Ammonite identification - Cretaceous Paja Formativo

[ColombianFossils]

Hi all, I picked up a lot of partial ammonites and ammonite imprints on my latest fossil hunting trip. I was wondering if anyone may have an idea as to which types of ammonites I've come across. They come from the Paja formation in Colombia which is part of the Cretaceous. Thanks in advance 

[Myrmica]

You could try: Patarroyo, Pedro (2009). "Amonitas de un nivel de alta energía del Barremiano inferior en la Formación Paja de los sectores de Villa de Leyva (Boyacá) y Vélez (Santander)". Boletín de Geología 31: 15–21.

[Ludwigia]

In my opinion, you would need the help of someone who is familiar with this site and fauna. Identifying scraps of ammonites is a difficult job, particularly when many similar species are in question. Ooops...Myrmica has just given you a good option.

[Fossildude19]

Paja Formation Ammonites.

[ColombianFossils]

Thanks so much guys! Amazing resources, I'll be poring over these all day

19 minutes ago, Myrmica said:

You could try: Patarroyo, Pedro (2009). "Amonitas de un nivel de alta energía del Barremiano inferior en la Formación Paja de los sectores de Villa de Leyva (Boyacá) y Vélez (Santander)". Boletín de Geología 31: 15–21.

Thank you! That paper couldn't be any more relevant, absolutely spot on.

[ColombianFossils]

14 minutes ago, Fossildude19 said:

Paja Formation Ammonites.

Thank you Fossildude!

[ColombianFossils]

Turns out there was a complete one hiding amongst my finds!