Tag: Paleozoic
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Long-Standing Question Answered – How Mass Extinction Paved the Way for Oysters and Clams
SciTechDaily has a piece about the rise of the mollusks over the brachiopods after the Permian Mass Extinction. Scientists have long wondered why bivalve species like clams and oysters replaced the brachiopods about 250 million years ago. During the Paleozoic, brachiopods dominated the sea floor, but they are now just a small part of the…
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Video for the ESCONI September 2022 General Meeting – “Paleozoic fishes of the Illinois Basin”
The September 2022 General Meeting was held on Friday, September 9th, 2022. The presenter was Dr. Ryan Shell of the Cincinnati Museum Center. The title of his talk was “Paleozoic fishes of the Illinois Basin”. Dr. Shell is a research associate in the department of vertebrate paleontology at the Cincinnati Museum Center and a Paleontological…
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ESCONI September 2022 General Meeting – Friday, September 9th, 2022 at 8:00 PM via Zoom – “Paleozoic fishes of the Illinois Basin”
The September 2022 General Meeting will be held on Friday, September 9th, 2022 at 8:00 PM via Zoom. The presenter is Dr. Ryan Shell of the Cincinnati Museum Center. The title of his talk is “Paleozoic fishes of the Illinois Basin”. Dr. Shell is a research associate in the department of vertebrate paleontology at the Cincinnati…
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Trilobite Tuesday #41: Travels with Trilobites
There’s a new trilobite book coming out on June 21st, 2022. It’s called “Travels with Trilobites”. The author is Andy Secher a prolific collector of trilobites. He lives in New York City just a few blocks from the American Museum of Natural History. He’s co-editor of the AMNH’s very informative trilobite website. Trilobites were some…
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Longest known continuous record of the Paleozoic discovered in Yukon wilderness
Phys.org has a story about ocean conditions in the early to mid Paleozoic Era. Using a newly discovered contiguous geologic record of the Paleozoic Era discovered in Canada’s Yukon, research, detailed in a recent paper in Science Advances, shows that the low oxygen ocean conditions of the Paleozoic lasted into the Devonian period, which is…
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Trilobite Tuesday #23: AMNH: Trilobites on Land
It’s been generally accepted that trilobites were marine animals, living only in the ocean. However, there are some specimens that might hint that some of them crawled out of the sea. The American Museum of Natural History (in New York) has a page about this. Here is a paper from Nature that also proposes that…
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Trilobite Tuesday #21: Pathology: Bites, Injuries & Healing
The AMNH’s Trilobite Website has a page on trilobite injuries. Over the many years that trilobites existed and considering the many, many fossil specimens that have been (and will be) found, there had to be some with signs of predation. And, of those, there had to be some that got away from the predator. There…
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Trilobite Tuesday #11: Richard Fortey on Palaeocast
If you have most than a passing interest in trilobites, you’ve certainly heard of Richard Fortey. He’s one of the foremost researchers of trilobites in the world. He fell in love with trilobites at age 14. He’s appeared in a bunch of BBC nature programs in recent years and written numerous books on paleontology, including…
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Infernovenator steenae, a new serpentine recumbirostran from the ‘Mazon Creek’ Lagertätte further clarifies lysorophian origins
The Zoological Journal has another new paper describing a Mazon Creek vertebrate. This one is called Infernovenator steenae. The paper is authored by Arjan Mann, Jason D Pardo, and Hillary C Maddin of the Department of Earth Sciences, Carleton University in Ottawa, Ontario, CA. Earlier this year, Mann and Maddin published a description of a…
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Book Review – Carboniferous Giants and Mass Extinction: The Late Paleozoic Ice Age World
The Inquisitive Biologist has an interesting (and complete!) book review of “Carboniferous Giants and Mass Extinction: The Late Paleozoic Ice Age World” by George R McGhee, Jr. It caused me to run out (ok, click) and buy the ebook. So far, it’s very good. The ebook is available at all the usual book sites, Amazon,…
