Charles J. Salcido, PhD
@cjsalcidopaleo.bsky.social
Paleontologist with SWCA and independent researcher. Research is on functional morphology and evolution of extinct animals, especially mammals. Writer for PBS Eons. Worked with the NPS. Opinions are my own.
This #FossilFriday is also Halloween. And since everyone is talking about it, I give you... THE RETURN OF NANOTYRANNUS FROM THE BEYOND THE GRAVE!!! A recent paper brought back the validity of this taxon. So here's a photo of Jane, now referred to as Nanotyrannus in the paper.
October 31, 2025 at 4:32 PM
This #FossilFriday is also Halloween. And since everyone is talking about it, I give you... THE RETURN OF NANOTYRANNUS FROM THE BEYOND THE GRAVE!!! A recent paper brought back the validity of this taxon. So here's a photo of Jane, now referred to as Nanotyrannus in the paper.
This #FossilFriday, I'm showcasing the Ceratosaurus on display at the Dinosaur Journey Museum in Fruita, CO, that I saw 2 weeks ago. It was my first time back at this museum since I was 12 years old at their day-dig. It's funny to think about when I was a kid vs where I'm at now as a paleontologist
April 18, 2025 at 7:40 PM
This #FossilFriday, I'm showcasing the Ceratosaurus on display at the Dinosaur Journey Museum in Fruita, CO, that I saw 2 weeks ago. It was my first time back at this museum since I was 12 years old at their day-dig. It's funny to think about when I was a kid vs where I'm at now as a paleontologist
This #FossilFriday, I present this skeleton of the bear-dog Amphicyon from @natural-history.bsky.social in celebration of news that one of my PhD dissertation chapters has been accepted for publication!
April 4, 2025 at 7:13 PM
This #FossilFriday, I present this skeleton of the bear-dog Amphicyon from @natural-history.bsky.social in celebration of news that one of my PhD dissertation chapters has been accepted for publication!
A Cochliodont tooth (possibly Sandalodus?) from Indiana University's Paleo Collections. This was a shell-crushing Holocephali (a group of cartilaginous fish related to sharks) from the Mississippian of Indiana that is a part of a shark fossil inventory project with undergrad workers #FossilFriday
February 7, 2025 at 7:29 PM
A Cochliodont tooth (possibly Sandalodus?) from Indiana University's Paleo Collections. This was a shell-crushing Holocephali (a group of cartilaginous fish related to sharks) from the Mississippian of Indiana that is a part of a shark fossil inventory project with undergrad workers #FossilFriday
People who know me know that I'm more a vertebrate paleontologist, but recently, I've been looking at inverts. This #FossilFriday I was at Hanover College scanning conulariids. These are enigmatic mainly Paleozoic fossils possibly related to sea anemones. They look like 4-sided ice cream cones.
January 25, 2025 at 1:32 AM
People who know me know that I'm more a vertebrate paleontologist, but recently, I've been looking at inverts. This #FossilFriday I was at Hanover College scanning conulariids. These are enigmatic mainly Paleozoic fossils possibly related to sea anemones. They look like 4-sided ice cream cones.
For #FossilFriday I wanted to showcase this Edestus tooth whorl from the Pennsylvanian/Late Carboniferous of Indiana. Edestus was a holocephalin fish (a group of cartilaginous fish that includes the modern rat fish) that would have had a tuniform body similar to lamnid sharks
January 17, 2025 at 11:02 PM
For #FossilFriday I wanted to showcase this Edestus tooth whorl from the Pennsylvanian/Late Carboniferous of Indiana. Edestus was a holocephalin fish (a group of cartilaginous fish that includes the modern rat fish) that would have had a tuniform body similar to lamnid sharks
Another new Indiana University EAS paleo display case for #FossilFriday, but this time for our vertebrate collection! Big thanks again to undergraduate and graduate students. My favorite is the Paleozoic at the bottom, highlighting mostly fossils found in Indiana such as sharks and tetrapod tracks.
December 13, 2024 at 5:40 PM
Another new Indiana University EAS paleo display case for #FossilFriday, but this time for our vertebrate collection! Big thanks again to undergraduate and graduate students. My favorite is the Paleozoic at the bottom, highlighting mostly fossils found in Indiana such as sharks and tetrapod tracks.
For this #FossilFriday, I wanted to showcase Indiana University Earth and Atmospheric Sciences Department's new paleo invert display on the 5th floor. Big thanks to the undergraduate and graduate students who helped make this possible!
December 6, 2024 at 8:35 PM
For this #FossilFriday, I wanted to showcase Indiana University Earth and Atmospheric Sciences Department's new paleo invert display on the 5th floor. Big thanks to the undergraduate and graduate students who helped make this possible!