What do you think of when someone mentions the Jurassic or Cretaceous ages? Most likely you will immediately think of dinosaurs and other large reptiles such as pterosaurs. Maybe you think of the movie Jurassic Park, filled with dinosaurs and lush vegetation. This time has become known as the Age of the Reptiles and aptly so since... Continue Reading →
Kirkdale Cave Hyena Den: A Young Earth Puzzle Since 1821.
Imagine you live in northern England and you are out exploring and come upon a hidden cave entrance. Upon climbing down into the cave you discover hundreds of bones belonging to large mammals. At first you think the bones represent local animals since there are some deer, rabbits, weasels and wolves but soon it becomes clear... Continue Reading →
NH Notes: An Ode to Coprology
"Approach, approach, ingenuous youth, and learn the fundamental truth: The Noble science of Geology Is founded firmly in Coprology. For ever be the Saurians blest, Who left us this diluvian test. I claim a grand coronam lauri, For these, Thesauri of the Sauri."
William Buckland: Minister and Geologist Grappling with Fossil Feces, Deep Time and the Age of Reptiles
The Reverend William Buckland (1784-1856) was one of the last in a line of influential natural theologians following in the footsteps of John Ray (late 1600s) and William Paley (late 1700s). I recently gave a seminar in which I explored a number of significant turning points (figure below) in the history of discovery of deep time and the awareness... Continue Reading →
Geological Context V: Human Fossil Footprints Found Below Ice Age Deposits
A story is breaking today of a significant fossil find made almost a year ago but kept under wraps until the data could be properly evaluated. What has now been revealed is that over 100 footprints were found in newly uncovered rocks along a shoreline of England. Study of these footprints has led to... Continue Reading →
NH Notes: Curiosity Update – Amazing Views Inside A Crater
When I last updated you on the excursion that the Curiosity rover has been making across the floor of Gale Crater on Mars I noted that the images it has been beaming back had been getting rather routine. But the rover has slowly been moving downhill toward what seems more and more likely to have... Continue Reading →
Juvenile Dinosaurs Found Huddling in a Nest: A Local or Global Catastrophe?
We live in a new golden age of fossil discoveries. It seems that every week a new and dramatic fossil find is revealed. This fossil renaissance can be attributed to the opening up of new fossil sources, particularly China and Mongolia but also South America and to improved technology for retrieving and analyzing fossil remains.... Continue Reading →
NH Photography: Badlands National Park, South Dakota
A visit to Badlands National Park in South Dakota feels a bit like going to see a miniature replica of the Taj Mahal instead of seeing the real thing after you have hung out for a week in Moab UT and traveled around southeastern Utah. But that isn't to say that it isn't worth seeing. On... Continue Reading →
A Tale of Taphonomy: Clam Shrimp Fossils and the Age of the Earth
One of the great privileges of my job is that I get to participate on committees of graduate students. This allows me to get up close and personal with data from sub-disciplines of biology that often extend far from those of my particular expertise. You know by now that I carry a particular fondness for... Continue Reading →
NH Photography: Desert Southwest Scenes
It is cold and snowing outside and it is supposed to get much colder. I feel so far away from when I was standing at the overlook of the Goosnecks of the San Juan River in 99 degree heat taking in the desert southwest. Six month later I'm still sorting through my pictures... Continue Reading →
Desert Varnish: A Crude Marker of the Passage of Time
Anyone who has spent time in a desert has probably noticed many dark streaks or patches on the rocks. I expect that most people simply look at these dark streaks and think they are simply stains like a stain on a cement driveway or that line of rust color running down a wall from a... Continue Reading →
NH Photography: Desert Varnish Around Moab UT
Travel to most any desert region and you will observe black, brown or orange streaks or crusts on the surface of many rocks. These stains on the rock have been called desert or rock varnish. The origins have been scrutinized for many years and still are not fully understood. I will explore some of what... Continue Reading →
Geological Context IV: The Pit of Bones – An Ancient Death Chamber
Down a 43 foot vertical shaft, another 40 foot slope, and buried under thousands of cave bear, lion and lynx bones, lies the partially fossilized bones of at least 30 individual humans. Welcome to a chamber of horrors otherwise known as Sima de los Huesos (the pit of bones). This pit is but a small... Continue Reading →
Cosmogenic Dating Methods Allow Estimates of Erosion Rates on Mars
Just how fast are some rocks on Mars eroding? A few months ago I asked a Martian rock that question (see: My Interview with a Martian: A Story of Origins) and I was not given a very satisfying answer. Well, that rock can be excused for being a bit confused about time given how boring... Continue Reading →
Piles of Fossil Poo: Providing a Peek into the Past
One headline reads “Giant Prehistoric Toilet Found” another refers to the discovery of an ancient latrine. Don’t know how I missed those a few weeks ago. Surely had I seen that headline I would have had to clicked on it to find out what that was all about. The actual title, The oldest known communal latrines... Continue Reading →