Jump to content

Bryozoa - Show & Tell


piranha

Recommended Posts

Occasionally a random bryozoan image is discussed/posted. It would be great to see these lesser appreciated inverts have their 15 minutes of fame here at TFF. I have a small assortment to start the ball rolling. I'm really curious to see the variety of forms from all across North America and especially from our great members across the pond.

Taeniopora exigua - Devonian

Hamilton Group - New York

Bryozoan sp(?) Ordovician

Decorah Shale - Minnesota

post-4301-082166800 1292021573_thumb.jpg

post-4301-036987800 1292021586_thumb.jpg

post-4301-022846300 1292021596_thumb.jpg

post-4301-015138000 1292021607_thumb.jpg

image.png.a84de26dad44fb03836a743755df237c.png

Link to comment
Share on other sites

Constellaria florida - Ordovician

Kope Formation - Kentucky

Escharopora falciformis - Ordovician

Kope Formation - Kentucky

Escharopora maculata - Ordovician

Grant Lake Formation - Kentucky

post-4301-000878400 1292022924_thumb.jpg

post-4301-006154500 1292022936_thumb.jpg

post-4301-014826800 1292022953_thumb.jpg

post-4301-070035700 1292022963_thumb.jpg

image.png.a84de26dad44fb03836a743755df237c.png

Link to comment
Share on other sites

i think some of these are bryozoa ==> these

i have a bunch of that sort of thing but i don't handle it without wearing gloves, because i don't trust these creatures. i've heard they're related to eczema.

oh, the ones in the picture are from north texas and they're 300 million years old, but i don't know their birthday. ya'll.

Link to comment
Share on other sites

Hi Piranha:

This has been brought up before

http://www.thefossilforum.com/index.php/topic/12242-show-us-your-bryozoans/

Great Constellaria, up here, that is one of the rarest species to find

Thanks for that link Northern - the plate from Tasmania is excellent.

OK - let's give the bryozoans a second 15 minutes - Keep 'em coming guys! ;)

Edited by piranha

image.png.a84de26dad44fb03836a743755df237c.png

Link to comment
Share on other sites

Here are a few more that I've added since the original post. Also, my "mystery" bryozoa has since been identified as a branching Favositine coral.

post-77-038408100 1292025127_thumb.jpg

post-77-052726200 1292025161_thumb.jpg

post-77-010352900 1292025189_thumb.jpg

Edited by Northern Sharks
  • I found this Informative 1

There's no limit to what you can accomplish when you're supposed to be doing something else

Link to comment
Share on other sites

Occasionally a random bryozoan image is discussed/posted. It would be great to see these lesser appreciated inverts have their 15 minutes of fame here at TFF. I have a small assortment to start the ball rolling. I'm really curious to see the variety of forms from all across North America and especially from our great members across the pond.

Taeniopora exigua - Devonian

Hamilton Group - New York

Bryozoan sp(?) Ordovician

Decorah Shale - Minnesota

This post made me realize I don't have any Bryos in my collection (I don't think!) Somehow they've eluded me. We dont find them in this area anyway but you'd think I would have bought one by now..

That Taeniopora sure caught my eye.

Link to comment
Share on other sites

post-1900-0-86985200-1292286959_thumb.jpg

here is mine! I still cant ID my bryo... :/ I also have a few pieces of Fenestella and some other devonian ones but they are kinda small.

Link to comment
Share on other sites

here is mine! I still cant ID my bryo... :/ I also have a few pieces of Fenestella and some other devonian ones but they are kinda small.

Very Nice Larsa! Thanks for posting. B)

What are the dimensions and where did you find it?

Thanks!

image.png.a84de26dad44fb03836a743755df237c.png

Link to comment
Share on other sites

:wub: What a Taeniopora exigua specimen! :wub: I only find small bits and pieces.

-Dave

__________________________________________________

Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPhee

If I'm going to drive safely, I can't do geology. - John McPhee

Check out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/

Link to comment
Share on other sites

Its about the size of both my hands placed next to eachother. Im actually "rock-sitting" it until I can ID it. It was a donation, I wish I knew where it came from.

Link to comment
Share on other sites

:wub: What a Taeniopora exigua specimen! :wub: I only find small bits and pieces.

Thanks Shamalama!

Can you believe I found it at ebay for $15 shipped? :o

"Rock with Fossils on it from NY" was the listing title. :P

With one blurry photo shot from a old brownie camera. :blink:

Even a blind bird catches a worm once in a while. B)

image.png.a84de26dad44fb03836a743755df237c.png

Link to comment
Share on other sites

This post made me realize I don't have any Bryos in my collection (I don't think!) Somehow they've eluded me. We dont find them in this area anyway but you'd think I would have bought one by now..

That Taeniopora sure caught my eye.

They had their hayday back in the Paleozoic. Here in the Cretaceous of Texas you might find a few little encrusting colonies on other shells but branching or frondose specimens are very rare.

Link to comment
Share on other sites

Here are some more recent unidentified massive bryozoans.

1) and 2)Mid-Upper Pliocene Pinecrest member of the Tamiami Formation, Sarasota County, Florida

3) Plio-Pleistocene Waccamaw Formation, Columbus County, North Carolina

4) Mid-Upper Pliocene Moore House Member of the Yorktown Formation, Chuckatuck, Virginia

5) Middle Pleistocene Bermont Formation, Palm Beach County, Florida also showing a Callianassa claw

post-1906-0-60725000-1292622410_thumb.jpg

post-1906-0-42460200-1292622427_thumb.jpg

post-1906-0-77489100-1292622493_thumb.jpg

post-1906-0-39059100-1292622509_thumb.jpg

post-1906-0-88392100-1292622521_thumb.jpg

"A problem solved is a problem caused"--Karl Pilkington

"I was dead for millions of years before I was born and it never inconvenienced me a bit." -- Mark Twain

Link to comment
Share on other sites

Here are some more recent unidentified massive bryozoans.

