Search the Community
Showing results for tags 'cretaceous'.
-
Found this tiny fragment on a trip to Big Brook yesterday. I've been visiting Big Brook for a long time, and have never come across anything like it. Appears to be a small shard (about .5x1cm) of bone or enamel with a scale-like hexagonal structure on one side, and a bony texture on the other.
-
From Burches Ferry, outside of Pamplico, South Carolina. Wondering how far down it can be taxonomically ID'd. Found in association with many belemnites. Thanks!
-
Hey all, Could I get another set of eyes on this (circled tooth)? I found this probably 2 years ago at this point in the cretaceous exposed Big Brook. I have had this labelled as "Enchodus" but relooking at it it seems a little off with my other Enchodus teeth. Is this just a weathered Enchodus? Is it simply a different tooth than the fang and curved tooth pictured along side it? Or am I off by what fish this came from? Appreciate the second set of eyes!
-
Claw-shaped fossil found in a Maastrichtian stratum in Limburg, the Netherlands.
JanHuizman posted a topic in Fossil ID
Need help identifying this fossil. I suppose it could be a fish tooth or dermal denticle.
- 29 replies
-
- 1
-
-
- aquatic
- cretaceous
- (and 2 more)
-
.thumb.jpg.f7b6f55fad7faf2f9f8381b014229b7d.jpg)
Burmite Inclusion: Very Unusual Fibers within Insect Head
Biotalker posted a topic in General Fossil Discussion
There are a lot of unusual and unidentifiable objects in burmite that I have seen over the years. This is clearly an insect head, with eyes and jaws clearly visible, but through the transparent exoskeleton is this wild brown fibrous design. Is it due to some head structures like muscles or some weird random occurrence. Without considerable research, I don't know. Do you have any ideas?
- 3 replies
-
- 1
-
-
- burmite (burmese amber)
- cretaceous
- (and 1 more)
-
Today: fossil hunting in Cretaceous sediments of the Netherlands. Very good weather (warm) and good finds. Including one belemnite phragmocone (internal cast)! These fossils are from the early early Maastrichtian or latest late Campanian (70-67 mya and/or 70-68 mya). Names are included. Only the brachiopod/bivalve I don't know the species name.
-
- 6
-
-
- belemnites
- chalk
- (and 6 more)
-
What you guys think about this tooth? For me- it's a Hexanchidae tooth fragment, but it also smillair to Pseudocoracidae. Nasiłów, Poland Greensand, Mastrichtian/Danian
-
I have a few more teeth that I would like confirmation/correction on my ID's. These are also from the Ozan Formation (Cretaceous - Campanian) of North Texas, near the North Sulphur River. The bulk of the small teeth (all less than 7mm) I have picked from the matrix that have cusplets primarily fall into Scapanorhynchus or Cretalamna (with a few other genera, but probably not important here). The teeth shown below I believe to be one of these two genera, but I am uncertain due to a combo of characteristics, so I am asking for some help in deciding what they are or if they are indeterminate (or if they are something else, that is fine to). The first batch are four teeth that I am waffling between Cretalamna appendiculata or Scapanorhynchus texanus lateral teeth. The root shape and cusplet shape look more like the other Cretalamna I have (these have the more triangular cusplets I associate with Cretalamna as opposed to the pointier ones I tend to see on Scapanorhynchus), but they definitely have a nutrient groove so I'm uncertain. What else would/should swing me one way or the other? Any opinions would be appreciated (even a whole different shark if warranted). The second batch I think are Scapanorhynchus, but they are much narrower with less flared roots than other anteriors I have. And they don't look like the symphyseal (or close to the symphesis) teeth that I have seen in publications or discussed on here is some threads. I suppose I should have shown a comparison, but these are really tiny, skinny teeth relative to other small S. texanus teeth I have. Thoughts? Thanks for your help. Mike
- 13 replies
-
- 2
-
-
- campanian
- cretaceous
- (and 3 more)
-
I found this mystery “thing” in a Late Cretaceous formation that preserves original shell material. I have no idea where to begin when it comes to an identification. It appears hollow. My only guess is some type of annelid, but it is much bigger than the usual candidates of Serpula or Hamulus. Any help would be greatly appreciated.
