An interest, but not my specialty, but some looked similar to barnacles on the fourth down.  You might find papers interesting, and I could see some similarities.  You may have found something worth documenting and need a specialist with the skill to identify them.  However working in a natural history museum, perhaps you are in a position and would be given the time to develop this expertise and expand the information available on your exploration areas.

http://research.nhm.org/pdfs/26971/26971.pdf

http://www.amjbot.org/content/88/3/467.full

Dear Mr. Hansen!

The idea of the barnacles would be interesting, but the material is from a strictly freshwater-sediment. As far as I know, barnacles occur only in saltwater. However, it'd worth to check the crustacean material from other parts of the world, from the same era. Who knows? :-)

I am mostly interested in fish, this is why I decided to show these pics here, maybe someone, who is more experted than me, could give me a line on some remains, a line worth to catch and follow, or just I can start with.

Thank You for Your time, and interest!

Have a nice day! :-)

Márton 

Did a quick google search and came across a video of someone with live barnacles in his freshwater tank.

https://www.youtube.com/watch?v=OsZw3QI34_w

I hope this helps.

Dear Márton,

Very interest found, i like it very well.

You can look at this pdf

"THE BUDURONE MICROVERTEBRATE SITE FROM THE MAASTRICHTIAN OF THE HAŢEG BASIN - FLORA, FAUNA, TAPHONOMY AND PALEOENVIRONMENT" (CSIKI & al., 2008). In the laste page (66), the specimen N°10 is similar than your first assemblage fossils . Hope this helps

Good luck,

Best

Hakima

Stephen Mars: aftr I wrote that barnacles are saltwater animals, I've immediately regret it :D I also found reports of freshwater-keeping, so I was totally wrong.

Hakima Belkhattab: Thank You very much for the idea! I already saw this paper a few months ago, and I saved it for the case of a possible matching :)

Thank You for Your time!

Have a nice day!

Márton

The specimen a-d on the 3d fig. is reminiscent  of the tooth morphology of the Palaeogene acrodontab lizard 'Tinosaurus' (a waste basket genus).

JC Rage

Jean-Claude Rage: You are totally right, I just checked Smith et al., 2009, fig. 5.

Thank You very much :)

Marton

Most all of these appear to be teeth, some showing typical wear patterns, of multiple types of vertebrates. It seems that both cutting/grinding and crushing types are included. The larger fragment on your last plate (figs A, B, C perhaps G) are perhaps jaw fragments or something else.   Have you tried to identify their composition?  I can't specify what they belong to -- fish are suggested by many of the morphologies -- but identities will have to come from context of other fossils, macrofossils?,  in the fauna I imagine. Very interesting.  Are there mollusks among the biota?

Good luck with these.

Mark Erickson

For me looks like teeth. some of them resemble "conodonts" especielly those on fig 4 and 6 (but beyond the scope). Maybe the owner should be look for amongst primitive river lampreys. Just look at google >>> graphic >>> it is only suggestion.

best Zbyszek

https://www.google.pl/search?q=z%C4%99by+minog%C3%B3w&rlz=1C1AVSW_enPL367PL367&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjRuPCOw-HMAhXMHJoKHbLRDlUQ_AUIBygB&biw=1536&bih=769&dpr=1.25#tbm=isch&q=river+lamprey

Wow, I am surprised by how many people are interested in mysteries :)!

Thank You for everyone!

J. Mark Erickson: They do not seem to be jaw fragments for me, but anyway, who knows? :) There are molluscs in the fauna, bivalves and gastropods too. All specimens are bones for sure, I checked their cross-section surface for safety. They are not shell-fragments, or something like that - as far as I can tell.

Zbyszek Remin: up to now no conodonts have been reported from the locality (I am not an expert, but did they even exist in the Late Cretaceous? or did they go extinct in the Triassic maybe?). But the idea on lampreys is very interesting! However, I cannot find a paper with isolated, Mesozoic lamprey fossil material in it.

Thank You very much once again!

Have a nice day!

Márton

Of course, like I said conodont is not the case - they are all extinct by the end of Triassic and you have freshwater sediments. I just said that they slighlty resemble some of them as in case of the overall morphology, that is why I suggest look for some primitive animals...

I dont even know if the lampreys teeth has ever been described. What is the mineralogy of your "things" and chack what is the mineralogy of the lampreys teeth.

best

Dear Marton,

to me specimens in figs 1,2,3, and 5, most probably are different types of fish teeth, especially in fig.5(A) it is very clear and you can see the jagged pattern at the edges of the tooth. Fig. 6 specimens are very similar to fish bones, but one should see under binocular microscope. And I think specimens of fig.4, are pharyngeal teeth of fish, but as I mentioned one should have look them under microscope in detail.

Hope these were helpful.

With regards,

Habib.

plate 5a & 7b like cyprnid fish teeth

Habib Alimohammadian: I agree with You on those teeth, I determined them as actinopterygian teeth. I maybe see the figures I posted in different ordering, for me the fourth plate includes tooth-bearing elements. Maybe coronoid elements, and stuff. Specimens on the figure 5th for me, are more like pharyngeals for me, earlier I tentatively listed them as pharyngeals. I thought, that maybe someone already saw some remains closely match in morphology to ours. Anyway, micormaterial is always filled with surprises :)

Som Nath Kundal: fig 5A and B are similar to some cyrpinid pharyngeals, indeed :)

Thank You!

Although I'm not a specialist I would say that they look like teeth and agree with J. Mark Erickson that the specimens in the last plate seem to be jaw fragments. Probably belonging to several fish species.

Good luck with solving the "mistery".

Aloha Márton, take a look; might be helpful.

http://paleobiology.si.edu/fossiLab/projects.html#microverts

Microvertebrate Fossils from the Late Cretaceous

Joanne :-)

It is not my subject of study

They are all fish remains (mostly pharyngal).

I remembered that the ODP/DSDP published a tentative biostratigraphical chart as well as a morphology code.

You should try going through some of Jean Gaudant's and Mireille Gayet's works on Cretaceous fish remains.

Good luck

Almost any terrestrial vertebrate tooth (except mammalian molars, probably) can be matched in crown morphology and attachment type by some actinopterygian fish. So, good luck!