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Found 2 results

  1. Greetings. Came across this Dipnoan tooth, (and presumed armor plate) deep in a rock we were searching through. Just wondering about the prevalence of Devonian Dipnoan evidence in our area; especially the Dundee or close by formations.
  2. Hi all, I’m not sure if I’ve posted this find before, but I figured I would anyway because I believe it warrants it’s own thread. I found this find a few years back at one of the localities I most consistently collect at, which is a shaly exposure of the Connelsville Sandstone in western PA. It usually preserves plants quite well, and was described by W.C. Darrah back in the 60s. It has also produced some very early examples of Walchia, an early conifer. However, it is not well known for vertebrate fossils, as sandstones don’t seem to be the preferred type of rock where vertebrates are found in the area. If you’ve seen my other posts you’ve probably realized that most of the time vertebrate fossils are restricted to shales and limestones, often closely related to coals. And in the shales especially, concentrations of material are usually lag deposits and do not represent associated remains. Here I have something different. Its a small jumble of bones, with no diagnostic features whatsoever. However I can rule out actinopterygian material because it lacks the thick shiny scales so characteristic of this group. I’m almost certain it’s not tetrapod material as (1) they are incredibly rare and (2) the ribs seem to be too thin. I’m also fairly confident that it represents a single individual as the bones are locally concentrated and I’ve never seen them before from this locality. I’ve found bones like these before in other more characteristic deposits, although they are never articulated. I’m relatively sure that they come from some sort of sarcopterygian, possibly a dipnoan or coelacanth. I would be very happy if anyone could shed some light on the general grouping of this fossil. If not, then just appreciate it as a random jumble of bones from a not very often seen locality. As always, stratigraphy: Connelsville sandstone Casselman Formation Conemaugh Group And age: Late Pennsylvanian (Stephanian/Missourian ~302 MYA)
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