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Facultad de Ciencias Naturales y Museo - UNLP

[coccoliths] Danian calcareous nannofossil

Young, Jeremy jeremy.young at ucl.ac.uk
Fri Mar 7 11:46:41 -03 2025


Hi again  Vladimir
I can't really help with that -  haven't looked at enough Danian Ellipsolithus to say, and for me it looks like a fairly typical E. macellus. However, other people may be able to say something more useful
Jeremy

> On 7 Mar 2025, at 13:15, Мусатов Владимир <dr.musatov at yandex.ru> wrote:
> 
> ⚠ Caution: External sender
> 
> 
> Hi Jeremy,
> Thank you, I've already downloaded it)))
>  
> I have a question - is it always the case that the base of the NP4 zone contains uncharacteristic small Ellipsolithus macellus? My photo shows an Ellipsolithus macellus similar in appearance to the E. macellus in Plate 3 foto 36 of the Bown et al. paper I requested. These specimens do not look like the typical large E. macellus that occur in NP9 and NP11. Can these small forms be identified as E. macellus, or is it a different species?
> How do you think?
>  
>  
>  
> Musatov Vladimir
>  
>  
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