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Showing results for tags 'porifera'.
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Hello, I live near west Jackson County, Missouri. I found this fossil while I was walking my dog. It was part of the landscaping for the front of a building that has been there for 20 years or more. No one knows the origin of the material for the landscaping. Lots of reading, I found most of the chert in the landscaping has crinoids as a point of the time period, Devonian? Can't find any photos to compare it with on the internet, been trying for 2 months, a crash course on paleontology 101. I see Missouri in a different light from it all. Can this be identified? Thanks for the opportunity to share.
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- coral
- devonian period
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Hi again, Didn't think I should bother you guys with another sponge, but this is a bit peculiar and I can't find anything about sponges on sticks? This was found in the Kristianstad Basin, Cretaceous period. It is heavily erroded and mineralized, but probably a sponge. It seems to have a circular growth around what seems to be a stick of some sort. They seem proprotional, so I figure they grew together, but they might not be the same spieces? (the stick + the sponge). The images does not make the fossil justice, but it is a very voluminoes sponge with bulges that reminds of glass sponge. The stick is circular in the bottom and more flatt in the top. It might not have reached tremendous heights...? Questions: Would a sponge grow on a stick? Why would a sponge need to reach height if it is not drawing energy from sunlight? How would a sponge like this pump water? I can't find any "sucking holes" Shouldn't a sponge with sticks be more branching? More than one branch? All the best/ Linus
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From the album: Sponges, Kristianstad Basin
Upper Campanian, Cretaceous I thought this was a Callopegma aucale, but now am unsure. (See discussion below) I've used this ref for identification ->LINK I've concluded from other sources that the area where this sponge was found - does indeed belong to the (lower) Upper Campanian. About 16cm at the base and 17.5cm at the diagonal. -
I came across this unusual fossil on a recent collecting trip to Southwestern Wisconsin. It was attached to a hash plate containing mainly brachiopod fragments. It appears to be some type of sponge that I have never encountered before. It is roughly the size of a tennis ball with an opening at the top. There is also a smaller round opening on one side that might have been from predation. Any thoughts on what this might be?
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Anyone have Hexactinellida (Glass Sponges) from Penn DIxie?
DevonianDigger posted a topic in General Fossil Discussion
Hello, all! I'm working on an article presently about the existence of glass sponges in the Hamilton Group in New York state. The publications that I have found, most notably, The Great Glass-Sponge Colonies of the Devonian; Their Origin, Rise, and Disappearance, (Clarke, 1920)1 dispute their existence in the Hamilton group altogether. Recently, an example of an indet. Hexactinellida was presented to me from the site, and mention has been made of several others over the past 20 years having been found. I am wondering if anyone here in their vast array of experiences has encountered similar examples at the Penn Dixie site. If so, would you be willing to share photos and your information about where they were found? Thank you in advance! -J 1John M. Clarke, The Great Glass-Sponge Colonies of the Devonian; Their Origin, Rise, and Disappearance, 28 The Journal of Geology, 25-37 (1920)- 10 replies
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- hamilton group
- hexactinellida
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Does anyone have access to this reference to help me ID Arizona Pennsylvanian sponges. Please PM me. Wewokella and other sponges from the Pennsylvanian Minturn Formation of north-central Colorado JK Rigby, SB Church Journal of Paleontology 67 (6), 909-916 Thanks, John
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Hi All! Some of you know me already, and I've been occasionally browsing the forum for years. I saw a couple of recent-ish threads that I wanted to comment on, so thought I should sign up at last... For those who don't know me, I'm a semi-independent researcher with honorary positions in Nanjing and Cardiff, while living for most of the year in the middle of nowhere (the wonderful little town of Llandrindod, central Wales). My main interests are the early evolution of sponges, worms, and early Palaeozoic ecology, but I basically like really old dead stuff, and the weirder the better. I've worked on a wide range of Lagerstatten, including the Hetang, Burgess Shale, Sirius Passet, Afon Gam, Fezouata, Llanfallteg, Llandegley Rocks, Llanfawr, and Anji biotas, so I tend to get around a bit when time and energy permit. I'm an old-fashioned palaeontologist, though, and am adamantly against the view that we now know the fossil record well enough to start concentrating on number-crunching. Everything I see on fieldwork suggests that, at least in the Ordovician, we don't yet understand even the basic diversity. That might possibly be correlated to studying a group that preserves largely as enigmatic blobs that everyone else ignores, but hey - it's a niche! The moral is, though, that amateur palaeontologists are increasingly vital in keeping the new finds pouring in. There's a vast amount out there left to discover. I'm not necessarily going to be able to keep up with everything on here, so please feel free to nudge me towards particular threads if you'd like my input! Looking forward to getting stuck in! Joe Botting
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- cambrian
- introduction
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I found a sponge in the Pennsylvanian Naco Formation north of Payson, Arizona. It may be the same species as an earlier find although instead of pancake form it is a conical form: http://www.thefossilforum.com/index.php?/topic/82186-knocking-about-the-naco-pennsylvanian-sponges-and-corals/&tab=comments#comment-871386 The first photo is of the convex outer surface. Part of top is broken off. Longest length of the sponge is 8cm. Any ideas as to identity? @Arizona Chris See photos in additional posts since I am doing this on a phone and cannot reduce file size.
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From the Great Limestone, Pendleian (Upper Mississippian) of County Durham, UK. One for @Spongy Joe and any other sponge experts out there. There appear to be no sponges (apart from Chaetetes) recorded from this well researched limestone but I've collected over thirty over the past few years. There are several different types, generally fossilised as broken fragments though these can be quite large (several inches across). This one is a curved sheet, like part of a vase or dish, about 10 - 15mm thick. The outer (convex) layer contains a good proportion of spicules showing five (and a few six) rays so could it be a heteractinid of some sort? The preservation is mostly calcite, perhaps original. Scale bar is 1cm long. Vertical section, showing disposition of tangential sections below. (specimen no. Sp. 13) Tangential section, cutting through outer surface on right and bottom (the orange layer, with smaller spicules than the internal ones). Closeups of tangential sections. Several five rayed spicules are visible along the edges (i.e. in the outer layer).
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- county durham
- great limestone
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Found it in Oligocene strata in Mississippi. Bay Springs, MS
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I need to identify this sponge. Waccamaw fm., Pliocene from Brunswick County, North Carolina Thats all I have to go on. If you know this species/genus or know someone who might I would appreciate it. Regards, Jim Wyatt Houston, Texas
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Well preserved sponges are rare in Arizona except for Actinocoelia maeandrina in the Permian (Leonardian) age Kaibab Limestone. I found well preserved ramose sponges with hollow interiors. Using HCl acid, my silicified sponge was dissolved out of the Leonardian Fort Apache Member of the Schnebly (formerly Supai) Formation, which is mostly limestone in the area. The member contains a rich molluscan fauna dominated by pelecypods and gastropods. Echinoid pieces are common. Coral, bryozoan and nautiloids are rare; sponges are previously unreported. My sponge may be a new species or may be an extension of range of a known species. Collected in August 2013. For more information on the fossils of the Fort Apache Member see: Winters, S.S., 1963, Supai Formation (Permian) of eastern Arizona: Geological Society of America Memoir, 89, 99 p.
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- arizona
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Cracov is full of Jurassic sponges in the walls. Can you tell more about this one? Could it be a sphinctozoan?