1) and 2)Mid-Upper Pliocene Pinecrest member of the Tamiami Formation, Sarasota County, Florida

3) Plio-Pleistocene Waccamaw Formation, Columbus County, North Carolina

4) Mid-Upper Pliocene Moore House Member of the Yorktown Formation, Chuckatuck, Virginia

5) Middle Pleistocene Bermont Formation, Palm Beach County, Florida also showing a Callianassa claw

I especially like the globular form of the first specimen.

Thanks Mike, these are fantastic! B)

Edited by piranha

image.png.a84de26dad44fb03836a743755df237c.png

Link to comment
Share on other sites

Unidentified Cenozoic encrusting bryozoa:

1) Bryozoa encrucsted Turritella aliticostata, Middle Pliocene, Moore House Member of the Yorktown Formation, Chuckatuck, Virginia

2) Bryozoa encrucsted barnacles, Middle Pliocene, Moore House Member of the Yorktown Formation, Chuckatuck, Virginia

3) Middle Pliocene, Moore House Member of the Yorktown Formation, Chuckatuck, Virginia

4) Plio-Pleistocene, Waccamaw Formation, Columbus County, North Carolina

5) Lower Pleistocene, James City Formation, Beaufort County, North Carolina

post-1906-0-60617800-1292856992_thumb.jpg

post-1906-0-48571400-1292857004_thumb.jpg

post-1906-0-63097300-1292857020_thumb.jpg

post-1906-0-92499000-1292857031_thumb.jpg

post-1906-0-38606800-1292857046_thumb.jpg

"A problem solved is a problem caused"--Karl Pilkington

"I was dead for millions of years before I was born and it never inconvenienced me a bit." -- Mark Twain

Link to comment
Share on other sites

heres a bryosoa, i have no idea what it is..if any one has any guess' go ahead! :)

anyway.....it was found in the lindsay formation, ontario. Ordovician.

post-3994-0-40777700-1292858710_thumb.jpg

-Shamus

The Ordovician enthusiast.

Link to comment
Share on other sites

MikeR, thair, trilobite guy, et al., Thank You!

The diversity is amazing and the fossils are spectacular!

Keep 'em coming guys and gals! B)

image.png.a84de26dad44fb03836a743755df237c.png

Link to comment
Share on other sites

Earlier I stated that I had no bryozoans - since then I discovered one on the bottom of a blastoid (Pentremites) I have from Milstadt IL. If any one knows the name or general taxon I'd appreciate knowing it, thanks!

post-4372-0-13430700-1293010232_thumb.jpg

Link to comment
Share on other sites

Earlier I stated that I had no bryozoans - since then I discovered one on the bottom of a blastoid (Pentremites) I have from Milstadt IL. If any one knows the name or general taxon I'd appreciate knowing it, thanks!

Hi Eric, Thanks for another puzzler here. There is ample data to at least give us the formation and stratigraphy for this bryozoan. Isolating the genus and species will be more difficult because your fossil is a bit weathered away. Pentremites are commonly associated with various described bryozoan colonies listed from the Chesterian Series that includes the Milstadt Illinois locality.

The following genera have been described in association with Pentremites of the Chester Series fossils; Archimedes, Cystodictya, Glyptopora and Lyropora. There is a very good paper on the subject; The Mississippian Fauna of Kentucky describing 16 different Chester Series faunal assemblages from Kentucky and those associated from Illinois, Iowa and Missouri.

Additionally, Index Fossils of North America lists Archimedes sublaxus from the Chester Series of Milstadt. The fan shaped portion preserved in that example looks closest out of the few I've looked at so far. At least this paper and other online references corroborate the formation and age of your fossils.

Always fun Eric! What'ya got next? :wacko:

Edited by piranha

image.png.a84de26dad44fb03836a743755df237c.png

Link to comment
Share on other sites

Hi Eric, Thanks for another puzzler here. There is ample data to at least give us the formation and stratigraphy for this bryozoan. Isolating the genus and species will be more difficult because your fossil is a bit weathered away. Pentremites are commonly associated with various described bryozoan colonies listed from the Chesterian Series that includes the Milstadt Illinois locality.

The following genera have been described in association with Pentremites of the Chester Series fossils; Archimedes, Cystodictya, Glyptopora and Lyropora. There is a very good paper on the subject; The Mississippian Fauna of Kentucky describing 16 different Chester Series faunal assemblages from Kentucky and those associated from Illinois, Iowa and Missouri.

Additionally, Index Fossils of North America lists Archimedes sublaxus from the Chester Series of Milstadt. The fan shaped portion preserved in that example looks closest out of the few I've looked at so far. At least this paper and other online references corroborate the formation and age of your fossils.

Always fun Eric! What'ya got next? :wacko:

Thanks Scott... I should have mentioned that the blastoids were labeled as:

"P. symmetricus, L. Chesterian, Ridenhower Fm, Milstadt IL." That might narrow it down for us.

I'm confused when I see the label above vs. the pics in the article, wherein the P. brevis look more like mine (the symmetricus are more elongated)!

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...