piranha Posted June 10, 2011 Share Posted June 10, 2011 Ah it is so nice to see a revival for this topic! Let me share some more pictures of the Triassic Nymboida plants: the Nymboida Coal Measures (Clarence-Moreton basin, New South Wales) represent a southern extension of the Esk Trough (Queensland, Australia). The fossils from these deposits make up a Dicroidium-flora,typical for the Middle Triassic (Anisian-Ladnian) of Gondwana. Ginkophytes, ferns and cycads are also components of such assemblages. Dicroidium (Feistmantel) Gothan, 1912 Sterile fronds known as Dicroidium occur extensively in the Triassic rocks of continents that once made up Gondwana. It is the most common type of foliage that is believed to have been produced by the Umkomasiales (alternatively known as the Corystospermales). The order was quite varied and it is likely it evolved rapidly during the Triassic. Dicroidium foliage is characterized by a basal bifurcation of the rachis (fig. 1, white arrow). The genus includes a broad spectrum of leaf-forms, ranging from entire (e.g. Dicroidium dutoitii) to pinnate (e.g. Dicroidium odontopteroides; fig. 2) to bipinnate (e.g. Dicroidium dubium and Dicroidium zuberi; figs. 3 and 4). Pinnae are normally decurrent, positioned subopposite on the rachis and bearing pinnatified to needle-like pinnules. Venation varies from sphenopteroid to taeniopteroid. Figures 1-4: Dicroidium leaves. (1) D. cf. zuberi, basal bifurcation, (2) D. odontopteroides from the New Stanhope Mine, Tasmania, (3) D. dubium, and (4) D. zuberi, both from the Nymboida Open Cut, New South Wales, Australia. Figures 5-8: Other plants. (5) Dicroidium cf. odontopteroides var. remotum (Szajnocha) Retallack, 1977, (6) Kurtziana cf. cacheutensis (Kurtz) Frenguelli, 1942, (7) Sphenobaiera argentinae (Kurtz) Frenguelli, 1946, and (8) Asterotheca chevronervia Holmes, 2001 In the near future I expect to receive a couple of plant fossil specimens from the Upper Cretaceous of Aachen (Germany). Photo's come when they arrive... Please keep sharing your Mesozoic plant finds, they're worth a picture! Just spectacular Tim! Your collection is truly world-class sir! I posted a few Cretaceous examples as a preview and in response to your nice comment at the Oligocene thread. Actually better that way as these deserve a second round of applause and many more for sure. Btw, always great to see Professor Retallack in your citations- that man is truly amazing and a body of work beyond compare. Thanks so much for this fantastic post! Link to comment Share on other sites More sharing options...
Auspex Posted June 10, 2011 Share Posted June 10, 2011 from my understanding, it was a tropical forest to a coastal plain. From my link (emphasis mine): "Sedimentary rocks from the Triassic are found in the Connecticut River Valley in the central part of the state. These rocks were originally sediments deposited in alluvial fans, braided streams, and lakes that filled rift valleys. The rifting occurred as the supercontinent of Pangea began to pull apart." "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
paleoflor Posted June 10, 2011 Author Share Posted June 10, 2011 @ Auspex, fossilman7: thanks both for the information! I'm not very familiar with the geology of the United States, so links like this one are very welcome. Useful website, Auspex! @ Scott: Thanks! I just took a look at the Cretaceous examples you posted in the Oligocene thread. Really nice material! It can compete with the Jurassic and Oligocene material in beauty for sure. And what can I say? When writing about the Nymboida flora it is almost impossible to avoid citing Retallack, haha. He certainly has a huge publication list, with nice works in both palaeo-soils and fossil plants. Aachener Oberkreide: The plant fossil specimens I was expecting from the Late Cretaceous of Aachen (Germany) arrived today. Herewith some pictures. Figures 1-6: Plant fossils from the Aachen area. (1, 3, 4, 5) Conifer-like shoots, (2) Remnants of a (pine)cone, and (6) Wood fragments. This site is in German, but it is a beautiful resource for this type of fossils! Searching for green in the dark grey. Link to comment Share on other sites More sharing options...
Fossildude19 Posted August 29, 2014 Share Posted August 29, 2014 Don't know how I never saw this thread! Here are many of my nicer specimens: All from the Early Jurassic, Shuttle Meadow Formation. Regards, 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...
