Bob Clouser Posted September 2 Share Posted September 2 (edited) Back in August I spent about an hour at a new site for me: along NY Rte 9W opposite and a little north of Glenerie Falls. Mostly limestone. I think it's mapped as Onondaga but I'm not sure. Early or middle Devonian. Below are some pictures. I was hoping some of the experts could suggest identification for them. Any help is appreciated. Lots of spiriferid brachiopods. Two trilobite pygidia. One I think is Phacops. The other I'm not sure: Dechenella, Dalmanites, or Odontochiles. And a tiny little brachiopod with both valves. Thanks, Bob Edited September 2 by Bob Clouser add descriptive text 4 Link to comment Share on other sites More sharing options...
Darktooth Posted September 2 Share Posted September 2 You have some pretty decent finds, congrats! I like Trilo-butts and I cannot lie. Link to comment Share on other sites More sharing options...
Fossildude19 Posted September 2 Share Posted September 2 Nice finds, @Bob Clouser! That site exposes the Glenerie Limestone, which is Lower Devonian in age. It's part of the Tri-states group. See my post HERE. The first trilobite pygidium is most likely Synphoria stemmata. You can check out Jeffery P's Lower Devonian album for ID's on your brachiopods. Or Tidgy's Dad's Devonian Topic. 1 1 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 IPFOTM -- MAY - 2024 _________________________________________________________________________________ "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...
Jeffrey P Posted September 3 Share Posted September 3 Your brachiopod with both valves is Leptocoeila flabellites. It is an Atrypid brachiopod. The spirifer brachiopods include Acrospirifer arrectus and Howellela cycloptera (Lower right hand corner of first photo). From your specimens and photos, it's hard though to tell which is which. I think Tim got the trilobite IDs correct. Congratulations on your finds and thanks for sharing. 2 Link to comment Share on other sites More sharing options...
Quarryman Dave Posted September 3 Share Posted September 3 The photo on top is the dalmanitid trilobite anchiopsis anchiopsis, missing the pygidium spine. It occurs in the lower middle devonian limestone. Nice finds! Quarrycomber Link to comment Share on other sites More sharing options...
Fossildude19 Posted September 3 Share Posted September 3 8 hours ago, Quarryman Dave said: The photo on top is the dalmanitid trilobite Anchiopsis anchiopsis, missing the pygidium spine. It occurs in the lower middle devonian limestone. Nice finds! The ID I got from Piranha on these is Synphoria stemmata. I think there had been a name change for these at some point. 1 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 IPFOTM -- MAY - 2024 _________________________________________________________________________________ "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...
piranha Posted September 3 Share Posted September 3 Anchiopsis is not present in the Glenerie. The typical synphoriine dalmanitid is: Synphoria Lespérance, P.J., Bourque, P.A. 1971 The Synphoriinae: An Evolutionary Pattern of Lower and Middle Devonian Trilobites. Journal of Paleontology, 45(2):182-208 2 Link to comment Share on other sites More sharing options...
Quarryman Dave Posted September 3 Share Posted September 3 Thanks for correcting me. But they look very similar 1 Quarrycomber Link to comment Share on other sites More sharing options...
piranha Posted September 3 Share Posted September 3 1 hour ago, Quarryman Dave said: But they look very similar The pygidium is very similar and a future revision could determine that Anchiopsis is a junior synonym of Synphoria: "The conventional concept of the Devonian synphoriine Anchiopsis Delo, 1935 appears to be incompatible with the holotype of the type species, judging from the early illustrations of the specimen, and the genus could be a synonym of Synphoria Clarke, 1894. ...that most specimens that have been assigned to Anchiopsis are not conspecific with the holotype of Anchiopsis anchiops, and that Anchiopsis might be a junior synonym of Synphoria. These issues can only be resolved by thorough revision of Anchiopsis including restudy of the type specimens of the type species as well as those of ‘Dalmanites (Chasmops)’ anchiops var. sobrinus and ‘Asaphus’ laticostus, but that is beyond the scope of the present work." Holloway, D.J., Scott, B.M. 2022 Needmorella, A New Trilobite Genus of the Synphoriinae (Dalmanitidae) from the Lower–Middle Devonian of West Virginia. Journal of Paleontology, 11 pp. [Published in print in 2023, vol. 97, no. 2, pp. 355-365.] https://doi.org/10.1017/jpa.2022.96 2 Link to comment Share on other sites More sharing options...
Quarryman Dave Posted September 3 Share Posted September 3 I guess they can't determine that until complete specimens are found? Quarrycomber Link to comment Share on other sites More sharing options...
piranha Posted September 3 Share Posted September 3 21 minutes ago, Quarryman Dave said: I guess they can't determine that until complete specimens are found? The problem is the concept of Anchiopsis Delo 1935 does not match with the holotype of the type species. There are enough specimens....Synphoria and Anchiops have already been described and are currently valid taxa. Since David Holloway highlighted a potential revision, hopefully we can look forward to another excellent paper in the not too distant future. 2 Link to comment Share on other sites More sharing options...
Bob Clouser Posted September 4 Author Share Posted September 4 Thanks everyone! Would you say the second pygidium is Phacops (or is it called something different nowadays?) Link to comment Share on other sites More sharing options...
Bob Clouser Posted September 4 Author Share Posted September 4 On 9/2/2024 at 9:26 PM, Jeffrey P said: Your brachiopod with both valves is Leptocoeila flabellites. It is an Atrypid brachiopod. The spirifer brachiopods include Acrospirifer arrectus and Howellela cycloptera (Lower right hand corner of first photo). From your specimens and photos, it's hard though to tell which is which. I think Tim got the trilobite IDs correct. Congratulations on your finds and thanks for sharing. Do you mean the tiny one? Link to comment Share on other sites More sharing options...
Fossildude19 Posted September 4 Share Posted September 4 7 hours ago, Bob Clouser said: Do you mean the tiny one? No the other. The tiny one is probably a Proetida trilobite, possibly what was once known as Phacops logani. Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 IPFOTM -- MAY - 2024 _________________________________________________________________________________ "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...
Bob Clouser Posted September 4 Author Share Posted September 4 16 hours ago, Bob Clouser said: Do you mean the tiny one? Oh, I was referring to the tiny brachiopod. Is that what you meant was Leptocoeila flabellites? It's plano-convex. 1 Link to comment Share on other sites More sharing options...
Jeffrey P Posted September 5 Share Posted September 5 5 hours ago, Bob Clouser said: Oh, I was referring to the tiny brachiopod. Is that what you meant was Leptocoeila flabellites? It's plano-convex. Yes, the tiny one and also the one below it in matrix. Both are the Atrypid, Leptocoeila. 1 Link to comment Share on other sites More sharing options...
Bob Clouser Posted September 7 Author Share Posted September 7 Hey, I wanted to thank everyone for their help. I live in eastern MA and there isn't much fossil collecting around here. I used to live in PA and NJ, where you could fossil collect every weekend. There's also a lot of new genus and species names I'm not familiar with. But it's fun to get back in to this hobby. Link to comment Share on other sites More sharing options...
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