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Showing results for tags 'brachiopoda'.
Found 68 results
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revista espanola de Paleontologia,extra/1992 Un cas remarkable d'epigenie chez une notanopliide(chonetacea,Brachiopoda) du Devonien de Bolivie epigenieaberradevonidiagenesrevesp(biomintapho)bolivamericatapho18. bRacheboeuf.pdf First off the bat:THIS deserves to be read A:burial in the sediment B:replacement of the secondary calcite layer by silica C: dissolution of carbonate of the secondary layer(NOT recrystallized),formation of clay minerals D: final state:dissolution of the external mould of both valves Selective,rapid centripetal diagenesis NB: spiriferids in the same concretion nearby do NOT show this form of preservation morphology: the decalcified specimens are SMALL and have a thick shell
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- brachiopoda
- chonetoidea
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The rhizome layer of Posidonia oceanica: an important habitat for Mediterranean brachiopods Marine Biodiversity (2019) 49:2467–2472 Paolo G. Albano & Martina Stockinger Albano-Stockinger2019habitecolbrachioprecentticle_TheRhizomeLayerOfPosidoniaOcea.pdf
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Help request! I am putting together a tool for judging rock age based on very crude, whole-rock, hand-sample observations of fossil faunas/floras -- the types of observations a child or beginner could successfully make. I view this as a complement to the very fine, species-level identifications commonly employed as index fossils for individual stages, biozones, etc. Attached is what I've got so far, but I can clearly use help with corals, mollusks, plants, vertebrates, ichnofossils, and the post-Paleozoic In the attached file, vibrant orange indicates times in earth history to commonly observe the item of interest; paler orange indicates times in earth history to less commonly observe the item of interest. White indicates very little to no practical probability of observing the item of interest. Please keep in mind that the listed indicators are things like “conspicuous horn corals,” purposefully declining to address rare encounters with groups of low preservation potential, low recognizability, etc. Got additions/amendments, especially for the groups mentioned above? Toss them in the comments below! Thank you..... https://docs.google.com/spreadsheets/d/1tVm_u6v573V4NACrdebb_1OsBEAz60dS1m4pCTckgyA -
I found this apparently silicified pedicle valve as an erratic boulder. The age is unknown, but presumably Ordovician or Silurian. Provenance of Baltica (found in Poland, but in gravel parking lot). Any clues on the order? The rest of the shell is hardly preserved. Can you help to verify my anatomical identifications?
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harrington cambrian1670-1739-1-PB.pdf Horacio J Harrington Paleontologia del Paleozoico inferior de la Argentina I: Las faunas del Cambrico medio de San Juan Revisto del Museo de La Plata,T II,pt 11(Paleontologia) less than 2,5 MB NOTE: in spanish edit: Diacritics omitted
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- brachiopoda
- arthropoda
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Dear USA Brachiopoda enthusiasts, Could you see these images please? What is your expert idea about ID? I know that could be difficult from images. Thank you for any help you can offer.
