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Showing results for tags 'markings'.
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Came across this piece of petrified wood awhile back and was just noting the odd red markings in the second photo. Any idea what would cause such unique markings on petrified wood? I've never seen such before...
Hello, I have a lot of oyster halves, maybe 60-80 and way too many fragments, however I haven't the single clue how they would look as a whole. There seem to be 5 categories of halves: the "half mango" (usually very big and thick), "the rippled shallow plate" (usually thin, but many layers), the symmetrical ones with even left and right sides (usually half the size from the previous), the round fist like ones with curved ending, and the stretched ones. Below I'm showing one, which a) has some interesting attach-marks and b ) even tho it is a "half mango style" inside it appears to have a "rippled shallow plate, which is smaller, and does not have the same attach marks. It is also not so well preserved. Is this accidental? Are those two types the usual two valves of a bivalve? Any help is very appreciated thanks. below the most accurate look of the marks, they look and feel like a row of teeth of sorts and the inside oyster location of most of the oyster finds (in relation to the sea) its about 5km
EnglishGrace posted a topic in Fossil IDHello Please could you tell me what these marks are on this rock I found on the Northumberland coast? Is this a type of mudstone? Please tell me everything you can about what these marks are, what made them, how, when, etc? Is this a rare or common find? On two of the close-ups you can see that there are longitudinal lines within the markings (if this helps the ID). Also, why are the markings a copper-brown colour? Could they be a result of prehistoric mud worms? Today I found another circle marked rock, but this time the mark is white with no discernible details. Is this the same as the above; if so, then why the colour difference? Sorry this is such a tiny image for basic reference only (due to the 2MB file limit on posts). Thank you very much.