Mazon Creek: Round 2

[sloth]

Hi all, I recently worked up the nerve to hit mazon again. I have some suspicions on what a couple of these might be but was wondering what other people thought.

1

2

3

4

[Manticocerasman]

the 3d one looks like a scorpion tail

but I m far from an expert on that matter 

 

 

[Arizona Chris]

The first one vaguely looks like an insect with one wing.  Maybe fern leaves for the second, shrimp like for the third and not much for the fourth.  (?)

[jdp]

First one looks like a pectoral fin and associated pectoral fin spine from the spiny shark Acanthodes. Second one vaguely reminds me of Arthropleura.

[sloth]

1 hour ago, jdp said:

First one looks like a pectoral fin and associated pectoral fin spine from the spiny shark Acanthodes. Second one vaguely reminds me of Arthropleura.

Well you just made my year if that's really a fin from Ancathodes. I was thinking some kind of centipede for number 2

[deutscheben]

Numbers 1 and 3 appear to be partial shrimp material- the texture of the carapace is very distinctive and matches some in my collection. 

 

Number 2 is a fern.

 

Number 4 I'm not sure about- I think it may just be mineral infill with no fossil, a not infrequent occurrence in Mazon Creek fossils

[CBOB]

I agree with deutscheben on his input for all four.  Number 2 fern is a partial neuropteris.  Next time post some measurement or scale next to each fossil to help with ID's.  Also those look like they could use a cleaning which would also help in ID's.

[Miocene_Mason]

I agree with 3 being shrimp, and 2 being fern. 

[sloth]

Thanks everyone, I agree with 2-fern, 3-shrimp (I'm trying to work out the species), 4-nothing(I dont want to stare at it anymore). The 1st one does seem to have a pretty conspicuous spine that I am hoping can narrow down the species, whether it be shrimp or fish.

[sloth]

22 hours ago, deutscheben said:

Numbers 1 and 3 appear to be partial shrimp material- the texture of the carapace is very distinctive and matches some in my collection. 

 

Number 2 is a fern.

 

Number 4 I'm not sure about- I think it may just be mineral infill with no fossil, a not infrequent occurrence in Mazon Creek fossils

 

22 hours ago, CBOB said:

I agree with deutscheben on his input for all four.  Number 2 fern is a partial neuropteris.  Next time post some measurement or scale next to each fossil to help with ID's.  Also those look like they could use a cleaning which would also help in ID's.

Could number one be the tail of Acanthotelson? I some similarities to this member's post.

[RCFossils]

Others are correct. Fossils # 1 and 3 are both shrimp molts from either Lobetelson or Belotelson. Line 2 is a section of a Pecopteris frond.

Not sure about #4 it is most likely mineralization.

[KimTexan]

I thought # 2 looked like the neuopteris at first, but I think it looks more like the Pecopteris. See pics below from this site.

http://paleobiology.si.edu/mazoncreek/mazonGroups.html

[Brittle Star]

Brilliant finds, wish I lived a bit closer, who am I kidding ALOT closer.

[sloth]

8 hours ago, Brittle Star said:

Brilliant finds, wish I lived a bit closer, who am I kidding ALOT closer.

Yeah, I think any fossil found here is incredible. I thought the 3 hour drive I took was far but it looks like you would have even more of a commute. 

[TheRocksWillShoutHisGlory]

Do you have the other half to #1?

 

It looks suspiciously like the indentation from a xenacanth tooth.

[Brittle Star]

On ‎21‎/‎10‎/‎2017 at 12:37 AM, sloth said:

Yeah, I think any fossil found here is incredible. I thought the 3 hour drive I took was far but it looks like you would have even more of a commute. 

Hi Sloth, I live in a fossil dead zone apparently. Silurian era is my closest and it would take two buses then a train and then another bus or two. Hence I only fossil once or twice a year when I go on holiday down south. If I flew anywhere they would not let me back on the plane, my baggage would be soooooo overweight.