CamelbackMike Posted November 10, 2018 Share Posted November 10, 2018 Is this a fossil (like a bryzoa) on a shell, or one fossil, or a fossil shell with a crack? Found in the shale in PA near the Delaware Water Gap NRA - Devonian ? 1 Link to comment Share on other sites More sharing options...
Coco Posted November 10, 2018 Share Posted November 10, 2018 Hi, Size ? Coco ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici Mâchoires sélaciennes récentes : ici Hétérodontiques et sélaciens : ici Oeufs sélaciens récents : ici Otolithes de poissons récents ! ici Un Greg... Link to comment Share on other sites More sharing options...
Innocentx Posted November 10, 2018 Share Posted November 10, 2018 Wow, that's cool. It looks like a feeding trace on shell material. "Journey through a universe ablaze with changes" Phil Ochs Link to comment Share on other sites More sharing options...
Darktooth Posted November 10, 2018 Share Posted November 10, 2018 Hmmm......... very interesting! I like Trilo-butts and I cannot lie. Link to comment Share on other sites More sharing options...
ynot Posted November 10, 2018 Share Posted November 10, 2018 It has the appearance of an trace fossil to Me, but not sure. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
CamelbackMike Posted November 10, 2018 Author Share Posted November 10, 2018 The pix is not so good but here is the ruler next to the fossil. Link to comment Share on other sites More sharing options...
Bronzviking Posted November 10, 2018 Share Posted November 10, 2018 I'm not seeing shell and the two objects don't look like they belong together. I am seeing a plant or insect fossil in the cracked portion, but that's just a guess. Link to comment Share on other sites More sharing options...
abyssunder Posted November 11, 2018 Share Posted November 11, 2018 Almost looks like plant material, maybe a leaf with nice venation. " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
Fossildude19 Posted November 11, 2018 Share Posted November 11, 2018 Two fossils - Since the area has Devonian marine fossils, ... I'm thinking Reptaria stolonifera on a cephalopod or gastropod shell. 1 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
CamelbackMike Posted November 11, 2018 Author Share Posted November 11, 2018 The picture I sent with the ruler does not really show the background smooth "shell" of the other pictures. But within feet of this piece I have found brachipods, bivalves, trilobites, crinoids, bryozoa, so I assume all is a marine environment. 1 Link to comment Share on other sites More sharing options...
Wrangellian Posted November 11, 2018 Share Posted November 11, 2018 Interesting! I was thinking something like Hederella but was unsure. I think Tim's idea is closer (and he would be more familiar with that fauna than I am). I just found your other post with a similar item and the same explanation. Link to comment Share on other sites More sharing options...
piranha Posted November 11, 2018 Share Posted November 11, 2018 The hederelloid “bryozoans” are now interpreted as: "colonial, phoronid-like invertebrates with retractable lophophores." Taylor, P.D., & Wilson, M.A. 2007 Morphology and affinities of hederelloid “bryozoans”. In: Bryozoan Studies: Proceedings of the 14th International Bryozoology Conference, 15:301-309 PDF LINK 1 Link to comment Share on other sites More sharing options...
KimTexan Posted November 11, 2018 Share Posted November 11, 2018 I’m no expert, but looking at the 2 suggested examples, it just doesn’t look quite like it. The differences I see are 1 The prominent long central stem, which I don’t see present in either example. But it does seem the 2 examples must have a central stem, vein or whatever so they can’t be ruled out. 2. The density of the lophophores looks very different as does the angle coming off the shaft. This could just be an artifact of how it was preserved though. 3. The tips of the protrusions are pointed rather than rounded as in the lophophore examples. Again it doesn’t exclude it and it could be an artifact of preservation. 4. There are no other overlaying lobes or branches In the example given there are many overlaying lobes or branches of it in the examples. Still it could be the proposed. I don’t have anything to offer as an ID otherwise Link to comment Share on other sites More sharing options...
hndmarshall Posted November 11, 2018 Share Posted November 11, 2018 could the main object be bone or even egg shell? as for the other it almost looks like two millipedes or centipedes fossils.....just my observation Link to comment Share on other sites More sharing options...
Innocentx Posted November 11, 2018 Share Posted November 11, 2018 Here are two examples from the forum that seems to have more of a central 'column' than some other examples of reptaria stolonifera. The second post from Pennsylvania comes closest IMO. 1 "Journey through a universe ablaze with changes" Phil Ochs Link to comment Share on other sites More sharing options...
KimTexan Posted November 11, 2018 Share Posted November 11, 2018 It could be Reptaria. I’m What about something like Aplacophoran or the ctenidia (gills) of chitin? I don’t know if either of those were present in the Carboniferous though, but I believe they were. Image from here: http://rspb.royalsocietypublishing.org/content/279/1732/1259.figures-only I was wondering, are these areas similar to the main specimen in question? They almost look like the little the little narrow, pointed protrusions. 1 Link to comment Share on other sites More sharing options...
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