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  2. How to decipher scientific notation?

    Mea culpa. Please do not use as an example of correct form for italicizing and ignore the formatting glitch in the collections. It will automatically italicize cf. and sp. when entered in the species field. Everything is also italicized in the genus field too including punctuation such as a question mark. Only the specific and generic names should be italicized. A partial solution would be to turn off the auto italicize feature and then manually italicizing the proper parts.
  3. Indeed! But both of you are presenting us (the rest of the world) the marvelous world of Mazon Creek fossils. Thank you so much for that, @Nimravis, @RCFossils! Franz Bernhard
  4. Today
  5. Upper Miocene coprolite-like fossil ?

    any other sugestion except coprolite ? plant material fossil , non biological formations ?
  6. Upper Miocene coprolite-like fossil ?

    Thanks for the id , of the snail . Didn't know that species , and was wondering if it was a freshwater species
  7. My trilobite of the week.

    Midweek bonus trilobite #84 is my smallest Cyphaspis trilobite, Cyphaspis carrolli from the Haragan Formation of Black Cat Mountain, Clarita, Oklahoma. This is Early Devonian in age.
  8. How to decipher scientific notation?

    A minor note: cf. or sp. are not italicized.
  9. Let's see your latest mailbox score!

    A close up of the second cystoid:
  10. Let's see your latest mailbox score!

    Hello everyone, As promised here are my new friend from St.Petersburg: 1. A pair of incomplete Illaenus trilos, but one has a pretty pygidium and the other a very nice thorax. 2. An Asaphus trilo just as complete as the two before it. 3. Another Illaenus but this one is deceptive, the image makes it look similar to the others in size when it is truly a monster, it's about the size of the first three put together, would have been my largest trilo if it was complete. 4. The last Illaenus, this little roller is the best preserved of all the trilobites the only damage I see is a part of the "cheek" is detached on the left and most of the eye is missing in that same place. The last two are pretty little cystoids
  11. A few fossils in need of IDs from Penn Dixie

    I also found this thing, It has the lines that often appear on trilobite fossil, the term escapes me right now but they are visible in the image, I do not recognize the shape.
  12. A few fossils in need of IDs from Penn Dixie

    Hi guys, Sorry for the delay I got a better picture of the coral: I do not think this is the septa as it appears to be on the outside of the outer shell. @Shamalama
  13. How to decipher scientific notation?

    At least from what I've read, uncertain genera are often denoted using questions marks, so Cerithium? barionnenne is a species uncertainly assigned to the genus Cerithium. Often this use refers to groups of known fossils rather than individual specimens. For example, Branchiocaris is a genus of arthropod originally described from the Burgess Shale. However, identical carpaces have been found from the Chengjiang biota in China, but none of the soft body parts have been preserved there as they are in Burgess Shale specimens. So carpaces from Chengjiang localities are listed as Branchiocaris? yunnanensis, since these specimens most likely all belong to the same species but there is uncertainty in assigning them to the genus Branchiocaris from the Burgess Shale. On the other hand, cf. can be used for both groups of fossils and individual specimens. This term is often used when specimens are not well preserved or complete enough for a species level identification. For example, I recently found a partial shark tooth of the genus Petalodus. The only such species known from this locality is Petalodus ohioensis, and the crown fragment I have looks identical to crowns of complete specimens of Petalodus ohioensis from this locality. However, as I don't have the whole tooth, I cannot assign it to a species with certainty, so I would label it Petalodus cf. ohioensis.
  14. Do these look like Pliosaur teeth?

    Do these two fragmented teeth look like they could be from a Pliosaur? one is 3.7cm and the other is 2.8cm. Both come from the Goulmima region in Morocco. Thanks.
  15. Chunk o’ sumpin big!

    Chinny-chin-chin of yore. No tooth = raw deal.
  16. Potential bone cluster - Glenafric concretion

    @Doctor Mud Was great meeting up and going for a hunt together, if it wasn't for you saying it might be something good I might just have left this concretion behind! I want to say there are similar shapes in the two samples, but will have to take it past the museum to get some definitive info - maybe they can do a CT scan of it That other concretion we found has a crack running through it, might be an easy job to crack it open!
  17. Is this a fossilized egg or some kind?

    Thanks for the welcome and for the info:)
  18. I agree that this looks like a piece of carbonized wood or plant matter.
  19. Unique Mazon Creek

    Thanks for the reply. I hadn't heard of acorn worms before and now that I looked at some that show a "pinched collar", I can see how it could possibly be a worm. I was wondering if the single strand hanging down was a tentacle but maybe that's where the decay come in? I must admit though, I'm not usually squeamish and have no problems touching earthworms or leeches, but some of the nonfossilized images online were grossing me out! If it is a worm, this is the first I've found-I haven't had any worms yet. Wait. . .
  20. Unique Mazon Creek

    Thanks! It's great to be normal (sometimes). Lucky for me I have an extra refrigerator for bulk items such as orange juice, apples, oranges and, concretions! Whatever it is I think it is one of my favorites.
  21. I agree and will add to your pieces if I have examples. Though I collect and love Mazon Creek fossils, you are really into them far more than I have ever been, and you can speak eloquently about the different species- I commend you for that.
  22. Dinosaur bone?

    No idea what its from
  23. Shark Tooth Identification Help

    Yes. The great white evolved serrations around 6 million years ago. Your tooth is probably 3-5 million years old.
  24. They are both quite nice. The second one has interesting preservation. Thanks for sharing. Hopefully this string of posts will also help as an identification guide. The more specimens that can be added the better.
  25. Chunk o’ sumpin big!

    Good question! I believe that foramina presence and position would be fairly consistent within species. They allow nerves and blood vessels to pass through. But then again, it doesn’t matter what I believe. Maybe one of the experts can chime in on this
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