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9 January 2012
‘Bugs’ I saw in South Africa
Here is a collection of creepy-crawlies I saw in South Africa: Big grasshopper/katydid orthopteran: Another big orthopteran (“locust”?), obviously beefier than the previous one: Beach roach (Blattodea): Mating true bugs (hemipterans): Here’s a big snail, too: And best of all? This solpugid! Solpugids are arachnids, but they are not spiders. Along with vinegaroons, scorpions, pseudoscorpions, tailless whip-scorpions, ticks and harvestmen (“daddy-longlegs”), solpugids roam the world as effective predators but I’ve …
2 September 2011
Friday fold: duplex structure in the gastropod limestone
The Friday fold is a gorgeously deformed “duplex structure” in Mesozoic limestones of southwestern Montana.
4 June 2010
Straight nautiloid fossil
It seems I forgot to show this fossil when I found it in February of last year with my MSSE advisor John Graves. We were out in the Needmore Formation of the Fort Valley then. The Needmore is a formation I visited again yesterday with some colleagues in other outcrops further to the west. In shade (penny for scale): In sideways-angled sunlight (thumb for scale): I’ll debrief yesterday’s field trip …
25 February 2010
Lola → ammonite
Seeing my cat in this posture: …made me think of this: Where did those hind legs go?
Callan Bentley is Associate Professor of Geology at Piedmont Virginia Community College in Charlottesville, Virginia. He is a Fellow of the Geological Society of America. For his work on this blog, the National Association of Geoscience Teachers recognized him with the James Shea Award. He has also won the Outstanding Faculty Award from the State Council on Higher Education in Virginia, and the Biggs Award for Excellence in Geoscience Teaching from the Geoscience Education Division of the Geological Society of America. In previous years, Callan served as a contributing editor at EARTH magazine, President of the Geological Society of Washington and President the Geo2YC division of NAGT.