Search the Community
Showing results for tags 'placoderm'.
-
Ahoi, I just finished a model of Dunkleosteus the lazy way, because I don´t have that much time these days. Lazy way means: Skull is a bought model from kaiyodo dinotales, postcranial is a skeletal drawing by Scott Hartmann I modified slightly and printed on some transparent foil. Like the outcome. It is quite small though, only 15 cm, representing a meager 3m in my chosen scale. can anyone tell what the other two are? both recent species, one handmade after a photograph, the other 3d printed from ct data. As I don´t know if I can add tags after posting
- 120 replies
-
- 10
-
-
- model
- temnospondyli
- (and 6 more)
-
I believe this is fish but just wanted to double check
-
Hi Guys, I recently purchased the placoderm below, it originates from Jebel El Mrakib, Maeder Region, of Morocco, and is dated to the early Famennian of the upper Devonian. The species is Titanichthys termeri. I was trying to do a bit more research on Moroccan placoderms but couldn’t find too much online, I was just wondering how common Placoderm fossils are to the region, any interesting facts about the species and maybe some geological context to the formation (and hopefully the fossil looks authentic – I didn’t notice anything questionable myself but please let me know if you think oth
-
I managed to actually take a vacation last weekend and meet up with our very own Tim and Paul to collect Late Devonian verts from PA. I first met up with Paul at Red Hill. When I first arrived at the site I didnt know the person there was him. So I parked and walked into the ditch at the base of the road-cut and immediately spotted a strange form in a piece fallen from above. As it turned out it was a Gyracanthus spine! Gyracanthus sp. Turns out the mystery collector was Paul, who was kind enough to give me a rundown on the site, its geology, and show
- 27 replies
-
- 24
-
-
-
- placoderm
- acanthodian
- (and 2 more)
-
From the album: Fossildude's Upper Devonian Fish Fossils
Catskill Fm. Rte 15 road cut. Upper Steam Valley Upper Devonian© 2021 Tim Jones
- 3 comments
-
- 2
-
-
- fish plates
- turrisaspis
- (and 3 more)
-
From the album: Fossildude's Upper Devonian Fish Fossils
Metzgers' Quarry, Canton, PA. Bothriolepis sp. head shield partial Catskill Formation© 2021 T. Jones
- 3 comments
-
- 5
-
-
- placoderm
- armored fish
- (and 3 more)
-
This past weekend, I had the pleasure of hunting with my rock club in central Iowa. I found what I think is placoderm, though there was multiple opinions given to me. Nothing earth shattering, but exciting for me! Can you help clarify the ID of the specimens? The last piece broke revealing more "placoderm" inside.
-
I recently discovered this in the Devonian Onondaga Formation of Ontario and am thinking it’s either a Placoderm or a Onychodontid based off the armour like texture which does not match any coral in the formation, their is also the presence of odd spine like structures. Any idea if it is one of these species?
-
Dunkleosteus jaw: Is it real?
Praefectus posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hello. I was wondering if I could get some opinions on the authenticity of this Dunkleosteus jaw. The jaw is coming from the Devonian of Morocco. It measures 12" long by 4" tall. The seller indicates that only the tip of the jaw was restored, but I suspect that the restoration may extend further. Thank you for your help. @Mioplosus_Lover24 Care to weigh in? Thanks.- 11 replies
-
- 2
-
-
-
- dunkleosteus
- placoderm
- (and 1 more)
-
I was wondering if a complete or fairly complete placoderm skull/head has ever been found at Arkona? I am just curious as what this would look like, and because I have a few placoderm bits and pieces myself, pictures of such a fossil could possibly help me to figure out where these pieces came from. (This is mostly out of curiosity though because I know small placoderm bits are basically impossible to identify)
-
Back during an April trip to the Widder Formation (Mid-Devonian), I came upon a rather sizeable placoderm. It is very likely the arthrodire, Protitanichthys sp., although it is a bit of wastebasket taxon, but new research is underway. It was pretty much stuck in this rock, and it was only going to come out the hard way. I collected every little bit I could find from that dirty, messy bench, including the impression. Here is the in situ photo:
-
This is continuing the first post. The Tioga site is a near shore exposure of the entire Catskill formation. So besides the general Holoptychius and bothriolepis fauna, lungfish have been described from a skull table and tooth plates. Here is a tooth plate from Dipterous fliescheri. A similar plate was described from the Troy, PA area.
