Thousands of dinosaur footprints have been found on a steep mountain slope in Denali National Park in Alaska. These are not the first dinosaur tracks to be found in Denali but the size of the tracksite - at least 500 by 150 feet - and the exceptional preservation of the tracks makes this a notable... Continue Reading →
Can you imagine the world’s oceans filled with carnivorous reptiles? Dinosaurs are the most famous members of the age of the reptiles. However, many of the original reptilian fossil discoveries that initiated the idea of the age of reptiles were not dinosaurs. They were instead reptiles that lived in the sea.
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 →
Our perceptions of the age of an object are frequently based on our common experience but I have found that for many people those common experiences are of little help when it comes to examining objects for which a person has no experience at all. A couple of years ago this really hit me as... Continue Reading →
Imagine trawling for fish and when you pull up your nets you find a massive bone or a huge tooth along with your catch. For over 100 years fishermen in the North Sea between Britain and Denmark have found such items in their nets but it wasn’t until the 1980s that their value, monetarily and... Continue Reading →
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 →
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 →
A mummified fossil of common species of hadrosaur was found recently in South Dakota that showed that this particular hadrosaur had a rooster-like fleshy comb on its head. Many hadrosaurs have exotic extensions of their cranial bones but this evidence that even the “boring” hadrosaurs had fleshy projections suggests that the hadrosaurs were an even... Continue Reading →
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 →
What museum can you go to where you can see real dinosaur bones, you don't pay any fees, you can touch all the exhibits and there are no security cameras watching your every move (at least I don't think there are:-)? The answer is The Mill Canyon Dinosaur Trail near Moab, Utah. This outdoor "museum"... Continue Reading →
Family vacation with the Duffs always includes some geological sights. In 2007 we visited Prince Edward Island and had a wonderful time but the there just wasn't enough geology there to satisfy my curiosity so I took us on a 2 hour detour in Nova Scotia. After a lot of "are we there yets" and... Continue Reading →
What happened to huge dinosaur eggs that were either abandoned or broke prematurely? You might think that this is a question that is impossible to answer, but dinosaur eggs have been discovered with intriguing evidence of scavenging of various forms. I recently came across a report from 2011 that I thought was especially interesting... Continue Reading →
It has been a while since I've been able write. There has been quite a bit of news the last two weeks and I thought I would briefly comment on a few items that are relevant to my most recent posts: The Salt Chronometer Since I published my series on the salty seas (Part I,... Continue Reading →
Do places on Earth exist where annual records have been stored for tens of thousands of years and can be accessed today? Ice-cores and tree rings can preserve long records of yearly events but some of the best records come from layers of sediment underlying some lakes which, if formed under the right conditions, can be read like the annual rings of... Continue Reading →
A reader recently brought the articles linked below from a Seventh Day Adventist (SDA) website to my attention. I found them interesting not just because they present a good overview of the challenges that the Greenland ice cores present to young earth creationism but because it raised my own awareness about current discussions in the... Continue Reading →
Naturalis Historia 