Partial Ammonite, Urchin & others - Magoito Beach - Portugal

[Roald]

Hi all,

 

My first visit to Portugal and couldn’t resist spending some quiet time at the cliffs of Magoito beach. I’ve read that bivalves are common finds, but ammonites are harder to spot.

 

Very happy to have struck some luck with this partial ammonite specimen.

 

Can anyone help ID this one? Was also wondering where the reddish color may come from, since the soil is really grey/dull limestone. No traces of iron/bauxite to be seen for miles.

 

 

[JamieLynn]

I am not familiar with Portugals geology and a quick search didn't give me much info, but if it's Cretaceous era, which I suspect it is, that ammonite looks like an Engonocerid and the round echinoid looks like something from the Phymosomatoida order. Not knowing enough about the geography, that's as close as I can get.  The other urchin is definitely a heart urchin of the Spatangoida order and the gastropods sure look like the Tylostomas we find in Texas (of which all of the above fossils are found, if slightly different genera or species, hence why I can with at least some certainty say, if they are Cretaceous, that's what they might be.) 

[Roald]

6 minutes ago, JamieLynn said:

I am not familiar with Portugals geology and a quick search didn't give me much info, but if it's Cretaceous era, which I suspect it is, that ammonite looks like an Engonocerid and the round echinoid looks like something from the Phymosomatoida order. Not knowing enough about the geography, that's as close as I can get.  The other urchin is definitely a heart urchin of the Spatangoida order and the gastropods sure look like the Tylostomas we find in Texas (of which all of the above fossils are found, if slightly different genera or species, hence why I can with at least some certainty say, if they are Cretaceous, that's what they might be.) 

Thank you!