Cnidaria: Corals, Jellies, Anemones- Invertebrate Paleontology | GEO GIRL

[@gregboettcher8015]

This was one of the best videos I found on reefs throughout history. Appreciate the excellent timeline, as well as the detail on rugose and tabulate corals. Totally underrated channel, keep up the good work.

[@GEOGIRL]

Wow, thank you so much! I am so glad you like the video, and my channel as a whole. I really appreciate your support! :)

[@gregboettcher8015]

@@GEOGIRL Suffice to say I'm looking into Paleozoic reefs, and your video was the right video at the right time.

[@GEOGIRL]

@@gregboettcher8015 That's great to hear! I have a few more videos about the Paleozoic era on my channel if you are ever wanting more answers ;)

[@paleocat6354]

One of my absolute favorite youtubers.

[@GEOGIRL]

Aw, thank you!

[@biancabuttner219]

Amazing 😍 your videos explain everything that I didn’t understand in my stratigraphy class. I love it! Thanks for doing a great job.

[@GEOGIRL]

I am so glad to hear that my videos have been helpful for you, thank you so much for the comment! :D

[@orinovian7716]

Hello there. I m lapidary's artists life in Sumatera island, Indonesia. My favorite material are pet coral.. They so beautiful agatized coral fossil. Thanks your video help me to understanding about coral.

[@trevinwhiteley2730]

Hermatypic actually means reef building, not all of them have zooxanthellae. I just found your channel and I love your videos!

[@amitlohare]

Very nice lecture on cnidaria ..Too much helpful

[@canadiangemstones7636]

An excellent introduction to a group of under-appreciated fossils! Petoskey stones are the most famous, but Microcyclus is coolest.

[@michaelbourandas7236]

Thank you for your clear, concise explanation of the different kinds of coral and for showing examples of the corals.

[@chonsworth9129]

This video needs more views! Wonderful information density; I'm trying to learn for reef aquarium.

[@GEOGIRL]

Thank you! Ohhh That sounds so cool, I want a reef aquarium! haha

[@paleocat6354]

Excellent material!

[@GEOGIRL]

Thanks so much! Glad you found it helpful :)

[@sanoyeee9220]

Thank you sm 💓💓💓💓💓 i have a final exam the day after tomorrow with foram,radiolaria,sponges, coelntrata and bryozoa, and even tho i have studied all of it i still return to ur vids and get extra informations 💓💓 so much love for you please don't stop posting such an amazing vids 💓(and if you have a public Instagram or twt acc let us know so we can follow you there too) have a great day 🌺

[@GEOGIRL]

Thank you for this comment! I am so happy to hear that you have found these videos helpful! Best of luck with your exam! (btw I have an instagram @geogirl_gram but I currently don't have the app on my phone haha beacuse I have been a bit busy lately, but I will eventually get back on to that account and be active again, so you can follow me over there if you want ;)

[@RamonK100]

Thanks for this amazing review! Great job :)

[@GEOGIRL]

Of course! Thanks for the comment, I am so glad you found it helpful/interesting :D

[@RamonK100]

@@GEOGIRL Indeed. It was really helpful for my invertebrate stem groups exam. Thanks a lot :D

[@oliverweeweepie3132]

Awesome video, thanks for mentioning coral bleaching, its important!

[@Adam_First]

Great video Happy Halloween 🎃

[@myramadd6651]

Just purchased a small fossil of a rugose coral. I can see the setpum and fossula at the head, so I know its fairly complete, but the pattern on the outside is covered in these swirling rosettes.

[@GEOGIRL]

Swirling rosettes? interesting, I have never heard of that, do you have a picture?

[@jh8177]

I found some of these fossils in my backyard the other day! Not sure what I should do with them, any advice? I put a video of them up on KZbin, it's my only video.

[@GEOGIRL]

Those are so beautiful! And they all look as though they are tabulates (so over 250 million years old!) And the first one even looked like it had a mollusk inside one of its holes like it had bored into the coral and then got preserved there, so cool! I mean my advice would be to clean them off (just water and soap is fine, don't use vinegar or any acid because the fossil material (calcium carbonate) will dissolve pretty easily) and make yourself a rock shelf haha :D

[@GEOGIRL]

Ok, so the more I look at the second two, they look more like scleractinian corals than tabulate, so my first instinct may have been wrong, in which case they aren't older than 250 my, but they could still be pretty darn old, and I think they are all still awesome! haha

[@jh8177]

Thanks for the info 😁 I'll try cleaning them up.

[@jh8177]

Sorry to bother you again but I just found a different looking coral. Could you please educate me on what it is? 😀

[@GEOGIRL]

Oh my gosh, where do you live?! I gotta go there haha! This one is definitely a brain coral, I am not sure what the exact species is, but it is part of the Scleractinian group. Maybe part of the Diploria genus?

[@sekaiomiruhitokaminoyume5426]

Rugosa are not estinc I found the bridge between them and the modern ones on a rugosa stone

[@Geo_Mind]

Why Rugose are known as tetracorals?

[@GEOGIRL]

I am not sure, I have actually never heard that, but if I had to guess, I would say it's because the scleractinians have six-fold symmetry and calling the rugose corals tetracorals helps to differentiate them from the hexagonally symmetrical scleractinian corals. :)

[@Geo_Mind]

@@GEOGIRL Thanks , is it because of the arrangement of septa in rugose corals, because they are arranged only in four quadrants?

[@GEOGIRL]

@@Geo_Mind Yea, I mean that is my assumption, but I could be wrong haha.

[@GEOGIRL]

@@Geo_Mind I just know that scleractinian septa are arranged in sixes. :)

[@Geo_Mind]

@@GEOGIRL Thanks 🙂

[@amitlohare]

Can you please provide you please provide your social media platforms on which I can directly ask you my doubts

[@GEOGIRL]

Well, I really don't have any other social media platforms that I actually check (I know I am so bad about that, I am working on it!), but you can ask me here in the comments :) Or if you'd rather ask me elsewhere, you can email me (my email is listed on the about tab of my channel page). :)

[@YunxiaoChu]

Sea anemones and hydras lack a medusa

[@baustaurus2518]

Hi i have 4 fossil of scteractinia and more fossilize marine shell

[@gabeesp9654]

Corallite is the most interesting..

[@gabeesp9654]

Any info on how coral reef develop ?

[@carllewis166]

i have several fossil jellies if you need pictures. from illinois

[@GEOGIRL]

Oh wow cool! I would love to see them, you can send them to me through instagram @geogirl_gram or through email [e-mail]. Thanks! :D

[@lexzbuddy]

You sould set up a coral tank and watch. You begin to realse their importance the more you watch, read and learn.

[@RommelSanico]

🤗🙏♥️😊😅

[@joeyhinds6216]

...Cnidaria to smell my feet