[coccoliths] Help with microfossil identification

[Young, Jeremy]

Interesting question - they are definitely terrestrial and shallow marine not usre if they occur in deep water, and I am fairly sure they have only a limited fossil record - see the link for a  recent paper with references to other fossil occurrences

https://www.cell.com/current-biology/pdf/S0960-9822(18)31610-5.pdf

On 3 Mar 2021, at 13:12, Juan Pablo Perez Panera <perezpanera at gmail.com<mailto:perezpanera at gmail.com>> wrote:

I found it in Middle Eocene siltstones. Marine paleoenvironment around 150 meters depth according to planktic forams relative abundance, but it also has high number of continental palynomorphs. Are those tecamebas continental or marine? And also, are there records of them in the Eocene?
Cheers,
Juan

El mié., 3 de mar. de 2021 06:22, Buckman, James O <J.Buckman at hw.ac.uk<mailto:J.Buckman at hw.ac.uk>> escribió:
No problem.  What was the depositional setting of this material and the sediment type?

Jim

Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10

From: Juan Pablo Perez Panera<mailto:perezpanera at gmail.com>
Sent: 02 March 2021 11:24
To: Mailing list for INA members and other scientists working with living or fossil nannoplankton<mailto:coccoliths at fcnym.unlp.edu.ar>
Cc: Buckman, Jim O<mailto:J.Buckman at hw.ac.uk>
Subject: Re: [coccoliths] Help with microfossil identification

****************************************************************
Caution: This email originated from a sender outside Heriot-Watt University.
Do not follow links or open attachments if you doubt the authenticity of the sender or the content.
****************************************************************

Nice. Thanks a lot. And many thanks to Jim!

El mar., 2 de mar. de 2021 05:31, Poulton, Alex <A.Poulton at hw.ac.uk<mailto:A.Poulton at hw.ac.uk>> escribió:
Hi. I spoke to Jim Buckman (copied in here) who is working on this group – he suggest its Tracheleuglypha, possibly T. acolla.
Best wishes, Alex

From: Coccoliths <coccoliths-bounces at fcnym.unlp.edu.ar<mailto:coccoliths-bounces at fcnym.unlp.edu.ar>> On Behalf Of Juan Pablo Perez Panera
Sent: 02 March 2021 03:22
To: Mailing list for INA members and other scientists working with living or fossil nannoplankton <coccoliths at fcnym.unlp.edu.ar<mailto:coccoliths at fcnym.unlp.edu.ar>>
Subject: Re: [coccoliths] Help with microfossil identification

****************************************************************
Caution: This email originated from a sender outside Heriot-Watt University.
Do not follow links or open attachments if you doubt the authenticity of the sender or the content.
****************************************************************

Hi Katarina,
I googled it and you are rigth!
Thanks!

El lun., 1 de mar. de 2021 17:51, doc. RNDr. Katarína Holcová, CSc. <katarina.holcova at natur.cuni.cz<mailto:katarina.holcova at natur.cuni.cz>> escribió:
It looks like  euglyphids (testate amoebae). In this case, plates are siliceous

Katarina

po 1. 3. 2021 v 20:53 odesílatel Juan Pablo Perez Panera <perezpanera at gmail.com<mailto:perezpanera at gmail.com>> napsal:
Hi all,

Does anyone have any idea what this could be?
I found them at the SEM in samples from the middle Eocene (Lutetian) of Austral Basin (Argentina). It seems that it is not birefringent as I didn't see them at the OM.

Cheers,
Juan


Dr. Juan Pablo Pérez Panera
CONICET
División Paleozoología Invertebrados,
Museo de La Plata, FCNyM, UNLP
Paseo del Bosque s/n, 1900, La Plata
Buenos Aires, Argentina
perezpanera at gmail.com<mailto:perezpanera at gmail.com>
_______________________________________________
Coccoliths mailing list
Coccoliths at fcnym.unlp.edu.ar<mailto:Coccoliths at fcnym.unlp.edu.ar>
https://webmail.fcnym.unlp.edu.ar/mailman/listinfo/coccoliths


--
doc. RNDr. Katarína Holcová, CSc.
Tel.: +420 221 95 1460
E-mail: katarina.holcova at natur.cuni.cz<mailto:katarina.holcova at natur.cuni.cz>

Komise garantů studijních oborů a programů; Ústav geologie a paleontologie
Univerzita Karlova v Praze
Přírodovědecká fakulta
Albertov 6, 128 43 Praha 2
www.natur.cuni.cz<http://www.natur.cuni.cz/>

Committee of Chairs for Study Fields and Programs; Institute of Geology and Paleontology
Charles University in Prague
Faculty of Science
Albertov 6, 128 43 Praha 2
www.natur.cuni.cz/en<http://www.natur.cuni.cz/en>
_______________________________________________
Coccoliths mailing list
Coccoliths at fcnym.unlp.edu.ar<mailto:Coccoliths at fcnym.unlp.edu.ar>
https://webmail.fcnym.unlp.edu.ar/mailman/listinfo/coccoliths

Founded in 1821, Heriot-Watt is a leader in ideas and solutions. With campuses and students across the entire globe we span the world, delivering innovation and educational excellence in business, engineering, design and the physical, social and life sciences. This email is generated from the Heriot-Watt University Group, which includes:

  1.  Heriot-Watt University, a Scottish charity registered under number SC000278
  2.  Heriot- Watt Services Limited (Oriam), Scotland's national performance centre for sport. Heriot-Watt Services Limited is a private limited company registered is Scotland with registered number SC271030 and registered office at Research & Enterprise Services Heriot-Watt University, Riccarton, Edinburgh, EH14 4AS.

The contents (including any attachments) are confidential. If you are not the intended recipient of this e-mail, any disclosure, copying, distribution or use of its contents is strictly prohibited, and you should please notify the sender immediately and then delete it (including any attachments) from your system.
_______________________________________________
Coccoliths mailing list
Coccoliths at fcnym.unlp.edu.ar<mailto:Coccoliths at fcnym.unlp.edu.ar>
https://webmail.fcnym.unlp.edu.ar/mailman/listinfo/coccoliths

<F29E4660D72A487E908C14F51769DEE1.png><F29E4660D72A487E908C14F51769DEE1.png>_______________________________________________
Coccoliths mailing list
Coccoliths at fcnym.unlp.edu.ar<mailto:Coccoliths at fcnym.unlp.edu.ar>
https://webmail.fcnym.unlp.edu.ar/mailman/listinfo/coccoliths

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://webmail.fcnym.unlp.edu.ar/pipermail/coccoliths/attachments/20210303/009ed6c6/attachment.htm>