Unknown marine fossils

[FrostbyteFossils]

During a trip I purchased a container of small marine fossils. I could identify almost all of them except for a few. Age, location, etc. unknown. Does anyone know what they could be? 

 

P.S. feel free to ask for more pictures.

[FrostbyteFossils]

The second one

[FrostbyteFossils]

The third one

[FrostbyteFossils]

The fourth one

[KimTexan]

10 hours ago, FrostbyteFossils said:

The third one

    

This one is a cephalopod of some kind. I can’t tell if it is a type of orthoceras or something similar.

[KimTexan]

10 hours ago, FrostbyteFossils said:

The fourth one

    

This also looks like it could be a type of cephalopod, but I don’t know which. May we see the wider end straight down on the end? Can you see a siphuncle? 

[FrostbyteFossils]

9 minutes ago, KimTexan said:

This also looks like it could be a type of cephalopod, but I don’t know which. May we see the wider end straight down on the end? Can you see a siphuncle? 

Are these the right angles? I dont see a siphuncle, perhaps you can?

[KimTexan]

No I am not seeing one, but that doesn’t mean it isn’t a cephalopod. However I have never seen a cephalopod with wide bands like that without suture lines. So I am wondering if it could be a sponge of some sort.

I was also wondering if 1 & 2 might be sponge fragments too. Sponges and corals can have hollow rod shaped features. However corals are generally more structured and have a pattern whereas sponges can be less structured.

There is a thread on here of something like “Show is your sponges” probably not exact title, but there are many pictures in that thread.

[FrostbyteFossils]

9 minutes ago, KimTexan said:

No I am not seeing one, but that doesn’t mean it isn’t a cephalopod. However I have never seen a cephalopod with wide bands like that without suture lines. So I am wondering if it could be a sponge of some sort.

I was also wondering if 1 & 2 might be sponge fragments too. Sponges and corals can have hollow rod shaped features. However corals are generally more structured and have a pattern whereas sponges can be less structured.

There is a thread on here of something like “Show is your sponges” probably not exact title, but there are many pictures in that thread.

Ok thanks ill have a look

[DeepTimeIsotopes]

35 minutes ago, FrostbyteFossils said:

Ok thanks ill have a look

 

45 minutes ago, KimTexan said:

There is a thread on here of something like “Show is your sponges” probably not exact title, but there are many pictures in that thread.

I think this is the thread you’re referring to:

 

[Tidgy's Dad]

My guesses agree with the above, mostly.

1. A colonial coral.

2. A piece of petrified wood.

3. and 4. Orthoconic nautiloids, we have very similar ones from the Devonian here in Morocco. 

[Ludwigia]

I agree wholeheartedly with Adam. I've no doubt that that last one is not a sponge but rather a nautiloid as first suggested.

[KimTexan]

I thought 2 looked like petrified palm wood, but since he said they were marine environment I was unsure. Granted we find petrified wood in the North Sulfur River all the time and it is a marine environment. 

7 hours ago, Tidgy's Dad said:

3. and 4. Orthoconic nautiloids, we have very similar ones from the Devonian here in Morocco. 

Do you know what genus #4 would fall under? I originally thought orthoconic in shape, but believe it is something other than Orthocerace because of the shape of what looks like annulosiphonate and episeptal deposits seen here.

But maybe I am reading too much into the dark lines. They don’t seem to be symmetrical like I would expect them to be in an Orthoceras. So maybe they’re just mineral deposits. It seems like they are indicative of septa and siphuncle somehow though. Since I am unfamiliar with orthoconic cephalopods in general I can’t interpret the lines. Maybe it is something along the lines of Pleurorthocerace. They have broader chambers. 

 

Whatever the case it doesn’t appear to be a Cretaceous cephalopod, but from an earlier period.

I live where the Cretaceous is dominant and we don’t have Orthocerid cephalopods here. We have baculites, ammonites and nautili.

[Tidgy's Dad]

1 hour ago, KimTexan said:

I thought 2 looked like petrified palm wood, but since he said they were marine environment I was unsure. Granted we find petrified wood in the North Sulfur River all the time and it is a marine environment. 

Do you know what genus #4 would fall under? I originally thought orthoconic in shape, but believe it is something other than Orthocerace because of the shape of what looks like annulosiphonate and episeptal deposits seen here.

 

But maybe I am reading too much into the dark lines. They don’t seem to be symmetrical like I would expect them to be in an Orthoceras. So maybe they’re just mineral deposits. It seems like they are indicative of septa and siphuncle somehow though. Since I am unfamiliar with orthoconic cephalopods in general I can’t interpret the lines. Maybe it is something along the lines of Pleurorthocerace. They have broader chambers. 

 

Whatever the case it doesn’t appear to be a Cretaceous cephalopod, but from an earlier period.

I live where the Cretaceous is dominant and we don’t have Orthocerid cephalopods here. We have baculites, ammonites and nautili.

Just mineral deposits , I think.

I couldn't say what genus, the common one that comes out of Morocco is Geisonoceras, Orthoceras is only found in the Baltic area, but there are so many similar forms. 

[abyssunder]

The third one might be a Baculite. The narrow end pattern looks similar to those of the specimens below.

 

picture from here