Ludwigia Posted August 29, 2014 Share Posted August 29, 2014 Wow!! That's a heap of wood!! I wish we had mesozoic plant layers like that in my viscinity! Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Plantguy Posted August 30, 2014 Share Posted August 30, 2014 Dang Tim! glad to see you bumped this thread again and added some really good stuff! Very nice collection of material. Congrats! I guess its been several years since my last post in this thread...whoa...where has the time gone...Lots of neat material in this thread. Its actually been a couple years since I snagged several specimens of this age since I'm not able to collect material in the field directly. Here's a couple of Jurassic Solnhofen Germany pieces. Both have been labeled Brachyphyllum and below is another Ginkgo huttoni mid-Jurassic specimen from Scarborough, Yorkshire, England. I am pretty sure I snagged some other stuff but its buried under piles of dang gastropods and pelecypods in the garage from the Tamiami Fm...Some day in another galaxy far, far away, there will be a man cave with a nice display case with lighted contents! Regards, Chris Link to comment Share on other sites More sharing options...
Ludwigia Posted August 30, 2014 Share Posted August 30, 2014 Hi Chris, That first one from Solnhofen is interesting. But for the dendrites you would hardly have noticed the plant. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Fossildude19 Posted August 30, 2014 Share Posted August 30, 2014 Very nice examples, Chris! Thanks for posting these. Regards, 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...
piranha Posted August 30, 2014 Share Posted August 30, 2014 It's always a treat to see some spectacular Mesozoic plants! Here are a few of my best examples. Mouse over the photos for the IDs. Australia - Jurassic Brazil - Cretaceous China - Jurassic France - Jurassic Oregon - Jurassic Link to comment Share on other sites More sharing options...
paleoflor Posted September 3, 2014 Author Share Posted September 3, 2014 Don't know how I never saw this thread! Here are many of my nicer specimens: All from the Early Jurassic, Shuttle Meadow Formation. Beautiful material, from a locality previously unknown to me. Thanks for sharing these! Searching for green in the dark grey. Link to comment Share on other sites More sharing options...
John K Posted September 3, 2014 Share Posted September 3, 2014 I don't think I'd seen this thread, either. I love fossil plants, but don't know much about them, other than what I've picked up here on the FF. I've found a few, and luckily found a couple on our last trip to Montana that fit into the Mesozoic. These are from the Fort Union shales in eastern Montana: Late Cretaceous: Platanus reynoldsii (thanks to pirahna for the ID)Brown, R.W. (1962) Not sure if this is the same thing; I don't think it's all there I've got a few more plant fossils, but they are from the Permian deposits around Topeka, Kansas and the Green River Miocene in Wyoming Link to comment Share on other sites More sharing options...
paleoflor Posted September 3, 2014 Author Share Posted September 3, 2014 I've got a few more plant fossils, but they are from the Permian deposits around Topeka, Kansas and the Green River Miocene in Wyoming You could start a separate topic on Permian Plants. I'd be very interested to see those... Chris and Scott, beautiful material! As always. It seems this topic is really alive and kicking (again). Super! A couple more Mesozoic specimens below. Cladophlebis denticulata (Brongniart) Nathorst 1876 from the Middle Jurassic (Northern Iran) Bernettia inopinata (Androstrobus-cone) from the Lower Jurassic (Bayreuth, Germany) Otozamites powelii (Fontaine) Berry 1927 from the Late Triassic (Arizona, USA) Dejerseya lunensis (Johnston) Anderson and Anderson 1989 from the Late Triassic (Queensland, Australia) Two Asterotheca species from the Middle Triassic (New South Wales, Australia) Dicroidium zuberi with Kurtziana cacheutensis from the Middle Triassic (New South Wales, Australia) Searching for green in the dark grey. Link to comment Share on other sites More sharing options...
paleoflor Posted September 7, 2014 Author Share Posted September 7, 2014 Wow!! That's a heap of wood!! I wish we had mesozoic plant layers like that in my viscinity! What about the area around Bayreuth, Bavaria; would the lowermost-Jurassic floras to be found there count? Searching for green in the dark grey. Link to comment Share on other sites More sharing options...
