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By combining several analytical methods, including machine learning, to assess the diversity of a collection of theropod teeth from the Kem Kem beds, researchers found a tooth that could possibly be assigned to Deltadromeus agilis. https://www.tandfonline.com/doi/full/10.1080/02724634.2024.2311791 https://www.uu.nl/en/news/higher-carnivorous-dinosaur-biodiversity-of-famous-kem-kem-beds-morocco

This tooth is very sharp and resembles Abelisauridae, but it measures 5.9 cm in length, which I have never seen before. Could it be from a different dinosaur?

So, this theropod tooth came in a lot of a bunch of other teeth I bought as part of a box lot of about 20 Kem Kem theropod teeth. Most of it was in pretty bad condition, and there wasn't really provenance attached to them, but I paid literally pocket change for them. But to get back on point, I wasn't sure if this was an Abelisauridae, or a Carcharodontosaurus, possibly an indeterminate theropod. My gut feeling is that it's an Abelisauridae, but I'm not sure, Abelisaurid teeth tend to be much more easily recognizable, and I have a lingering doubt on this one. Measurements are in centimeters. Assuming I did the serration density count right, both sides are 12/5mm or 2.4/mm

I decided to sort through some of the Kem Kem bones I got at the Tucson show, and I think I found several Abelisaurid bones. Please let me know if I got it right (Ifezouane formation, Late Cretaceous, Cenomanian) Here is what I think is a distal tibia Here are some Abelisaurid tibias: A - Quilmesaurus, G - Rajasaurus, I - Pycnonemosaurus @LordTrilobite @Troodon

A very interesting paper authored some notable paleontologists. I was able to see a copy of the pre-proof paper. It describes 2 new cervical vertebrae and also reviews published material that provided an interesting insite into the Abelisauroids of the Kem Kem. Abelisauroids include both Abelisauridae and Noasauridae families. To summarize some of the conclusions: 1) One of the cervicals FSAC-KK-5016 established the presence of a small-bodied noasaurid taxon with similarities to Masiakasaurus of Madagascar. Further discoveries of this noasaurid are necessary to determine if it resembles Masiakasaurus in other aspects of its anatomy, such as a piscivory adapted dentition. One small tooth (GZG.V.19999), described by Richter et al. (2013) as abelisaurid-like was noted as similar to the teeth of Masiakasaurus. If Deltadromeus proves to be a noasaurid, which the paper suggest, then there are at least two noasaurid taxa present in the Kem Kem assemblage. 2) The second cervical an axis vertebra FSAC-KK-5015 is referred to as a small basal Abelisauridae that is neither a Carnotaurinae nor Majungasaurinae. 3) In reference to Richters et al paper (2013) the authors concluded that multivariate analysis may not be suitable for distinguishing dromaeosaurids or abelisaurids, but added that the small sample size (3 teeth for the morphotype: NMB-1671-R; GZG.V.19997; GZG.V.19998) decreased the accuracy of the results. It is possible that the teeth referred to Dromaeosauridae by Richter et al. (2013) are also noasaurid in origin. 4) A review of previously published material was also conducted and the following statement was made "The abelisaurid Rugops from the Eckhar Formation of Niger is here confirmed to also be present in the Kem Kem beds. " very cool... Paywalled https://www.sciencedirect.com/science/article/pii/S0195667119303738 Abelisauroid cervical vertebrae from the Cretaceous Kem Kem beds of Southern Morocco and a review of Kem Kem abelisauroids Robert S. H. Smyth, Nizar Ibrahima, Alexander Kao, David M. Martill FSAC-KK-5016 represents the smallest described dinosaur in the K K (green) FSAC-KK-5015 represents a small bodied Abelisauridae (blue)

Hello, I see a lot of websites that sell abelisauridae teeth and raptor teeth, to me look the same size and shape, how can you tell the difference? (raptor tooth white backround), (abelisauridae tooth yellow backround)

Hello ! I received 2 dinosaur teeth, from Kem Kem (cenomanian or albian). We can not accurately identify the species (if it is possible to identify them?). We think of a species of Abelisauridae, or maybe Dromaeosaurid (Deltadromeus agili?) (For the smallest)? Ideas? Teeth one (smallest): Second teeth :

My favorite dinosaur is the Carnotaurus (hence the name) and I would love to have a fossil of one but I am aware that they are nearly impossible to come by. I was wondering if any of it’s relatives fossils are more common or easier to obtain. Thanks in advance!

OK, I know it's gonna be an Abelisaurid, gotta check with you guys though! Pictures should say it all.

'Last African dinosaur' discovered in Moroccan mine University of Bath, May 3, 2017‎ http://www.bath.ac.uk/research/news/2017/05/03/last-african-dino/ https://www.sciencedaily.com/releases/2017/05/170503213550.htm Morocco dinosaur fossil find 'like winning the lottery' Irvine Times - ‎May 4, 2017‎ http://www.irvinetimes.com/news/15264325.Morocco_dinosaur_fossil_find____like_winning_the_lottery___/ African T. rex was one of last dinosaurs alive before extinction New Scientist - ‎May 3, 2017‎ https://www.newscientist.com/article/2129767-african-t-rex-was-one-of-last-dinosaurs-alive-before-extinction/ Longrich, N.R., Pereda-Suberbiola, X., Jalil, N.E., Khaldoune, F. and Jourani, E., 2017. An abelisaurid from the latest Cretaceous (late Maastrichtian) of Morocco, North Africa. Cretaceous Research. DOI: 10.1016/j.cretres.2017.03.021 http://www.sciencedirect.com/science/article/pii/S0195667116303706 Yours, Paul H.