Anyone have fossilized Bryozoans? Here is some macros

[jamesp]

Was hoping to see some better fossil records of Bryozoan fossils than these.
Bryozoans are often of tissue or unlike coral, delicate carbonate skeletons and are not to hip on becoming fossils.
These are from the McBean Formation. Also known as Savannah River agate. An attractive version of coastal plain chert.
Eight Bryozoans were discovered in this formation, which is a lot for this creature.
Makes fine cabs and tumbles too.
Apparently the location of the Savannah River cove served as a spot covered in an ancient ocean.
These Bryozoans were captured in silica at the beach(fall)line around Girard Ga.

Screen magnification about 25X









Macro photos shot from these tumbled chips collected from a pile of native man's heat treated chip debris(most likely).
Pottery and broken points found in same spot.





Check out cross section of critter in upper right corner-typical Bryozoan shape

[Sabre52]

I think these are fossil bryozoans in limestone from out by Baker, CA......Mel

[jamesp]

Mar 2, 2014 10:25:07 GMT -5 Sabre52 said:

I think these are fossil bryozoans in limestone from out by Baker, CA......Mel

Much better.That tells me a whole lot about the ones in the Savannah stuff. Those look classic Bryozoan all the way.
I think Jean finds Bryozoans around her area.

[Mark K]

I could produce tons of bryozoan fossils from here. They are not agatized like your though. They are Ordovician.

[jollyrockhound]

Would have never known on those first picts!

[jamesp]

Mar 2, 2014 23:20:39 GMT -5 Mark K said:

I could produce tons of bryozoan fossils from here. They are not agatized like your though. They are Ordovician.

I think they discovered the new ones in the limestone in the area foxtail, and not the silicifications. Like Mel's slab, way better preservation.

[jamesp]

Mar 2, 2014 23:24:02 GMT -5 jollyrockhound said:

Would have never known on those first picts!

Used to collect that colorful stuff 30 years ago jolly and knew it was full of preserved 'somethings'.
Joined this forum and finally found out what they were.

[pghram]

Polished fossils are cool!

Rich

[Pat]

Those are lovely! I need to take my magnifying glass and look harder at my petrified swamp goo and stromatolites.

[Sabre52]

Was looking through my pics. I think these are bryozoans in flint from La Grange, Texas....Mel

[gingerkid]

Beautiful macro shots, James.

Love your specimens, Mel. Really like the first one.

[Mark K]

Mar 3, 2014 7:43:46 GMT -5 jamesp said:

Mar 2, 2014 23:20:39 GMT -5 Mark K said:

I could produce tons of bryozoan fossils from here. They are not agatized like your though. They are Ordovician.

I think they discovered the new ones in the limestone in the area foxtail, and not the silicifications. Like Mel's slab, way better preservation.

I do not understand what you said. It reads to me like I have had a stroke. For some reason I am not connecting the pieces.

[jamesp]

Mar 5, 2014 15:41:31 GMT -5 Mark K said:

Mar 3, 2014 7:43:46 GMT -5 jamesp said:

I think they discovered the new ones in the limestone in the area foxtail, and not the silicifications. Like Mel's slab, way better preservation.

I do not understand what you said. It reads to me like I have had a stroke. For some reason I am not connecting the pieces.

Sorry foxtail. Georgia grammer. Was saying that fossilized bryozoans were discovered in the McBean formation here in east Georgia.
They discovered 8 new ones. But they were discovered in limestone, not int the silicified material. I guess the limestone had done a better job
of preservation. And the silicified stuff did not preserve so well.

[Jugglerguy]

I'm not sure exactly why bryozoans are, but Mel's picture looks a lot like this cladopora coral from Michigan:







I have a book of Michigan fossils which shows a picture of a bryozoan that looks like the mesh like part of the rock on the left:

[jakesrocks]

Here's one from my collection. I'll check and see if I have more pics.-- Rugose Bryozoan.

Found another.

Both are from the Potter Farm formation, Michigan.
And another showing the Rugose Bryozoan still in a soft matrix death plate.

[Jugglerguy]

Yep, those look familiar. What's the difference between bryozoans and corals?

[jakesrocks]

Hey Rob, without getting too technical, this might answer your question. www.bio.umass.edu/biology/conn.river/corals.html

[Jugglerguy]

Thanks Don.

[Sabre52]

*L* Truthfully, I'm not a paleo guy so those may very well be corals. To me, many corals and rugose bryozoans look a lot alike in cross section. I really never looked up the stuff in my slab. A fossil guy told me what they were. I tried looking up Cladopora in all the fossil books I have and Index Fossils of Texas is the only one with Cladopora that are sort of branched and to me they look almost identical to Bryozoans of similar form so I'll bow to your superior knowledge....Mel

[Jugglerguy]

Mel, I think you misunderstood. I don't know much at all. My comment was more of a question. On the subject of biology, I think you are the guy with superior knowledge!