It’s Fossil Friday! Let’s swim back in time about 85 million years to the Late Cretaceous Period to meet Xiphactinus, a gigantic predatory fish. This species could reach lengths of 17 ft (5.2 m) and was capable of swallowing a 6-ft- (2-m-) long fish whole!
The Museum’s Xiphactinus fossils come from Logan County, Kansas, which is home to 70-ft- (21.3 m-) tall sedimentary formations. Though that might not sound like an ideal home for an ocean-dweller, the entire area was covered by a vast inland sea during the Cretaceous.
We know little about the deep sea environments of the Mesozoic but one place where we can get a glimpse into this world is the Münsterland basin. We have here several localities that preserved shallow and deep water animals side by side, caused by underwater landslides. These carried stuff from the rim of the basin and buried them in the deep with other material that was down there.
Tachynectes here is a very early lanternfish. Flattened lanternfishes are no longer a thing these days and we actually have lanternfishes from these localities that show their photophores preserved. We know where they glowed!
Spinosaurus drama is cool and things, but do you know what's even cooler? Better fossils of animals that lived with Spinosaurus!
There is a new specimen of Concavotectum currently on display in Tuscon. BigSkyFossils took some photos of it and I had to doodle it! It's been a while since I did a tselfatiform and now we have finally an idea how the postcranium looked like!
So far we only had a few fragments and this pretty good skull. As some people noted though, the eye is reconstructed in the wrong corner.