International scientists have uncovered the oldest known phosphatic stromatoporoid sponge, dating back approximately 480 ...
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480-million-year-old sponge discovered in China built Earth’s first skeletal reefThe discovery of a 480-million-year-old sponge in China has revolutionized scientists’ understanding of early reef ecosystems ...
International scientists have uncovered the oldest known phosphatic stromatoporoid sponge, dating back approximately 480 million years to the Early ...
3 min read The Cambrian period, part of the Paleozoic era, produced the most ... first arose about 545 million years ago in the early Cambrian and thrived throughout the world's oceans until ...
The Devonian, part of the Paleozoic era, is otherwise known as the Age of ... jaws lined with bladelike plates that acted as teeth. Early placoderms fed on mollusks and other invertebrates ...
After Keppie (2000). The Appalachian orogen of North America is divisible with some controversy into five tectonolithologic zones which range in age from Late Precambrian through the Early Paleozoic ...
They were especially important during the middle Paleozoic era (from the late Middle Ordovician ... leading to questions about their origins and early evolutionary history. Recently, an ...
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