Ludwigia Posted September 7, 2014 Share Posted September 7, 2014 What about the area around Bayreuth, Bavaria; would the lowermost-Jurassic floras to be found there count? Thanks for mentioning that, but I do know about it. I've never had the chance to visit the site yet since it's a bit of a drive away from me. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Wrangellian Posted November 29, 2014 Share Posted November 29, 2014 I must have missed this one, too... Here are some self-found Cretaceous plants from Vancouver Island, I have probably shown these pics elsewhere already but they are all I have at the moment. Got to get taking more pics but the weather never cooperates.... Dryophyllum whitmani?, Campanian, old coal mine site near Nanaimo (famous for its coal mines in the early days) Flower or fruiting body? Santonian, from a site in the Cowichan Valley Glyptostrobus? Santonian, Mt Tzuhalem, Cow Valley 1) before excavation and loss of little piece in middle, 2) after! Zizyphus cretaceus? same site as above. I'm curious what that disc-shaped thing raising the leaf from underneath is! but I guess I'll never know unless I can x-ray it. Brachyphyllum sp, same site as above Link to comment Share on other sites More sharing options...
Plantguy Posted November 29, 2014 Share Posted November 29, 2014 I must have missed this one, too... Here are some self-found Cretaceous plants from Vancouver Island, I have probably shown these pics elsewhere already but they are all I have at the moment. Got to get taking more pics but the weather never cooperates.... Leaf2.jpg Dryophyllum whitmani?, Campanian, old coal mine site near Nanaimo (famous for its coal mines in the early days) SomFlower.jpg Flower or fruiting body? Santonian, from a site in the Cowichan Valley Tz635 Glyptost.jpg Tz635.jpg Glyptostrobus? Santonian, Mt Tzuhalem, Cow Valley 1) before excavation and loss of little piece in middle, 2) after! Tz47.jpg Zizyphus cretaceus? same site as above. I'm curious what that disc-shaped thing raising the leaf from underneath is! but I guess I'll never know unless I can x-ray it. Tz410Brachyphyllum1.jpg Brachyphyllum sp, same site as above Hey Eric, Looks like you've been doing very well with some Mesozoic plants up there. I'm envious. Very nice! Seeing your stuff got me to thinking again. On our last creek venture John had reminded me of some Cenozoic fossil sea grasses down here which I have never pursued...maybe I should investigate further as I need to do some plant collecting. I dug thru the Plio Pleistocene layers/piles in my garage and found several more Mesozoic plants which I bought several years ago that I'll post separately. Sorry I cant help with these ID confirmations...maybe Tim or Scott can add more. Thanks for showing us. Regards, Chris Link to comment Share on other sites More sharing options...
Plantguy Posted November 29, 2014 Share Posted November 29, 2014 It's always a treat to see some spectacular Mesozoic plants! Here are a few of my best examples. Mouse over the photos for the IDs. Agathis jurassica 1.jpg Agathis jurassica 2.jpg Australia - Jurassic Brachyphyllum obesum.jpg Cearania heterophylla.jpg Brazil - Cretaceous Ctenis japonica.jpg Podozamites lanceolatus.jpg China - Jurassic Zamites feneonis 1.jpg Zamites feneonis 2.jpg France - Jurassic Dicksonia oregonensis.jpg Polypodium oregonense.jpg Oregon - Jurassic I don't think I'd seen this thread, either. I love fossil plants, but don't know much about them, other than what I've picked up here on the FF. I've found a few, and luckily found a couple on our last trip to Montana that fit into the Mesozoic. These are from the Fort Union shales in eastern Montana: Late Cretaceous: Platanus reynoldsii (thanks to pirahna for the ID) Brown, R.W. (1962) Not sure if this is the same thing; I don't think it's all there I've got a few more plant fossils, but they are from the Permian deposits around Topeka, Kansas and the Green River Miocene in Wyoming You could start a separate topic on Permian Plants. I'd be very interested to see those... Chris and Scott, beautiful material! As always. It seems this topic is really alive and kicking (again). Super! A couple more Mesozoic specimens below. Cladophlebis denticulata.JPGCladophlebis denticulata (Brongniart) Nathorst 1876 from the Middle Jurassic (Northern Iran) Bernettia inopinata.JPGBernettia inopinata (Androstrobus-cone) from the Lower Jurassic (Bayreuth, Germany) Otozamites powelii.JPGOtozamites powelii (Fontaine) Berry 1927 from the Late Triassic (Arizona, USA) Dejerseya lunensis.JPGDejerseya lunensis (Johnston) Anderson and Anderson 1989 from the Late Triassic (Queensland, Australia) Asterotheca chevronervia.JPGAsterotheca trullensis.jpgTwo Asterotheca species from the Middle Triassic (New South Wales, Australia) Dicroidium Zuberi.JPGDicroidium zuberi with Kurtziana cacheutensis from the Middle Triassic (New South Wales, Australia) Scott/John/Tim, very nice material! I should be paying more attention and acknowledge the contributions/finds/additons. As I just mentioned in the previous post I recently dug down thru the piles of invert material a bit in my garage and got to some of the plant fossils. I actually now know I have a Triassic aged fossil (fossil wood segment from Arizona) which I had forgotten--embarrassing. Anyways, here they are. Most are are fairly common. I've taken a page from Scott and renamed the files with the ID info so you can mouse over the photos. Regards, Chris Link to comment Share on other sites More sharing options...
