongia is an important index fossil for the Silurian and Devonian. Find ...
Scientists predict that sponges—among the most basic animals—arose a few hundred million years before the occurrence of the oldest confirmed fossil specimens, which date to about 500 million years ago ...
The Museum has a substantial collection of fossil sponges that contains an estimated 71,000 specimens, including more than 200 type and figured specimens. The collection also contains a number of ...
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What was the first animal on Earth?Turner presented what she proposes as the oldest known animal — a fossil specimen of what she says is an 890 million-year-old sponge — in a 2021 paper in the journal Nature. However ...
Scientists have created a new sponge-type material that absorbs carbon ... have the potential to bridge the gap between the use of fossil fuels and new energy sources such as hydrogen, and could ...
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