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Showing results for tags 'tree'.
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From the album: Carbondale, PA
Calamities sp., a bamboo-like plant closely related to modern horsetails with hollow, woody stem that grew more than 100 ft high (30m). Carbondale, PA Lewellyn Formation Pennsylvanian period 299-323 myo -
From the album: Carbondale, PA
Detail from previous image Carbondale, PA Lewellyn Formation Pennsylvanian period 299-323 myo -
From the album: Carbondale, PA
Carbondale, PA Lewellyn Formation Pennsylvanian period 299-323 myo -
From the album: Carbondale, PA
Carbondale, PA Lewellyn Formation Pennsylvanian period 299-323 myo -
From the album: Carbondale, PA
Unidentified species of petrified wood Carbondale, PA Lewellyn Formation Pennsylvanian period 299-323 myo -
From the album: Carbondale, PA
Calamities sp., a tree-like plant with hollow, woody stem that grew more than 100 ft high (30m). Carbondale, PA. Lewellyn Formation Pennsylvanian period 299-323 myo -
From the album: Carbondale, PA
Carbondale, PA Lewellyn Formation Pennsylvanian period 299-323 myo -
From the album: Carbondale, PA
Syringodendron sp. (Sigillaria family) Carbondale, PA Lewellyn Formation Pennsylvanian period -
From the album: Carbondale, PA
Finely parallel-veined leaves of a Cordaites plant alongside the branch or root of a giant Lycopod (aka scale tree or club moss). The latter could grow up to 50 m high! found in Carbondale, PA Lewellyn Formation Pennsylvanian (Upper Carboniferous) period 299-323 myo -
Kathleen B. Pigg of the University of Arizona notes that this "stem subsurface pattern that is sometimes called 'rabbit tracks'. The double track you see is probably a result of a pair of air channels that accompany the leaf trace through the cortex. The vertical ribs are produced by an increase of bark through secondary tissue production." The pair of sepicemns in the first image are the positive and negative impressions of the same piece. The second image is a detail from the same specimen.
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From the album: Carbondale, PA
Calamities sp., a tree-like plant with hollow, woody stem that grew more than 100 ft high (30m). Found in a tailings pile in Carbondale, PA. -
From the album: Nigel's album
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From the album: Plant Fossils
Lepidodendron sp. Location: Villablino, Spain Age: Carboniferous© @copy Olof Moleman
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Hi to everybody, I just found this fossil-looking sandstone from Pliocene. It looks like a the internal structure of trunk, but I don't know if it could be some kind of bioturbation or any other think. Any guesses? Thanks!
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A Weekend Visit To A Southeastern Pennsylvania Road Cut
hitekmastr posted a topic in Fossil Hunting Trips
A Weekend Visit to A Road Cut Near Our Home Nan was busy this weekend so I drove to a road cut on Route 422 south of Pottstown, PA - about 5 miles from our house. I had been told by a friend at the Delaware Valley Paleo Society that there wouldn't be any fossils here - from the geological record, I think this is part of the Gettysburg-Newark Lowland Formation which is described online as late Triassic. The shale is red with some green and gray mixed in here and there. Telling me that there wouldn't be any fossils here was a challenge I couldn't resist. So I decided to see if I could find anything in this very barren but geologically interesting formation. What I found were fossils and impressions of a tree and twigs that resemble Siggilaria (which were extinct by the Triassic I believe), and a few other trace fossils and what I assume are some mineralizations that look like leaves but probably aren't. I wonder what kind of tree this bark pattern represents...any ideas? The roadside exposure is a very steep slope covered with golf ball sized rubble and lots of larger rock formations protruding, here and there. The roadcuts are located along Route 422 several miles south of Pottstown, Pennsylvania. I studied everything that was visible, cracking lots of rocks to see what might be hidden. Nothing, no marine fossils, not even a freshwater clam. I began to feel that this might have been a dry area, or mostly dry area. Then I came across a narrow cascade of rubble that had eroded off the steep wall and noticed some red shale pieces that looked like smooth bark of some kind. On closer inspection, I discovered several pieces (many were fragmented) that turned out to be a grooved bark pattern. In the first fossil (1.1, 1.2 and 1.3 with backview and closeup - see below) you can see: a) the bark pattern which resembles Siggilaria including one branch node (the round circle) and you can also see at the top where the bark ridges begin to branch into a diamond shaped pattern. Although this is supposed to be a Triassic formation, the tree bark has a Carboniferous look, but I'm not familiar with Triassic trees. Here are the images of the bark sample: BARK 1.1 BARK 1.2 BARK 1.1 Back View BARK 1.1 CLOSE Bark 2.1 and 3.1, and Fossil 4a(front) and 4b (back) - These are additional samples of what appear to be bark and branches/twigs: BARK 2.1 BARK 3.1 FOSSIL 4a Front FOSSIL 4b Back Twig 5 - Here is what appears to be a twig and twig impression: TWIG 5 Not sure what this is: FOSSIL 6 I assume these are mineralizations (dendrites) that look like leaf impressions but are chemical, not fossils - note the shale color is different from the red shale above (labeled Mineralization 1 and 2): MIN1 MIN2 Anyway, I guess my point is that I visited a road cut that is close to home, easy to access, and where I was told there should be no fossils. I found quite a lot to look at and ponder, and best of all, despite being parked on the roadside for 3 hours, I wondered if I would receive a visit from curious police but not at all so I felt very comfortable, except for the times when I climbed some very steep sections and found it a bit tricky to make my way back down the steep crumbly slope (I got down by choosing a section that had small samplings and used those as grips on the way down). I'm still not sure what else might be here or at other roadcuts but I have a hunch that this must be what fossil hunting in "dry" tree and plant areas might be like, since all the sources claim that not many dry forests were preserved as fossils because there wasn't much mud in the dry areas and they almost needed to be buried in a rockslide or freak flood to be preserved. Paleobotanists also suggest that the fossil record is heavily weighted toward wetland plants and trees so anything that comes from what was originally "dry" forest or meadow is worth inspecting.
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This is the 5th in a series of fossil ID questions - this one relates to two stick shaped fossils collected on our Sept. 16 trip to the 380 million year old Devonian site in Juniata County, PA. Devonian plants and trees are hard to find in Pennsylvania because so much was underwater however there were sticks and twigs and stems that did sink into the mud and get preserved. The question is, did we find two of those during our Juniata trip? Are these stick shaped fossils from plants or trees, or something else? Opinions, please... This stick shaped sample has a long thin piece extending at the bottom which appears to be part of the main fossil, which may (or may not) offer a clue: Here is another fossil from the same site/trip which has a similar form factor - it is in green shale - this bulges out a bit at the base:
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Hey Everyone! Can someone tell me what type of tree or plant this leaf is from? I found it in my creek in northern VA. Thanks.
