A Threasher Shark breaching off Costa Rica. Knocking off cookiecutter sharks cutting chunks off it. Zoom in and look at base of right pectoral fin and base of caudal fin.🦈 Thanks Casey Klein for posting on Facebook.
Jim Kirkland
17.9K posts
Jim Kirkland
@Paleojim
State Paleontologist for Utah; exploring and promoting the history of life in our southwestern deserts for the public good and the wonder of it all.
- Ai has no place in science or in scientific illustration!!!
- I tell you, Protoceratops used burrows as well to defend against Velocirapter.🔥 A boar slipping smoothly into its burrow to escape a pack of wild dogs
00:00 - Amazing microCT skeletal image. onlinelibrary.wiley.com/doi/full/10.10…
- Replying to @TIMEThose of us how have paid attention to AOC's questioning during hearings are impressed by her preparedness and skill in her questioning, while others grandstand, she brings forth new and pertinent info. Glad she could not afford law school. We need her in congress!
- d to share on #FossilFriday Torosaurus latus that Amanda Cantrell-Suazo & Tom Suazo's Badlands Sci. Exp. LLC, collected in Naashoibito Mbr., Ojo Alamo Fm. San Juan Basin, New Mexico, has been unveiled at the Knuthenborg Mus of Evolution, Denmark! Mark Loewen of @NHMU describing
- Been thinking polacanthines when I should be working on the Mancos nomenclature report. Basically, I'm thinking that the standard Gastonia like models at 5 meters of so have a basic, leave me alone vibe. The giant taxa; I'm still working on that. Remember this is a hypothesis!
- Meet Sachicasaurus “The newest giant pliosaur, an almost 10 m (35 ft) goliath from E. Cret. 130 Ma from what is now Colombia. Sachicasaurus was a serious beast, but ITTY BITTY flippers compared to other pliosaurs (normaly size of head). See Pliosaurus pic. SLOW...ambush predator?
- Warm water carries less oxygen. Hot water even less. Global Cretaceous anoxic events were in large part driven by warm ocean temperatures, as was the loss of coral reefs in favor of rudistid clam reefs. @utahgeologicalTens of thousands of fish washing up on the Texas shoreline. Totally normal. There’s no climate emergency or anything. Move along.
- Going through the thousands of pictures I shot on my 2017 trip to China, so... here is a spectacular skeletal specimen of Microraptor at Beijing Mus of Nat Hist PH1084 (note, not one in Li manuscript). #FossilFriday
- Assuming this is the first rapid prototyped Utahraptor skull by Galentia Studios.
