Please see the text and links in last week’s web entry. You’ll all learn soon that there are problems with homeomorphy among brachiopods. (A product of evolutionary convergence.) The linked paper provides one example of many. Remember that many brachiopod taxa are distinguished by internal features we don’t always see.
I hope you’re keeping up with Wooster’s Fossil of the Week!
Ordovician strophomenid brachiopod encrusted with bryozoans and craniid brachiopods.
Geology in the News –
You may have heard that mammoths are about to be cloned. Fake news!
Great music video on evo-devo. Starts with hox genes. “This is how we go from single cells to people.” The channel A Capella Science is highly recommended!
Cnidarians in the news! Sleeping jellyfish, even though they have no brains. It is also a great example of how science is really done.
Could an impact have caused the Paleocene-Eocene Thermal Maximum (PETM)? There is new evidence of glass fragments and charcoal in sediments 56 million years old. This could solve a mystery about the 5-8 degree centigrade rise in global temperatures then, but we’ll see how this evidence survives later testing.