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Episode 51: Eurypterids
Manage episode 102132432 series 31054
Content provided by Dave Marshall. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Dave Marshall or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://player.fm/legal.
Eurypterids, or ‘sea-scorpions’ are an extinct group of chelicerates: the group containing the terrestrial arachnids (such as spiders and scorpions) and the aquatic ‘merostomes’ (represented today solely by the horseshoe crabs). They bear a gross-morphological resemblance to scorpions (hence the informal name) but, in being aquatic, may have shared more in common with horseshoe crabs. They inhabited the waters of the Paleozoic Era and were typically scavengers or predators. Most eurypterids were quite small and unremarkable, but some genera, such as Pterygotus and Jaekelopterus grew to incredible sizes; the latter reached an estimated 2.5m (8’ 2”) and is still the world’s largest-known arthropod.
Described today in BMC- Evolutionary Biology is the oldest-yet-described eurypterid Pentecopterus decorahensis and we've got lead author Dr James Lamsdell, Yale University, to introduce us to the eurypterids and to discuss the significance of this new genus.
229 episodes
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Manage episode 102132432 series 31054
Content provided by Dave Marshall. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Dave Marshall or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://player.fm/legal.
Eurypterids, or ‘sea-scorpions’ are an extinct group of chelicerates: the group containing the terrestrial arachnids (such as spiders and scorpions) and the aquatic ‘merostomes’ (represented today solely by the horseshoe crabs). They bear a gross-morphological resemblance to scorpions (hence the informal name) but, in being aquatic, may have shared more in common with horseshoe crabs. They inhabited the waters of the Paleozoic Era and were typically scavengers or predators. Most eurypterids were quite small and unremarkable, but some genera, such as Pterygotus and Jaekelopterus grew to incredible sizes; the latter reached an estimated 2.5m (8’ 2”) and is still the world’s largest-known arthropod.
Described today in BMC- Evolutionary Biology is the oldest-yet-described eurypterid Pentecopterus decorahensis and we've got lead author Dr James Lamsdell, Yale University, to introduce us to the eurypterids and to discuss the significance of this new genus.
229 episodes
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Get in-depth coverage of current and future trends in technology, and how they are shaping business, entertainment, communications, science, politics, and society.
…
continue reading
How can we, humans, look at our relationship to nature differently? In season three of Going Wild, on top of stories about animals, we invite you to journey through the entire ecological web — from the tiniest of life forms to apex predators — alongside the scientists, activists and adventurers who study it. Wildlife biologist and host Dr. Rae Wynn-Grant has been studying wild animals in their natural habitats all over the world for years. Our award-winning podcast takes you inside the hidde ...
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The Science Show gives Australians unique insights into the latest scientific research and debate, from the physics of cricket to prime ministerial biorhythms.
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