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Guguita2104

Very nice and informative topic Troodon:fistbump:...I've to confess I know almost nothing about Portuguese dinosaurs:blush:.

Lourinhã's formation produces some very nice and big bivalves, however there are some spots where fossil collecting is not allowed (I think ).

 

Regards,

 

 

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LordTrilobite

Good stuff as always.

 

It's easy to forget that Europe was so close to America at the time. Makes a lot of sense that there were similar animals on both sides of the pond.

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HamptonsDoc

Thanks for the info! Do you have anymore info on the eggs from the area?

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Susan from PA

Awesome and very informative post!  Thanks so much for sharing!  I will no longer complain about digging in heavy clay! :)

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Fruitbat

Great post Troodon!

 

HamptonsDoc...try this link  LINK TO RESEARCHGATE PAGE for information on Lourinhã dino eggs.

 

-Joe

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Vieira

Fantastic post Troodon

 

It´s very interesting to see this information about the dinossaurs of my country :)

 

Very quality in the pictures and information.

 

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HamptonsDoc
10 hours ago, Fruitbat said:

Great post Troodon!

 

HamptonsDoc...try this link  LINK TO RESEARCHGATE PAGE for information on Lourinhã dino eggs.

 

-Joe

Thanks for the link!

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Runner64

I envy the people that are able to hunt here! Not only are the fossils there very unique and cool, but it's also a very pretty location and a nice collecting site. Thanks for sharing Troodon.

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Troodon

Trying to ID teeth from this region can be difficult.  The paper I posted of northern German theropods teeth can be helpful since the families and age overlap.

 

 

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sandgroper

Another fascinating thread.

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ElToro

Yea, it seems hard identifying these fossils. Any ideas about these 3 Portugal Louhrinã teeth? Any ideas would be appreciated. Thanx in advanve!

 

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Troodon

Very difficult to tell much from just tips.  You need to see the shape of the crown, serration count and where they are in the carinae to aid in the diagnosis.  Sharper pictures,  and closer images of your third tooth might help with an ID.  Small teeth are very hard to ID not a lot diagnostic about them especially if they are premaxillary teeth.

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ElToro

Thanx Troodon. 

My mate is in the process of taking some photos under a lens. She isn't the best at taking photos...

However, on the first two teeth the serrations count is 26 and 27 per cm. I do believe the third has 4 serrations along the length.

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jpc

Is it legal to collect fossils in Portugal.  And export?  I ask as a guy who likes to go to Europe every now and then....

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Troodon
9 hours ago, ElToro said:

Thanx Troodon. 

My mate is in the process of taking some photos under a lens. She isn't the best at taking photos...

However, on the first two teeth the serrations count is 26 and 27 per cm. I do believe the third has 4 serrations along the length.

Serration count needs to be taken at midline but like I said without the rest of the tooth is difficult to diagnose.  That third tooth looks like a Premax but is hard to tell from the photos.  If it is they all look the same and there is nothing diagnostic about them.

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Troodon
9 hours ago, jpc said:

Is it legal to collect fossils in Portugal.  And export?  I ask as a guy who likes to go to Europe every now and then....

I don't think so but it is definitely the case in Spain.

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Johannes

It is illegal to export fossils from Spain, but generally specific laws are only applied to dinosaur remains. Same case for Portugal (and authorities are very sensitive to this topic there, from my own experience with older scientific collections incuding single dinosaur bones and teeth, but also with "new" material). Even collecting such material in strata known for dinosaur material is problematic there and can cause in uncomfortable situations for collectors.

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Troodon

I've updated the theropod section, second page, to provide more detailed information to help in tooth identification.  Isolated teeth from this fauna are very difficult and complex to identify and may be impossible to get down to a species level.  The theropod diversity in this fauna is large and poorly understood.

 Partial teeth or those that do not have reasonably complete serrations on both carinae will be extremely difficult to diagnose. 

 

I post this information since it's interesting and the fauna associated with the Lourinha Formation formation is very similar to that of the Morrison Formation.  This information should be useful in identifying those teeth or at least getting close since so little is published from the Jurassic of North America.

 

 

 

 

 

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Pixpaleosky

Thank you very much for this very informative post. Now I would like to go there for my next vacations ;)

Have you been to these cliffs by yourself ? Do you know how hard is it to find and to excavate the fossils ?

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Troodon
49 minutes ago, Pixpaleosky said:

Thank you very much for this very informative post. Now I would like to go there for my next vacations ;)

Have you been to these cliffs by yourself ? Do you know how hard is it to find and to excavate the fossils ?

No I never collected in this area.  It's my understanding that collecting is not easy, the cliffs are dangerous and lot of the finds are encased in boulders that require extraction tools.

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hxmendoza

Frank, 

Which paper has these specific illustration in it? I didn’t see these in the three papers you cited.

Thanks.

9B53DCCF-AF2C-4DCB-9E79-1F9E199CC04C.jpeg

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