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- brachiopoda
- ordovician
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Dear USA Brachiopoda enthusiasts, Could you see these images please? What is your expert idea about ID? I know that could be difficult from images. Thank you for any help you can offer. Ricardo
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- mississippian
- devonian
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here Dorothy Hill The Productinae of the Artinskian Cracow Fauna of Queensland University of Queensland papers,vol.3,n.2/1950 size: about 9,5 MB RECOMMENDED!!* * Dorothy Hill ()AND very good plates,IMHO
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EASTON W.H.Easton: Carboniferous Faunas and Formation of Central Montana A study of the stratigraphic and ecologic associations and significance of fossils from the Big Snowy group of Mississippian and Pennsylvanian rocks Geological suvey Proferssional paper n.348/1962 Number of pages 157 PLATE two: stratidistribplate-2.pdf PLATE ONE(correlation/logs) plate-1.pdf to be used with some care with regard to (at least)the taxonomic aspects
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- invertebrate
- mollusca
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Callovian Brachiopoda for trade SPECIMENS ALREADY TRADED
ricardo posted a topic in Member Fossil Trades Bulletin Board
Last weekend I collected a few large Callovian Rhynchonellida. I will trade these for Atrypida and/or Spiriferida. Thank you. ps. I have other Brachiopoda species from same spot.- 13 replies
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- palaeozoic
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Gaspard Daniele Gaspard Growth stages in Articulate brachiopod shells and their relation to biomineralization in: Brachiopods through time Proceedings of the Second International Brachiopod Congress,Dunedin,New Zealand/1990 edited by D.I.Mckinnon,D.E.Lee,J.D.Campbell recommended? you bet Do not simplistically assume more or less linear relations in the accretionary growth of marine invertebrates!!! I have posted before on the relation between size/shape/ontogeny/life history/ecology( I think)
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- brachiopoda
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g2006n3a3.pdf Statistical Comparisons of Late Caradoc(Ordovician) brachiopod faunas around the Iapetus Ocean,and Terranes located around Australia,Kazakhstan and China Yves Candela Geodiversitas,28/3,2006
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- biogeography
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From the album Upper-cretaceous invertebrates from SE Pyrenees
Almerarhynchia n.gen. virgiliana n.sp. (Calzada, 1974) From Maastrichtian limestones -
From the album Upper-cretaceous invertebrates from SE Pyrenees
Almerarhynchia n.gen. virgiliana n.sp. (Calzada, 1974) From Maastrichtian limestones -
From the album Upper-cretaceous invertebrates from SE Pyrenees
Almerarhynchia n.gen. virgiliana n.sp. (Calzada, 1974) From Maastrichtian limestones -
First trip of the year today to the "Fossil Gardens" at Paulding, Ohio. This is quarry spoil of mid-Devonian age, Silica Formation. There was not a cloud in the sky, and temps were relatively warm at 43 deg. F. I was the only one there for most of the day, and it was extremely peaceful. What a great day. Here are pics of some of the finds. These are "farm fresh" and haven't even been washed yet, but I did take time to polish some horn corals and get some acetate peels (couldn't wait). A large Cystiphylloides rugose coral.
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- gastropoda
- silica fm
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Thanks to @minnbuckeye who gave me a site suggestion to an Iowa Devonian locality when I was on my way to the White River Formation of Nebraska, I was able to satisfy my palaeozoic fix this past June. Here are my finds (scale in photos is cm/mm): Orthospirifer cf. O. cooperi Strophodonta sp. Cranaena sp.
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Ordovician or Silurian erratic boulder from central Europe thus of Baltica provenance. Any ideas on the ID?
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From the album Upper Visean fossils of Ireland
Gigantoproductus latissimus found in Menlough quarry, Galway. 108 mm by 51mm -
Years of collecting the strand line in Asbury Park, NJ, have revealed a lot of the rarer elements of the modern shallow marine fauna, as well as of the Cretaceous marine biota whose fossils wash up there. But this month I was astounded to come across this shell, which I believe to be a craniid brachiopod's dorsal valve. Based on its condition I can't be sure whether it's modern, subfossil, or even Cretaceous. It's matrix-free and shows signs of having been encrusted by cheilostome bryozoa. Can someone confirm or refute this ID? Can someone with expertise in the Cretaceous coastal plain comment on the likelihood of this specimen's possible Cretaceous origin? Thanks!
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Hello, I am hoping someone familiar with the brachiopods of the Mineral Wells Fossil Park, TX (Late Pennsylvanian) and vicinity, might recognize this taxon. It looks to me like an Athyrididae. Perhaps Cleiothyridina sp.?. @BobWill ? I also have some Punctospirifer cf. P. kentuckiensis from the same site. Here's the specimen in question. Thanks for any help.
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MONUMENTAL NB:11 Mb a class act,this one. A timely update about a very,very,classical(stratotypical)area in Germany The systematic part(orthotetids) might be useful as well
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From the album Ordovician Fossils (by Peat Burns)
Rafinesquina ponderosa (Brachiopoda) Late Ordovician: Richmondian Stage St. Leon, Indiana, USA© 2017 Peat Burns - All Rights Reserved
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From the album Ordovician Fossils (by Peat Burns)
Platystrophia (=Vinlandostrophia) ponderosa (Brachiopoda) Late Ordovician: Maysvillian Stage Kentucky, USA© 2017 Peat Burns - All Rights Reserved
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