-
I am wondering if the larger fragment is a fossil, possibly half of tooth, found about 8ft down in glacial till, during a pond excavation, smaller tooth is probably shark, but may be bony fish. I have collected cretaceous sharks teeth and ammonites from a local source ( about 6-8 miles away) removed from an iron ore mine in the 1930's, so I suspect these are of that age, picked up and moved by glaciers during last ice age. So is the larger piece a fossil or odd shaped rock?
-
Limburg (the Netherlands) Cretaceous and other fossils
Fossilsforever posted a topic in Fossil Hunting Trips
Today, I went fossil hunting in my area (in the Selzerbeek). I found early Maastrichtian, late Cretaceous fossils (around 70-67 million years old) and one Pleistocene or Holocene tooth (anyone who knows what kind of animal? I suspect a predator). Kind regards, Fossilsforever
- 5 replies
-
- 1
-
-
- belemnites
- cretaceous
- (and 4 more)
-
Hello everyone, I have a set of teeth from marine sediment of campanian age from the middle east. After many tries to identify, I couldnt pinpoint them exactly. Some of the rays feel like Rhombodus, but they are not a perfect match... I would Really appreciate any help! Please note there are 6 ray teeth total, just different sides. Also the drawing has (some of) the general types I could distinguish. Thank you! Dolev
.thumb.png.1741fee81f6c49c0f90304d699727147.png)
.thumb.png.3150fa183afa2f3660c0a6d0f3326035.png)
- 14 replies
-
- 1
-
-
- campanian
- chondrichthyans
- (and 6 more)
-
Hi all - relatively new here so I hope this format is ok. Just looking for some help with possible IDs on a variety of finds, all from the same area in Central Texas. If anyone has any ideas please let me know. Thanks in advance! FOSSIL #1: FOSSIL #2: FOSSIL #3: FOSSIL #4: FOSSIL #5: FOSSIL #6: FOSSIL #7:
-
Here are the two fragments I found in Ramanessin of what i believe to be mosasaur. the right one im unsure of, i still think its a cretaceous reptile. the left one, I am more certain is a mosasaur. but let me know what you think!
- 3 replies
-
- 1
-
-
- cretaceous
- crocodile
- (and 5 more)
-
.thumb.JPG.3a1778fd4fed4623e03d62617112cc00.JPG)
A Couple of Shark Teeth. Cretodus houghtonorum and Turonian Galeorhinus?
Mikrogeophagus posted a topic in Fossil ID
Hey everyone, Just a quick ID post for help in pinning down what exactly these couple of teeth are. Up first is a broken crown to a tooth I found while processing South Bosque material from Central TX for a pet project of mine. It's Turonian in age and looks similar to some small Carchariniformes teeth I've found at the Whiskey Bridge. Note that when I found this tooth, I had not yet visited the Whiskey Bridge, so I am certain this is not a product of cross contamination. Anyways, it's unlike the other specimens I have from the South Bosque and I am struggling to find a genus that matches its shape other than Galeorhinus. Carchariniformes were present in the Mesozoic and Galeorhinus is known all the way back into the Cenomanian, but ones this old are very rare so I am hesitant. I am wondering if any knows another more likely genus for this Turonian tooth? The second tooth is definitely Cretodus, but I am trying to pin down a species. It came from the Atco (Coniacian) which is known to produce Cretodus crassidens, but I have recently learned of another species, Cretodus houghtonorum, that is also in the area and a candidate. Unfortunately, I do not have access to the paper describing C. houghtonorum so it is difficult for me to figure out how to differentiate the two, but just off of secondhand knowledge I believe this one may be C. houghtonorum because of its more gracile non-ovular cusp. The wrinkling on the labial face is very pronounced and travels farther up the cusp than on my C. semiplicatus specimen from the Cenomanian. On the lingual side, the wrinkling is very short whereas they travel much farther on the C. semiplicatus. The root on the suspected C. houghtonorum is extremely pronounced and almost hangs over the cusp and cusplets. Wish I had a C. crassidens to compare to, but the C. semiplicatus is all I've got for now. Luckily they are very similar in mouth position so it's easy to spot differences. Left is tooth in question; Right is C. semiplicatus specimen Tooth in question C. semiplicatus @ThePhysicist @Al Dente @MarcoSr If you know any other shark experts who could help, feel free to ping them in the replies Thanks!