Wrangellian Posted November 29, 2014 Share Posted November 29, 2014 Thanks Chris, nice stuff there too. I am envious of anyone who has access to Jurassic and Triassic stuff (and Permian) - don't see much of it so it's nice to see. I see lots of Pennsylvanian and some Jurassic, Cret and Cenozoic, but not much from in between. Link to comment Share on other sites More sharing options...
paleoflor Posted November 30, 2014 Author Share Posted November 30, 2014 Thanks Chris, nice stuff there too. I am envious of anyone who has access to Jurassic and Triassic stuff (and Permian) - don't see much of it so it's nice to see. I see lots of Pennsylvanian and some Jurassic, Cret and Cenozoic, but not much from in between. Funny, that is more-or-less how I feel about the (Lower) Cretaceous. Searching for green in the dark grey. Link to comment Share on other sites More sharing options...
Wrangellian Posted November 30, 2014 Share Posted November 30, 2014 Funny, that is more-or-less how I feel about the (Lower) Cretaceous. What, that it's common or rare? Link to comment Share on other sites More sharing options...
paleoflor Posted November 30, 2014 Author Share Posted November 30, 2014 What, that it's common or rare? Rare. Well, at least in my registered collection. Currently, about 2.5% of my specimens come from the Cretaceous. By contrast, specimens from the Jurassic, Triassic and Permian make up about 10.1%, 8.9% and 8.5% of the registered material, respectively. Not everything is registered (I am a bit behind), but I guess it already shows that "rare" and "common" is a strong function of your location. For example, Carboniferous material makes up 50.4% of my registered specimens, and of that material 85.9% comes from Europe (relatively close by for me). This does not say anything about the rarity of Carboniferous material outside Europe, but it says all about my "arms-reach" as a collector. Only way to break this pattern is by traveling or trading (but then serous mass-limitations may apply; they do for me, at least). Searching for green in the dark grey. Link to comment Share on other sites More sharing options...
Wrangellian Posted November 30, 2014 Share Posted November 30, 2014 Right. The only thing easily accessible for me is the local Upper Cretaceous, both flora and fauna. I don't have an accurate accounting of my collection but I'll bet that I have a more uneven collection than you have, by age. Very little Carboniferous (none near me) and lots of Upper Cret, and Eocene from the McAbee site. Practically nothing else! Most of the Lower Cret plant material out there is from Brazil or China, correct? Link to comment Share on other sites More sharing options...
David in Japan Posted March 31, 2017 Share Posted March 31, 2017 A little up fos this topic as i upload some pics of plant G found in japan. Comptonia sp from himenoura formation, santonian. Araucaria sp, mifune group formation lower member, cenomanian. Zamites sp, same formation, cenomanian Leaf indet. Mifune formation, cenomanian ~~~~~~~~~~~~〇~~~~~~~~~~~~~ Warmest greetings from Kumamoto、 Japan Link to comment Share on other sites More sharing options...
Thaumatropian Posted July 13, 2017 Share Posted July 13, 2017 Was actually collecting Triassic plant fossils at Nymboida last Saturday. Would love help with identification. Am very much an amateur I'm afraid, but would love to know more. Will post some photos in a couple of days, once I've had the chance to take some proper photos. Link to comment Share on other sites More sharing options...
Fossildude19 Posted July 13, 2017 Share Posted July 13, 2017 12 minutes ago, Thaumatropian said: Was actually collecting Triassic plant fossils at Nymboida last Saturday. Would love help with identification. Am very much an amateur I'm afraid, but would love to know more. Will post some photos in a couple of days, once I've had the chance to take some proper photos. Welcome to the Forum. Please make sure to start a new topic, under the Fossil ID section, to get more eyes on it. Regards, 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...
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