Mollusca (Pt 1): Characteristics & Classes of Mollusks- Invertebrate Paleontology | GEO GIRL

[@mano1ification]

You're videos are as elegant , well categorised and comprehensive as the periodic table behind you. Thank you for sharing this awesome content.

[@GEOGIRL]

Thank you so much! ;D

[@frankforce9241]

Very well organized! Thanks Frank

[@brahimbest1]

I'm doing a pre-revision before practical work session, and honestly, your video is helping me a lot. such an excellent educational video❤😍

[@GEOGIRL]

Thanks, that is so great to hear, I am glad I could help! :)

[@MaryAnnNytowl]

I'm glad I found and subbed to you. I needed more channels to follow that cover deep-time and ancient critters like you do. I love the subject matter! 😍

[@GEOGIRL]

Thanks so much! I am so glad you enjoy my content ;D

[@JoesFirewoodVideos]

GEO girl is back. I look forward to the rest of the series. 16:33 of watch time.

[@GEOGIRL]

Thanks! I am glad you enjoyed it! More coming soon:)

[@gingazaurus]

Your enthusiasm is contagious.😄

[@GEOGIRL]

Yay! That is always what I shoot for ;D

[@barbaradurfee645]

Nice quick overview!!

[@Alberad08]

Thank you for creating & sharing this! BTW when sepias were tested against octopuses, regarding abilities for problem solving or intelligence, they did fare even a little better!

[@KLIMETUS]

Am a geology student from india.. Watching your videos are interesting one for me.. ❤

[@zakirkhanali323]

Great job

[@MikeJustine-z7o]

Am studying Animals due to my course "wildlife management "so i wanna know more about mollusca 🙏🏼

[@ripdoggie]

Love your videos! Keep up the good work!

[@GEOGIRL]

Thanks so much! I am so glad you like them :D

[@KLIMETUS]

Good and informative 🙌🏼

[@momosketches_dk7743]

My understanding was that 70% of all mollusks had shells of aragonite exclusively, but from this video it sounded more like they had both aragonite and calcite? Btw, your videos are really informative and well made, thanks for sharing your knowledge

[@GEOGIRL]

Good point! I should've made the distinction that not all mollusks secrete shells in the same way as the example I showed here. Many secrete both like this, many secrete only aragonite, and I am sure some secrete only calcite (but I don't know for sure about the latter). It all depends on the species and what's thermodynamically favorable in their environment. And if the seawater composition (relative Ca/Mg ratio) changes, some can even adapt to secrete more of either calcite or aragonite because they favor different Ca/Mg ratios (see this video: kzbin.info/www/bejne/goKueJuGit2lprc for a better explanation of how Ca/Mg ratios matter for CaCO3 secreting organisms). Also, thanks so much for your comment and support, I am so glad you like the videos ;D

[@momosketches_dk7743]

GEO GIRL thankyou, my professor is really particular about us having to remember what form of calcium carbonate every phylum mineralizes in hahaha. Anyway i just wanted to say that the parts where you go over the timeline for every group in the end of each video is genious, ive taken screenshots of them all for revision, exam is in a couple days😅

[@GEOGIRL]

@@momosketches_dk7743 Oh yay! I am so glad you like that part! Yea, I had a very particular paleo professor too haha, best of luck with the exam!! 👍

[@uaulearners]

I am enjoying your from india your language a little bit troubled me but a great work in field of Geology thank you.

[@GEOGIRL]

Thanks so much for leaving the comment, I am so glad you can get value from my videos all the way in India! What is it you do? Are you a geology student?

[@uaulearners]

@@GEOGIRL yes, b.sc. student. I wanted to know which country have this beautiful teacher. I searched many times to found content in my language(HINDI) but didn't. But thank to God I able to found you as a teacher.

[@GEOGIRL]

@@uaulearners Awesome! Good luck with your studies :) I live in the united states. Wish I could teach you in your language, but I am glad that you get value from my videos even though they are in English haha ;)

[@uaulearners]

Philips ma'am I have a lot of doubts in Geology am I able to get solution by you? If yes then which social media platform. I am hopefully seeing to your reply.

[@GEOGIRL]

@@uaulearners Hey, I apologize, but I am a little confused about what you are asking, could you rephrase it?

[@halwestmohammed2075]

Thanks alot for video😍

[@GEOGIRL]

Thanks for the comment, I am so glad you enjoyed it! :D

[@oliverweeweepie3132]

Hi, is there DNA for the modern mollusks?

[@GEOGIRL]

Hi, yes we have genetically mapped out the relationships of modern mollusks using DNA. It is just that we cannot go back that far to do that for ancient mollusks.

[@deepakgehlot795]

insanely helpful

[@GEOGIRL]

That's great to hear! I am so glad it helped :)

[@deepakgehlot795]

Please make video on evolution of Foraminifera

[@GEOGIRL]

@@deepakgehlot795 Yep! I plan to do so :) I have arthropods, echinoderms, and the foraminifera coming after mollusks!

[@deepakgehlot795]

Thanks.. Eagerly waiting for that 😃

[@George-yn8po]

impressive; are you a Phd. or just a hobbyist?

[@GEOGIRL]

Thank you! I am currently a second year PhD student :)

[@gabeesp9654]

@@GEOGIRL wow :)

[@CaptainMir]

Good luck

[@GEOGIRL]

Thank you! :)

[@FinalLugiaGuardian]

So did the last common ancestor of snails, clams, squid, and octopuses have a brain? Clams don't seem to have a brain.