IsaacTheFossilMan Posted February 3, 2021 Share Posted February 3, 2021 Heya! This is a spherical convex structure found in the South of the England. Unfortunately, as I found it when I was very little, I cannot seem to recall the exact location, and, thus, the age. Originally, as a child, I crudely assumed it to be a mushroom... Ah, the wonders of child's minds... More recently, I conducted a study upon it, and, due to the septa and mouth-like crystalline structure at the top, I identified it as a polyp cup of a Rugosa coral. However, I am still unsure as to what it is. Any input would be greatly appreciated, cheers! ~ Isaac; www.isaactfm.com "Don't move! He can't see us if we don't move!" - Alan Grant Come to the spring that is The Fossil Forum, where the stream of warmth and knowledge never runs dry. Link to comment Share on other sites More sharing options...
Pemphix Posted February 3, 2021 Share Posted February 3, 2021 Button coral Link to comment Share on other sites More sharing options...
IsaacTheFossilMan Posted February 3, 2021 Author Share Posted February 3, 2021 15 minutes ago, Pemphix said: Button coral Okay, so my Microcyclus identification could have some truth to it? ~ Isaac; www.isaactfm.com "Don't move! He can't see us if we don't move!" - Alan Grant Come to the spring that is The Fossil Forum, where the stream of warmth and knowledge never runs dry. Link to comment Share on other sites More sharing options...
TqB Posted February 3, 2021 Share Posted February 3, 2021 It is coral, but scleractinian rather than rugose. Chomatoseris is a good possibility, from the Jurassic. Button coral is colloquial for this shape, and handy if you can't narrow it down at all, but it covers a multitude of unrelated genera from all of coral bearing geological periods up to the present. Microcyclus has a similar overall shape but is rugose with a very different detailed structure, from the Devonian. So you were on the right lines. (By the way, "polyp" just refers to the sea anemone-like soft tissue animal. "Corallite" is the bit that you find fossilised and is the exoskeleton.) 6 Tarquin Link to comment Share on other sites More sharing options...
IsaacTheFossilMan Posted February 3, 2021 Author Share Posted February 3, 2021 37 minutes ago, TqB said: It is coral, but scleractinian rather than rugose. Chomatoseris is a good possibility, from the Jurassic. Button coral is colloquial for this shape, and handy if you can't narrow it down at all, but it covers a multitude of unrelated genera from all of coral bearing geological periods up to the present. Microcyclus has a similar overall shape but is rugose with a very different detailed structure, from the Devonian. So you were on the right lines. (By the way, "polyp" just refers to the sea anemone-like soft tissue animal. "Corallite" is the bit that you find fossilised and is the exoskeleton.) Ah, thank you so much, that's awesome! I'm very grateful man, cheers!!! ~ Isaac; www.isaactfm.com "Don't move! He can't see us if we don't move!" - Alan Grant Come to the spring that is The Fossil Forum, where the stream of warmth and knowledge never runs dry. Link to comment Share on other sites More sharing options...
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