-
The first report of Chelonioidea cf. Ctenochelys from the Late Cretaceous of the Maastrichtian type area
Praefectus posted a topic in Fossil News
Link: https://www.cambridge.org/core/journals/netherlands-journal-of-geosciences/article/first-report-of-chelonioidea-cf-ctenochelys-from-the-late-cretaceous-of-the-maastrichtian-type-area/2F9C83B052182B5DB2AF792F2AC2F934 -
Hi all - any ideas on this fossil I found today? Google image search is giving me photos of snake skin. Is this coral, sponge, bone, or something else? Thanks!
-
.jpg.4c6ecf7e0748421b12b32299c1050f2d.jpg)
From the album: Texas Cretaceous Fossil Finds: Fish
- 1 comment
-
- 1
-
-
- cretaceous
- enchodus
- (and 3 more)
-
.jpg.b37d3f7fa45421104f29cd5c08db7351.jpg)
From the album: Texas Cretaceous Fossil Finds: Fish
-
.jpg.c90b2083dff0c164f929176bbae84c8e.jpg)
From the album: Texas Cretaceous Fossil Finds: Fish
-
.jpg.3232d70bdf993b4dfd567b1e5a47959d.jpg)
From the album: Texas Cretaceous Fossil Finds: Fish
-
- 1
-
-
- cretaceous
- fish
- (and 3 more)
-
.jpg.8530ace3cb686c035921385f5dd07cb5.jpg)
From the album: Texas Cretaceous Fossil Finds: Fish
-
.jpg.37aee55632579839799ca9b89367a24b.jpg)
From the album: Texas Cretaceous Fossil Finds: Fish
-
- 1
-
-
- aguja formation
- cretaceous
- (and 4 more)
-
.jpg.23c96ec526d3dc88e5fae0dfa8fb14f9.jpg)
From the album: Texas Cretaceous Fossil Finds: Fish
-
.jpg.4804c05a2fc745cb4c4ea844174a8578.jpg)
From the album: Texas Cretaceous Fossil Finds: Fish
.thumb.jpg.f7b6f55fad7faf2f9f8381b014229b7d.jpg)
.png.a2a8a8a535c92d82eb339374fa139f4e.png)
.png.bdea7c68ef7e76302e1c9cdf1e741833.png)
.thumb.JPG.3a1778fd4fed4623e03d62617112cc00.JPG)
.thumb.jpg.51c371f10936bbc883322324e44cc518.jpg)
.jpg.4c6ecf7e0748421b12b32299c1050f2d.jpg)
.jpg.b37d3f7fa45421104f29cd5c08db7351.jpg)
.jpg.c90b2083dff0c164f929176bbae84c8e.jpg)
.jpg.3232d70bdf993b4dfd567b1e5a47959d.jpg)
.jpg.8530ace3cb686c035921385f5dd07cb5.jpg)
.jpg.37aee55632579839799ca9b89367a24b.jpg)
.jpg.23c96ec526d3dc88e5fae0dfa8fb14f9.jpg)
.jpg.4804c05a2fc745cb4c4ea844174a8578.jpg)