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- A new paper: Two problematic sclerobiont species that survived the Ordovician-Silurian extinction event
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- Dr. Nicolás Young – Our 44th Annual Osgood Speaker
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- A new paper describing the feeding apparatus of Silurian cornulitids from China: More evidence supporting placement of this group in the lophophorates
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Tag Archives: fossils
Another dusty day of fieldwork in the makhtesh
MITZPE RAMON, ISRAEL–It was a little warmer today in Makhtesh Gadol, but the sun was still obscured by the dust blown across the southern Mediterranean from the Sahara Desert. I may have an innate tolerance for dust from my childhood … Continue reading
A dusty but successful start on field work in southern Israel
MITZPE RAMON, ISRAEL–Melissa Torma, our friend Yoav Avni (Geological Survey of Israel), and I just ended a productive first day in the field. The two of them are shown above in classic paleontological poses. They are collecting fossils from Subunit … Continue reading
Wooster Geologists in southern Israel for Spring Break fieldwork
It’s a low-light, iPad photo, but at least it shows Wooster geology junior Melissa Torma enjoying a fine meal in the Hotel Ramon of Mitzpe Ramon, deep in the Negev of Israel. We arrived here this afternoon after a 22-hour … Continue reading
Wooster’s Fossil of the Week: An ichthyosaur vertebra (Middle-Late Jurassic of Wyoming)
It’s only half a bone, but the above is one of my favorite fossils. This is a vertebra of an ichthyosaur, identifiable by its figure-8 cross-section. It is from the Sundance Formation (Middle-Late Jurassic) of Natrona County, Wyoming … and … Continue reading
Wooster’s Fossil of the Week: an encrusted nautiloid (Upper Ordovician of Kentucky)
Two fossils this week in our series. The large segmented cone is a bisected nautiloid cephalopod from the Upper Ordovician of northern Kentucky. The original shell (made of the mineral aragonite) has been dissolved away, leaving the sediment that filled … Continue reading
Wooster’s Fossil of the Week: A holey brachiopod (Lower Cretaceous of southeastern Spain)
This striking and unusual brachiopod is Pygites diphyoides (d’Orbigny, 1847) from Hauterivian (Lower Cretaceous) of Cehegin, Murcia, Spain. Wooster acquired it through a recent generous exchange of brachiopods with Mr. Clive Champion in England. I had heard about this brachiopod … Continue reading
Wooster’s Fossils of the Week: star sand (Recent of southern Japan)
Yes, that “Recent” in the title was a clue that these are not actually fossils, but the little beauties fit the spirit of our series. This is sand from an unknown island beach in southern Japan. The spotted star-shaped grains … Continue reading
Wooster’s Fossil of the Week: An asteroid trace fossil from the Devonian of northeastern Ohio
It is pretty obvious what made this excellent trace fossil: an asteroid echinoderm. (The term “asteroid” sounds odd here, but it is the technical term for a typical sea star.) The above is Asteriacites stelliformis Osgood, 1970, from the Chagrin … Continue reading
Wooster’s Fossil of the Week: A mysterious sponge (Late Ordovician of Ohio)
I’ve been collecting and studying fossils from the Upper Ordovician of the Cincinnati region for three decades now, but I’ve never seen another specimen like the one pictured above. An amateur collector, Howard Freeland, generously donated this rock to Wooster … Continue reading
Wooster’s Fossil of the Week: A syringoporid coral (Lower Carboniferous of Arkansas)
This specimen was collected from the Boone Limestone (Lower Carboniferous) near Hiwasse, Arkansas. It is a species of Syringopora Goldfuss 1826, sometimes known as the organ-pipe coral (but not the real organ pipe coral!). Syringoporids are tabulate corals, a group … Continue reading