A Labocania aguillonae roars at a chasmosaurine while a group of Tlatolophus flee in the background.Illustrated by Andrey Atuchin
Posted on 11/17/2024 6:11:22 PM PST by SunkenCiv
Because Labocania is based on fragmentary material, its affinities were uncertain. Molnar noted certain similarities between Labocania and tyrannosaurids, especially in the form of the ischium which features a low triangular obturator process and a circular lateral scar on the upper end, but he did not assign Labocania to any family, placing it as "Theropoda incertae sedis". Molnar especially compared Labocania with Indosaurus and "Chilantaisaurus" maortuensis, later made the separate genus Shaochilong. Labocania was considered as a possible tyrannosauroid in the 2004 review of the group by Thomas R. Holtz, Jr., who, however, pointed out that the similarities with the Tyrannosauridae were shared with the Coelurosauria in general — no tyrannosauroid synapomorphies were present — and that Labocania also showed some abelisaurid traits such as the thick frontals and a reclining quadrate. On the other hand, the L-shaped chevron and the flattened outer side of the second metatarsal indicated a position in the Tetanurae.
A 2024 study has named a second species of Labocania, which is much less fragmentary and gives a much better placement of the genus. The new species, L. aguillonae, was described with a partial femur, metatarsal, and other fragments across the body. The morphology of the specimen solidifies the genus's classification as a tyrannosaurine tyrannosaurid in the tribe Teratophoneini. The current closest genera to Labocania is Teratophoneus, Dynamoterror, and Lythronax.[1] Interestingly, the phylogeny places Nanotyrannus as a non-tyrannosaurine tyrannosaurid, despite it commonly being accepted as a junior synonym of Tyrannosaurus. Alioramini, a tribe usually put within Tyrannosaurinae, was placed outside of Tyrannosauridae as a sister taxon. Results of the phylogenetic analysis are shown below:
(Excerpt) Read more at dinopedia.fandom.com ...
A Labocania aguillonae roars at a chasmosaurine while a group of Tlatolophus flee in the background.Illustrated by Andrey Atuchin
Thanks for this link!
Bkmk
I swear these paleontologists were the kids who never finished jigsaw puzzles or, would finish the outline, a couple small patches inside of a 1,000-piece puzzle and call it quits.
Are they SURE of the rest of the dinosaur based upon a half dozen bone fragments?
Did Kamala write this?
It sounds much better when read from a teleprompter…
Comparative anatomy was pioneered by Cuvier, who was a Young Earth Creationist of a few hundred years ago, but he did a nice job anyway.
“Did Kamala write this?”
She edited it
someone asked ChatGPT to “write something sciencey”
Wow, big words. No calculus required.
It looks like it.
And in the background, you can see Nancy Pelosi with a glass of wine.
:^)
I was just about to say that!
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