Tag Archives: Paleozoic

Wooster’s Fossils of the Week: The mysterious Paleozoic encrusters Ascodictyon and Allonema

  The above pair of fossils are small sclerobionts commonly found on hard substrates in shallow marine sediments through much of the Paleozoic, especially the Silurian and Devonian. Paul Taylor and I have been studying them for a few years … Continue reading

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