Search the Community
Showing results for tags 'megalosauridae'.
-
Howdy all, I'm interested in this Afrovenator abakensis tooth and am curious if it's legit. It was found in the Middle Jurassic Irhazer Shale of Agadez, Niger and is 1.3" long.
- 1 reply
-
- afrovenator
- agadez
- (and 6 more)
-
Possible Lourinha Portugal Marshosaurus-like Megalosaurid Tooth
Kikokuryu posted a topic in Fossil ID
I recently purchased a Theropoda indet. tooth from the Lourinhã Formation of Lourinhã, Portugal. I wasn't expecting much initially since it looked like an incomplete tooth and the seller tends to go the safe route with their IDs if it's too vague. But, the serration count was similar to that of the Marshosaurus-like megalosaurid teeth based on @Troodon's guide on the dinosaurs of Portugal. Maybe it's just wishful thinking, but I wanted to see if anyone else had some input before I slap that good old theropoda indet. label on the display. The distal serrations is split down the middle. Mesial serrations were kind of hard to count, but they are at least 20/5mm, the distal serrations are 16/5mm. Not sure if the split serrations are messing with the count, but it should be around that 16/5mm after counting it multiple times with various pictures. I don't know how much further the tooth would have gone had it been complete, but I think the mesial serrations do appear to end before reaching the base. Although I don't know if those serration densities still overlap with other theropods like Allosaurus. Split distal serrations and shape of the base which could be slightly off due to the split serration. Distal serrations. Mesial serrations. Mesial serrations ending? Close up on denticle shape on distal side.- 7 replies
-
- 2
-
- dinosaur
- indeterminate
- (and 15 more)
-
Hi everyone, I have a theropod teeth that I need help identifying. This tooth first came from a reseller from Morocco in 2019 (before Talsint teeth flooded the market). He promises this came from a Boulmane digger, and calls it a Jurassic tooth. Irregardless of whether this is a Jurassic tooth or not, the reseller is reliable when it comes to locality I have tried identifying this tooth but all my best guess is that it's a Megalosauridae indet. Here are its info: CH: 26.1 mm CBL: 13.7 mm CBW: 8 mm Distal denticle count: 13/5mm on mid line Mesial denticle count: 17.5/5mm on mid line Unique trait 1: Well visible transverse undulations Unique trait 2: Mesial carina ends well above the cervix. Even accounting for the worn tip, it's half the length of the distal carina Unique trait 3: Distal denticles significantly larger than mesial ones (DSDI > 1.2) I read "The distribution of dental features in non-avian theropod dinosaurs: Taxonomic potential, degree of homoplasy, and major evolutionary trends" but I am still unable to confidently assign a theropod family to this tooth. The lack of locality data from Boulmane further hurts the ID. Here are some of the relevant pages I highlighted from the paper: Regarding denticle size: Regarding the mesial carina terminating above the cervix: Regarding the transverse undulations: A compilation of features about my tooth and the potential IDs for it: If you have any insight regarding my tooth, I would love to hear it. Thank you
-
From the album: Dinosaurs and Reptiles
- 3 comments
-
- itat formation
- jurassic
-
(and 2 more)
Tagged with:
-
From the album: Dinosaurs and Reptiles
-
- afrovenator
- jurassic
-
(and 3 more)
Tagged with: