Had a pretty good time at the biannual collecting event in Bowmanville (east of Toronto). Although the first half was a complete and frustrating bust, the second half was when our luck turned. I've some prep work to do, but some field fresh finds should do for now.
Here's our crew. It seems that ever more people are coming out to this event. The quarry is so vast (six levels), that even with this many collectors poring over the blast piles there is plenty of space and opportunity to make some lovely finds. It's also nice to talk shop with other fossil-hounds. The main attraction are trilobites, and particularly large Isotelus.
Finding a complete Isotelus pretty much necessitates scanning and splitting through a lot of rock that are filled with moulted partials, some of which can be quite large. Pictured above is a few of the larger partials I took home, and one can imagine how big they might have been complete. And this is nowhere near as big as these can get.
Midway through the day, our luck started to turn. Pictured here is a Leviceraurus mammiloides of some significant size. Although the left genal spine is missing, the right eye is in the impression side, and I can prep out the pygidium to expose the long spines.
A not so great Ceraurus. As an added thrill, they can also be quite flaky. I can use this one for prep practice. The cephalon and thorax should be relatively complete.
Poorly lit photo, but I'll retake it once I give this one a quick blast with the air eraser. A fully intact, perfectly round and enrolled Flexicalymene croneisi -- a new species in my collection. You just have to love the duck-faced look of these.
Possibly a Thaleops on the left, and a Flexi on the right. Both obviously require some prep.
What I really came for: Isotelus! This being my third trip to Bowmanville, I had never found a complete one. This one has its head tucked into the matrix, so there is a chance the eyes are intact. In most cases (when the bug is exposed), the eyes are sheared off from blast damage or weathering. On the right was a small consolation specimen I picked up in case I didn't find a full one.
But wait, there's more! Well, not so much more in terms of trilobites (I have a few others I haven't added here yet). This big nautiloid chunk was worth taking home.
It's always good to break rock with good folks. It is always a great pleasure to meet up with Kevin B. with whom I've had collecting adventures. A professional preparator by trade and trilobitologist, I had entrusted him with a very delicate and challenging preparation job of three notoriously thin-skinned, enrolled Greenops widderensis from Arkona. The genal spines and lappets were flying. In the process of prep, Kevin found a fourth one on the plate. This is incredible and painstaking work. Here are a few other closeup images:
So, in all, a great time in the Lindsay Formation. And now the prep season begins...