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Show Us Your Sponges


JimB88

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some Castle Hayne sponges? Note that the amorphous one is flinty. There are at least two other types. Just above the Comfort Member in plastic clay with no other recognizable mega-fossils. Probably sequence 3 of Castle Hayne. Rocky Point, NC

Those are fantastic. The sponge in the lower right is Exanthesis ovatus. Barry (Indy) recently posted a magnificent complete example at the attached link that was classified earlier this year (Finks et al., 2011).

Thanks for posting! :D

LINK

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Those are fantastic. The sponge in the lower right is Exanthesis ovatus. Barry (Indy) recently posted a magnificent complete example at the attached link that was classified earlier this year (Finks et al., 2011).

Thanks for posting! :D

LINK

Thanks a million! Now I have to get hold of that reference. Hope I can get it as pdf.

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Nice thread! Below are three specimens of Astylospongia praemorsa that I found in gravel deposits in Germany. The sponges are Ordovician in age and the exact place where they originally come from is still unknown.

Sincerely,

Bram

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Edited by Xenocidaris

Fossils: a way of life

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Five specimens of Aulocopium aurantium, same deposits as previous sponges, also Ordivician in age. These are only the basal parts, the rest of the sponge is very often missing.

Sincerely,

Bram

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Fossils: a way of life

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In the aforementioned deposits, one can also find Cretaceous sponges: Doryderma and Rhizopoterion are examples.

Sincerely,

Bram

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Fossils: a way of life

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Below are some pics of individual skeleton elements of sponges: spicules http://en.wikipedia.org/wiki/Sponge_spicule The first are from Astraeospongia, from the Eifel, Germany, the last picture is a close-up of a fragmentary Rhizopoterion, found in gravel deposits in The Netherlands.

Sincerely,

Bram

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Fossils: a way of life

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This information was long overdue and quite happy to finally solve a riddle from December of 2010. MikeR posted a fabulous fossil he believed to be two sponges from the Eocene Castle Hayne Formation of North Carolina. One of the names was listed as Ophirhaphidites infundibuliformis or Ophirhaphidites hadros as suggested by Rigby 1981, and is considered invalid by the current authors (Finks et al. 2011) in favor of Cerberorhaphidites auriformis. However, Mike's specimen turns out to be one species of a completely different sponge after all. This incredible sponge is described as Druidia wilsoni and the characteristic features present are the central cone and one radial slab-like fin:

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DIAGNOSIS: Entire sponge approximately twice as broad as high; central cup approximately half as broad as high, more or less elliptical in cross-section and prismatic, with faces corresponding to fins; cup with sigmoidal profile and everted lip rising well above tops of fins; inner sieve attached to external wall and imperforate opposite angles between fins; fins numerous (9-22).

DESCRIPTION: Sponge body composed of a central cone, apex down, surrounded by 9-22 radial, slab-like extensions or fins, their flat sides vertical. Their edges are rounded, as is the upper rim of the central cone. Their tops begin a short distance below the rim of the central cone, and in profile exhibit a distinct shoulder as they slope outward and downward to the base. New fins are intercalated as the central cone expands upward, the earlier ones continuing beside them. There is no discernible pattern or symmetry in their insertion, such as there is with the septa of corals.

RE: Finks, Robert M., Hollocher, Kurt, and Thies, Kenneth J., 2011.

A Major Eocene Sponge Fauna (Castle Hayne Formation, North Carolina).

Journal of the North Carolina Academy of Science, 127(2), pp. 39-175.

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  • 2 weeks later...
  • 3 weeks later...

Titusvillia sp.

Mississippian - Meramecian Series

Warsaw Formation - St. Louis, MO

Identified by: Dr. J. Keith Rigby

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Titusvillia? root tufts

Mississippian - Meramecian Series

Warsaw Formation - St. Louis, MO

Identified by: Dr. J. Keith Rigby

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Website (more images) Link

Barry

.

Flash from the Past (Show Us Your Fossils)
MAPS Fossil Show

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The only sponge I have ever found! This specimen was in amongst a lot of other gravel in and around an old stream bed and the gravel really didn't look native to the area but I am not sure of that. South Clinton county near Lathrop Missouri. Sorry about not having more info on the collection area and geology but I found this several years ago before I started recording my finds.

jkfoam is the first one in my original post to ID it as such. Thanks again jkfoam! :)

Demospongea - Agelasida - Girtyocoeliidae - Beedi

Not very common but it is found in Carboniferous Missouri, follow this link that Indy provided... 

http://paleodb.org/cgi-bin/bridge.pl?a=basicTaxonInfo&taxon_no=3756

post-7046-0-56363800-1322665648_thumb.jpgpost-7046-0-86970600-1322665674.jpgAnd thank you piranha for the Treatise volume of Porifera page!

Link to original post...

http://www.thefossil...__fromsearch__1

Edited by Kehbe
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It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change.

Charles Darwin

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Heliospongia sp.

Pennsylvanian, Captain Creek Limestone

Kansas City, Missouri

I found these two embedded in the top of the limestone:

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As I removed them, I could see that they were silicified. To be sure, I tested them on glass. Once confirmed, I gave them a muriatic acid bath. Here is the better one:

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Context is critical.

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Not too many people pay much attention to one of the earliest forms of multi-cellular life on this planet - unless its time to wash the car! biggrin.gif

So lets give em' some love..

I'll start with an example from the Ordovician - Dystactospongia...

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I had originally thought this was a bryo, but after examining it with a loupe I realized it was a sponge.

Back to the books (google) again! Now I need to look at my unusual bryo's to see if they could be sponges, I have things that look an awful lot like yours. THANKS! :D

Discovery consists of seeing what everybody has seen, and thinking what nobody has thought.

Albert Szent-Gyorgyi

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  • 9 months later...

Here are two cretaceous ones:

Coeoloptychium sulciferum ROEMER 1841

Campan, upper Crateceous

Both are from Coesfeld, NW Germany

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Edited by nils
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Hello!

Here 3 sponges

Primitive sponge : Stromatopora sp from the Silurian of Gotland, Sweden..11 cm high

Jerea clavata from the Coniacian of the middle of France...15 cm high

Colony of sponges comming from the french Jura, Oxfordian, Birmensdorf bioherme....35 cm in total

D

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Here are a few Pennsylvanian sponges I've posted in another thread. They are all from Kansas and Missouri near Kansas City....

Heliospongia ramosa

Quindaro Shale, Pennsylvanian

Miami County, Kansas

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Edited by Missourian
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Context is critical.

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More....

Heliospongia sp. (excavata?)

Argentine and Spring Hill Limestones, Pennsylvanian

Kansas City metro

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Edited by Missourian

Context is critical.

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