Search the Community
Showing results for tags 'marshosaurus'.
-
Hello, I have an old collection from a friend. The theropod dinosaur teeth from Morrison fm, Emery County, Utah. I was wondering where it will be distributed? (Marsh?Allo? or something else) Any insight on this would be greatly appreciated CH:1.5cm CBL:0.6cm MC:5/mm DC:5/mm mesial carina seems to end at bottom ~2/4 of the tooth Thank you for help
- 8 replies
-
- morrison fm
- marshosaurus
-
(and 1 more)
Tagged with:
-
Two in one post: possible Allosaurus tooth and Marshosaurus tooth
AJ the Tyrant posted a topic in Fossil ID
I’m wondering if these two teeth (both are from the Morrison Formation in Moffat County, Colorado) have been identified correctly as Allosaurus and Marshosaurus. Here are the measurements of both: Allosaurus: 4cm long serration count is 10/5mm on anterior and posterior carinae base length is 21mm and base width is 13.5 mm (note from dealer: Please note that the base of this tooth is broken and the transition of enamel to root is not present. The base measurement may have been larger.) Marshosaurus: 4cm long serration count is 18/5mm on anterior and posterior carinae base length is 15 mm and base width is 8mm (note from dealer: Please note that the base of this tooth is very near the enamel to root transition a represents a fairly complete tooth.) The serrations on the anterior keel of the tooth extend two-thirds of the distance from tip to base. Images seem to be weirdly mismatched, but I think it’s pretty easy to tell which pictures match with which.- 3 replies
-
- morrison fm
- colorado
- (and 6 more)
-
I bought this tooth and the seller named this 'Allosaurus', but the serrations are more dense and the mesial carina stops far before the root. Is this a megalosaurid or allosaurid? Anyone can help? The base width/base length = 4.2mm/12.3mm Locality: Morrison formation, Wyoming Distal carina Mesial carina
- 6 replies
-
- marshosaurus
- allosaurus
-
(and 2 more)
Tagged with:
-
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
-
- marshosaurus
- lourinhã
- (and 15 more)
-
Hey everyone, How do you tell the difference between the teeth of theropods from the Morrison formation, such as Allosaurus, Torvosaurus, Marshosaurus, and/or Ceratosaurus? Any information is appreciated! Thanks!
- 1 reply
-
- allosaurus
- torvosaurus
-
(and 4 more)
Tagged with:
-
Small unidentified theropod tooth from Morrison Formation, Wyoming
Sauroniops posted a topic in Fossil ID
Hello there. I recently received a small theropod tooth from the Morrison Formation, without any ID. Part of the tip is missing/worn out. At its longest dimension, the tooth measures 1,1 cm. The serration count (Both mesial and dermal) are 6-7 serrations per mm, and about 18-19 per 3 mm. Anyone who's got a good guess, feel welcome to drop a comment here, cause I have no clue if this is a baby Allosaurus, or a small Marshosaurus, Ornitholestes, Coelurus or something completely different.- 11 replies
-
- 1
-
Marshosaurus bicentesimus jaw
njcreekhunter posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hey everyone, I purchased this fossil that was labeled as a Marshosaurus bicentesimus jaw from the Morrison formation in Wyoming. I wanted to get other opinions on it? Is there enough here to say it's a Marshosaurus jaw? Thanks everyone.- 3 replies
-
- theropodjaw
- marshosaurus
-
(and 1 more)
Tagged with:
-
From the album: Dinosaurs and Reptiles
Lourinha fm, Portugal Piatnyzkisauridae indet. (potentially similar to American Marshosaurus)