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Auspex

Show Your Specimens From The Santana Fm.

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Auspex

The Santana Formation, in the Araripe Basin of N.E. Brazil, is world-famous for the richness and fine preservation of its Cretaceous fossils. Many fine specimens have been posted by our members, and I wanted to start a thread to collect a sampling here in one place.

I have only one fossil from the Santana (Crato Member, apx. 100 MYBP), but it's something on the rare side: a feather. More specifically it is a small (and incomplete) down feather, well preserved and showing a fine rachis, barbs, but no barbules.

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32fordboy

That's a nice feather! Here is rhacolepsis. Pretty common, I guess.

Nick

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Edited by 32fordboy

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Frank Menser
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baybay

Wow those fish fossil look so real...very cool fossils :wub:

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tracer

fossil feathers are really cool. something which seems so delicate and ephemeral became preserved "forever" until it could find its way into the life of a human who could appreciate it.

now i'll wonder forever what happened to the bird...did it just lose the one down feather whilst preening and never even notice it, or was there a whole fossilized bird a foot or so away from the feather that maybe you should go find?

it's almost friday

:o

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Terry Dactyll

Stunning fossils Guys !.... feathers & fish lol.... wonder if it was off a diving bird ;)

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Auspex

Here's a link to the Wikipedia article about this rich Lagerstatte:

WIKI LINK

Dinosaurs, pterosaurs, turtles, insects, and of course fish are all represented there.

Some of the fish have their stomach contents preserved, and insights into the paleoecology of the deposit have resulted from their study!

Anybody want to post their Santana insects? :)

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oilshale

Here is an Araripelepidotus temnurus, Agassiz 1841. Length is about 51cm or 20".

As usual from this site, I got the fish as a split geode. So I glued it together and used a grinding machine to remove as much as possible.

Then I prepped it from above with a pneumatic air scribe under a binocular.

Not yet finished - will still need another 20 to 50 hours or so. :rolleyes:

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Blastoid

I should tell you about the room stuffed with Santana fish I saw.

Completely untouched, unstudied, hundreds of them.

Shelves full.

Barrels full.

Fish a meter long.

Hundreds of insects.

A multi-million dollar collection, just sitting there, nobody on the staff particularly interested...

Makes you wonder.

Blastoid

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pleecan

I should tell you about the room stuffed with Santana fish I saw.

Completely untouched, unstudied, hundreds of them.

Shelves full.

Barrels full.

Fish a meter long.

Hundreds of insects.

A multi-million dollar collection, just sitting there, nobody on the staff particularly interested...

Makes you wonder.

Blastoid

let me guess ... Is this the ROM ?....

PL

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Blastoid

University of Guelph. Call 'em up and have a look if you're a Santana fan.

Supposedly a 7 million dollar collection was donated, by a guy looking at some jail time, they got half the collection, I forget the whole sordid tale.

Go here, click on University of Guelph button at top to see a hundred photos:

http://www.thefossilguy.co.nr/

The stuff is just sitting there, ignored.

Note the BARREL full of little squared-up fish plates.

Makes me a sad panda.

Blastoid

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pleecan

Wow... thanks for the link Blastoid... you need to hit the University of Guelph menu to see the +100 photos.... what a sight..... that is one big collection!

PL

Edited by pleecan

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Redlichia

Aspidorhynchus comptoni (Vinctifer comptoni) 36cm

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RJB

Aspidorhynchus comptoni (Vinctifer comptoni) 36cm

Very rarely do you see a comptoni with the 'complete shnout'. Thats one of the nicest ive seen. I have several fish from the santana, but lord knows where they are at the moment? Here is a picture of my comptoni. Still needs some prep work. Someday.

RB

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pleecan

Aspidorhynchus comptoni (Vinctifer comptoni) 36cm

[

Very nice collection.... nice sharp details to be seen. Thanks for posting.

PL

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Redlichia

Thanks to all,

Rb the your comptoni is very nice too,the same for the your interesting crabs:)

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bubonius

Aspidorhynchus comptoni (Vinctifer comptoni) 36cm

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very very intersting Red ..... <_< mmmmh not only a complete exemplar but twice :D

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Frank Menser

University of Guelph. Call 'em up and have a look if you're a Santana fan.

Supposedly a 7 million dollar collection was donated, by a guy looking at some jail time, they got half the collection, I forget the whole sordid tale.

Go here, click on University of Guelph button at top to see a hundred photos:

http://www.thefossilguy.co.nr/

The stuff is just sitting there, ignored.

Note the BARREL full of little squared-up fish plates.

Makes me a sad panda.

Blastoid

What a waste... :angry:

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pleecan

Anybody want to post their Santana insects? :)

How about a 40mm fish and 6mm insect combo.... surrounded with dendritic pseudo fossils. PL

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Edited by pleecan

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Auspex

Oooooo; that's a great association!

I note that the dendrites (manganese?) are formed on parts of the fish skeleton; I guess this shows that the bedding plane of the shale opened a bit before excavation.

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pleecan

The dendrites ( not sure the composition could be maganese compound)represents natures art work.... neat looking stuff... reminds me of graphtolites patterns from the ordovician. PL

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pleecan

Thanks Redlichia for the link and information.

Peter

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