- 12 replies
-
- 5
-
-
- catskill
- pennsylvania
- (and 2 more)
-
Hello everyone! I have recently purchased this skull roof from an actinolepid placoderm from the lower Devonian of Ukraine, The fossil was labelled as Kujdanowiaspis, but there is also a closely related genus found there called Erikaspis. I have been looking at several papers to try and see what distinguishes the two and if it is possible to tell what mine is but right now I am not sure. Any help identifying the genus and even species if possible would be great, Thank you
-
From the album: Vertebrates
Millerosteus minor Miller, 1858 Middle Devonian Eifelian Caithness Scotland Millerosteus minor (named after Hugh Miller, a Scottish geologist and paleontologist 1802-1856) was a small arthrodire placoderm, rarely exceeding 15cm. The extinct armored fishes known as placoderms make up what is considered to be the earliest branch of the gnathostome family tree -- the earliest branch of the jawed fishes. Arthrodires possessed jaws but no teeth. Razor-sharp bony dental plates formed sort of a beak and allowed to gnaw on prey. Arthrodires (“jointed nec -
Hi is there any possible way this could be pieces of Placoderm armour or bones? There very different from what I usually find in the area and seem to be vertebrate in origin if it’s not geologic.
-
So I found these bones in a block of Bois Blanc fm., which dates this to around the middle Devonian. When it was found the block was in several pieces which at the time I didn't realize was associated, but upon further inspection I found the pieces fit together. Interestingly the fossils are not layered and appear at random depths throughout the block, not just in one layer. Because of this I think there may be more to be discovered in the rock. I tried prepping a smaller bone fragment out, but it turns out the bone is much softer than the matrix and the bone fragment is now many fragments. I
- 9 replies
-
- 4
-
-
- middle devonian
- bois blanc
- (and 1 more)
-
Mongolian Placoderm Fossil Might Change Our Ideas About Shark Evolution
Scylla posted a topic in Fossil News
We thought sharks' cartilaginous skeletons existed because endochondral bone evolved after sharks branched off the family tree, but this Placoderm common ancestor of sharks and bony fishes has bone. This indicates that sharks may have lost the ability to make endochondral bone. https://phys.org/news/2020-09-ancient-bony-fish-rethink-sharks.html-
- 3
-
-
- endochondral bone
- placoderm
- (and 1 more)
-
Just got back from a 5 day trip to western NSW where we visited a number of sites, some of which we had not visited before. Will post more photos and information over the next few days as I have a lot to photograph, but here are some field shots from day two (our first collecting day)... Our first site was located near Grenfell and is known for its excellent Devonian fish fauna, including placoderms and sarcopterygians. While not as well preserved as the nearby Canowindra site, these are collectable which is a start . We were only given a vague site on a hillside located on private
-
Last weekend we were invited by a few friends to joint hem on a fieldtrip in Famennian ( Late Devonian ) deposits in Belgium. They sometimes visit this place specifically to look for Devonian plant material. Although paleobatany is not our cup of tea they convinced us to come along because they had also found fish remains from time to time, so we tagged along in the hope to find some Devonian fish. At first we didn’t find much apart from the plant material, but one of our friends led us to a boulder where he had seen some fish scales on a previous visit. And indeed, after closer
- 12 replies
-
- 17
-
-
Found this nice slate blue piece in my recent trip to Western New York. What do you guys think? The piece isn’t very big, maybe half an inch - but it looks relatively thick, maybe a centimeter and a half?
- 6 replies
-
- 1
-
-
- placoderm
- vertebrate
- (and 2 more)
-
Today on a hunt in the lower devonian of new york, I found on of the most unusual piece and I can't decide if its bryzoan or possible placoderm.
-
I found this fossil in Devonian rock in Johnson County, Iowa. I think it is a fossil of a placoderm fish, and I think it has a "fin" next to the quarter in the photo. The fin would be coming out of the placoderm plate at a perpendicular angle, which would make sense, but I have never found a fin before. I will attach a close-up photo of the "fin" below. Am I on the right track or is this something else? Thank you! Ben
-
I bought a small fossil collection that contained several Erismatopterus levatus and it also contained several unidentifiable and unlabeled items, in particular this piece. It reminds me almost of a placoderm skull plate, but I honestly don't have any idea. There's area of denticles on the side of the fossil.
-
Hi all! I pulled this fossil out of Red Hill, a Devonian site in central Pennsylvania. I thought it looks like it could possibly be part of a placoderm but I’d love to get some help with further identification. Thanks in advance!
-
Leicester Pyrite Member. This layer between the Windom and the Geneseo black shale represents a sea of death. I find very few types of fossils in this hard to process layer of solid pyrite. Well preserved cephalopods and Placoderm armor (Placodermi is a class of armored prehistoric fish) are the most common fossils found. This very thin horizon can be easily found in the outcrop if you just look for rust dripping down and staining the grey shales below this pyrite layer. Every year or two, a piece of Leicester Pyrite will fall from its position high up in the outcrop and slide dow
