Denali Hwy fossils

[Dave in Alaska]

I was out moose hunting for a couple of weeks on the Denali Hwy and discovered these.  I am pretty sure the first one is a crinoid stem segment or the imprint of one rather.  The second and third I am not sure about.  If any one has any information it would be appreciated.

 

Thanks,

Dave

[Dave in Alaska]

Sorry forgot to include scale.

 

The first photo has the tip of my index finger in it.

 

for the second photo the item in question is about 1 inch long, and the third photo the whole picture represents about 1 inch of the rock. 

[Monica]

Hi Dave!

 

Since the first item is circular and really small then I'd say that a crinoid segment mold is a good guess.

 

I have no idea what your second item could be!  Is there any indication that your specimen might be divided into segments?

 

For your third item - since you say the photo is showing about one inch of rock (i.e. a really small piece of rock), could it perhaps be showing a fenestrate bryozoan?  The little mesh-like pattern looks like tiny windows (hence the name "fenestrate" - "window" in Latin, I believe, since "finestra" means "window" in Italian ).

 

I'm not sure at all in my identifications - let's wait for others to chime in...

 

Monica

[Dave in Alaska]

My thoughts were along the same line. 

 

No detectable segmentation on the second photo. 

[abyssunder]

Probably not too much help (and I could be wrong), but what's in the first picture looks more like corals, to me (the one in transverse section and the lower one/ones with conical shape) rather than crinoid columnal/columns, also that from the second picture which may be an imprint of coral, or just a sectioned burrow; although they are not clearly distinguishable.
In the third picture could be also some coral remains, maybe Alveolites.
In the exposures along the Delani highway 4-5 km east of Cantwell, in the massive-gray weathering limestone, W.A. Oliver (written commun., 1976) has identified Alveolites sp., Auloporoid related to Romingeria sp., Lyrielasma sp., cf. Microplasma sp..

Try to compare with these.

[Dave in Alaska]

Ok I'll look those up.  I don't know if it makes a big difference but I was more like 115 km east of cantwell

[Dave in Alaska]

I don't know if it helps but the rock was covered in disk shapes or partial disk shapes.  Here is another.

[abyssunder]

The disk shapes could be from crinoid columnals, but is not clearly visible what is on the surface. Septa or crenulae?

[Dave in Alaska]

Ok thank you.  I looked up some of your suggestions.

The second photo looks similar to some of the Alveolites sp. fossils that came up during the search.

Still looking.

[Dave in Alaska]

I have continued doing some research and it looks like the area I was in is the clearwater mountains.  They appear to be mostly younger rocks then the Devonian limestone deposit exposed east of Cantwell.  It looks like mostly late Permian and Triassic rocks. 

[tmaier]

I can honestly say that this has never happened to me while moose hunting in Florida.

[Dave in Alaska]

Yes, it is my understanding is moose in Florida are very elusive. few even try to hunt them :)  

[goatinformationist]

Well we did have a lot of buffalo in Florida till the cowboys moved in.