[coccoliths] Help with microfossil identification

Thu Mar 4 19:18:51 -03 2021

Dear Juan,
I wanted this opportunity to propose as soon as I saw the picture. The
preservation was excellent and these types of thecamoebians practically do
not preserve in fossil record

Katarina

čt 4. 3. 2021 v 21:08 odesílatel Juan Pablo Perez Panera <
perezpanera at gmail.com> napsal:

> Thanks to all for the information, papers and discussion.
> The sample came form an outcrop near a river in Tierra del Fuego Island.
> So, according to what you all said, it most probable that the Thecamebans
> are contaminated. Still, it is weird since I prepared a little fresh piece
> of the sample and smashed it in the mortar. It shouldn't be contaminated.
> The entire sample was fresh and collected digging in the outcrop. It was
> clean, no dirt...
> 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
>
>
> El mié, 3 de mar. de 2021 a la(s) 12:24, doc. RNDr. Katarína Holcová, CSc.
> (katarina.holcova at natur.cuni.cz) escribió:
>
>> Continental. There are extremely rare in Eocene based on my knowledge
>>
>> Katarina
>>
>> st 3. 3. 2021 v 14:12 odesílatel Juan Pablo Perez Panera <
>> perezpanera at gmail.com> napsal:
>>
>>> 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>
>>> 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 <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 <coccoliths at fcnym.unlp.edu.ar>
>>>> *Cc: *Buckman, Jim O <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>
>>>> 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> *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>
>>>> *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> 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> 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
>>>>
>>>> _______________________________________________
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>>>> Coccoliths at fcnym.unlp.edu.ar
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>>>>
>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> doc. RNDr. Katarína Holcová, CSc.
>>>> Tel.: +420 221 95 1460
>>>> E-mail: 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
>>>>
>>>> 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
>>>>
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>>>>
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>>
>>
>> --
>> doc. RNDr. Katarína Holcová, CSc.
>> Tel.: +420 221 95 1460
>> E-mail: 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
>>
>> 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
>> _______________________________________________
>> Coccoliths mailing list
>> Coccoliths at fcnym.unlp.edu.ar
>> https://webmail.fcnym.unlp.edu.ar/mailman/listinfo/coccoliths
>>
> _______________________________________________
> Coccoliths mailing list
> 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

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

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
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