And after a much too long hiatus this dinosaur blog has come out of extinction! Over the last few weeks the volunteer program has exploded in numbers and we are getting through literally tons of material. The pictures you see below are a project being worked on where fragments from the field are being glued back together. A volunteer must test each side of each piece together to see if they fit. 3d puzzles can be extremely difficult, especially when we are unsure if we have all of the pieces, or even if they come from the same animal!
So in last weeks excavation we found and exposed more of the turtles shell! Another exciting find with this is the possibility of a plastron, the underside of the turtle shell that is a bit like a breastplate! A femur or humerus may also be present, but the sediment covering it and my lack in experience with turtles leaves it up to question for now. Let me know what you think of the fossil and if there is anything else you want to see from the lab!
Back in the lab again this week with Several volunteers. Work began again on the fossil turtle, which has produced a shell! So far the shell looks fairly complete, and is the outline of it can be seen in the pictures below. A limb element seems to be sitting on top of the mass, so there is hope for more bone in there as well. This is the first turtle I have worked on and it’s really starting to get exciting! If you have any questions, comment below!
It’s another week in the lab and everyone is busy working on their projects. This week a turtle specimen was started that I will be posting updates on weekly. More info news to come next week!
It’s prep day again and the crew is back to work on the fossils. Here is an image of a bone fragment from an Edmonton bonebed a it’s obvious when people say that some fossil preparation is like putting together a puzzle. This fossil should be glued together by the end of the day and a follow up picture will follow. Enjoy!
This is one of several ribs that were worked on this summer from a Theropod called Daspletosaurus. This cretaceous predator could reach lengths of approximately 8-9 meters and lived between 77-74 million years ago.
The ribs from this specimen are unique in the fact that many of them show signs of healed bone where a fracture had occurred. This is in fact a belly-rib called a gastralia, which were ribs that were suspended in the flesh on the underside of a theropods body. This shows evidence that the dinosaur injured itself, either through falling or interactions with another dinosaur, and broke several of its belly-ribs. He survived however and the bone healed, producing a large callus where new bone joined the two broken pieces back together
I will be posting more pictures of other ribs up soon, but for now enjoy these few pictures and have fun pondering. How do you think it injured itself? post your answers in the comments below!
It’s the opportunities to work on specimens like this why I followed through in pursuing paleontology. This dromaeosaurid claw was found in dinosaur provincial park and is roughly 70-75 million years old
These bones I worked on quickly today show a rib fragments that have evidence of being preyed upon. These fossils have an impression of a scar left by a predatory dinosaur!
The pictures below show the steps of bringing a fossil from the field into the lab. This Hadrosaur Femur discovered during the 2011 field season is currently in the lab waiting to be prepared. It took four people to carry the casted femur from where it was discovered to a road where it could be loaded into a truck and taken home
The fossil is wrapped in burlap and plaster to create a protective cast around it while it is being transported and prepared
An international crew of researchers have released their findings on 300 million year old daddy long legs spider relatives! check out this link for all the information on how this group may have first evolved and what has lead to their overall success to this very day