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valh
Stromatoporoidea. Upper Devonian(Frasnian). Location:Voronesh region,Russia.
Longitudinal section.
IMG_75821.JPG 
Valerij
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CurtKnap
Now that's a beauty Valerij!

I like the crystal cavity too - looks like a gaping mouth.
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valh
Thanks Curt!
Valerij
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TqB
Beautiful stromatoporoids, Valerij!

This is a purchased specimen from Aferdou, Morocco.

I believe it is Heliolites porosa (the only one I've seen from there).

(Photographed dry, it has a natural polish.)

IMG_1990.jpg 

IMG_1991.jpg 

IMG_1992.jpg 

IMG_1992 (1).jpg 

Tarquin
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TqB
Maybe the same species as the last one, Heliolites porosa.

This one is a pebble from near Torquay, Devon, from an old collection.

IMG_1510.jpg 

IMG_1511.jpg 

IMG_1512 (1).jpg
Tarquin
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valh
Hi Tarquin! Excellent cross-section turned out! Superb specimen!
Valerij
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TqB
Thanks, Valerij! It was already polished, maybe more than 100 years ago...[smile]
Tarquin
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valh
South Timan,Russia. Upper Devonian(Frasnian).
Phillipsastrea ibergense. Diamter corallite 6-7 mm.
IMG_76191.JPG

IMG_76221.JPG

IMG_76371.JPG

IMG_76431.JPG

IMG_76511.JPG         
Valerij
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TqB
Very beautiful!
Tarquin
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CurtKnap
That is a magnificent specimen, Valerij! I've seen very similar corals from the Devonian of the USA.
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valh
Thanks Curt and Tarquin!

Phillipsastrea ibergense and Alveolites suborbicularis.
Upper Devonian(Frasnian).
Location:South Timan,Russia.
IMG_76621.JPG 
Diameter corallites Phillipsastrea - 5,0 mm.
Valerij
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CurtKnap
Very nice!
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valh
Thanks Curt!

Disphyllum kostetskae. Upper Devonian(Frasnian)
Locaition:South Timan,Russia.
IMG_76741.JPG 

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IMG_77001.JPG 
Diameter corallite 10 mm.
Valerij
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CurtKnap
Nice colony, Valerij! Interesting budding process shown too.
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valh
Yes,budding process is clearly visible.
Valerij
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valh
South Timan,Russia.Upper Devonian(Frasnian).
Phillipsastraea ibergense,Roemer(Pachyphyllum ibergense,Soshkina).

IMG_77431.JPG  IMG_77411.JPG  IMG_7736.JPG  IMG_77451.JPG
IMG_77751.JPG  IMG_77811.JPG  IMG_77851.JPG 
 
Valerij
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CurtKnap
More great examples, Valerij. Good sections for comparison too.
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valh
Thanks Curt!  For a long time I am working on this  section. No contrast material.
Valerij
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CurtKnap
Hi Valerij. I have the same problem (very little contrast) with a lot of my Silurian Wenlock Limestone corals.
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valh
South Timan,Russia,Upper Devonian(Frasnian).
Peneckiella fascicularis.
IMG_79321.JPG

IMG_790411.JPG

Diameter corallites 5-6 mm.   
Valerij
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CurtKnap
Fine specimen, Valerij.

The chain-like growth form in section reminds me of Siphonodendron.
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TqB
Lovely specimen and section, Valerij. I agree with Curt, very similar to Siphonodendron. I wonder if it is a possible ancestor?
Tarquin
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valh
Thanks Curt and Tarquin!  I agree,externaly the two are similar. Possibly distant ancestors lithostrotionid.

Peneckiella fascicularis(Soshkina) and Mastopora compacta(Tchernychev).

IMG_76851.JPG
Valerij
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CurtKnap
Another fine specimen, Valerij! You certainly have access to some very nice Devonian material.
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valh
Thanks Curt! It is a gift a good man with South Timan.
Valerij
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valh
Alveolites suborbicularis. South Timan,Russia,Upper Devonian(Frasnian).

IMG_77301.JPG

IMG_77321.JPG   
Valerij
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CurtKnap
Nice, crisply detailed specimen, Valerij.
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valh
Thanks Curt! 
Peneckiella fascicularis and Stromatoporoidea.
Upper Devonian(Frasnian). Location:South Timan,Russia.
IMG_77531.JPG

IMG_77571.JPG  Diameter corallites 6,0 mm.
Valerij
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valh
SORRY! Post 09/04/15 Phillipsastraea sp.  New identification  Donia russiensis,Soshk(Disphillia russiensis,Soshk)
Upper Frasnian coral biostrome in the Russkiy Brod quarry.
Valerij
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Lalipop
I've found the similar ones. I don't know much about it. May I ask, how old would that be and the exact ID please? Thanks
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valh
Hi Lalipop! " Palaeogeography, Palaeoclimatology, Palaeoecology" 424 (2015) 61–75

"Paleoecology and sedimentary environment of the Late Devonian coral
biostrome from the Central Devonian Field, Russia"
Michał Zatoń , Tomasz Borszcz , Błażej Berkowski , Michał Rakociński ,
Mikołaj K. Zapalski d, Andrey V. Zhuravlev

journal homepage: http://www.elsevier.com/locate/palaeo

Valerij
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valh
Alveolites suborbicularis.
Upper Devonian(Frasnian).Location:Voronesh region,Russia.

Click image for larger version - Name: IMG_90251.JPG, Views: 22, Size: 342.96 KB Click image for larger version - Name: IMG_90241.JPG, Views: 23, Size: 285.55 KB
Valerij
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TqB
Attractive specimen, Valerij, good to see a new one!
Tarquin
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valh
Thanks Tarquin!
Valerij
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valh
Tabulophyllum pseudosociale.
Upper Devonian(Frasnian).Location:Voronesh region,Russia.
Diameter corallites 10 - 16 mm.

Click image for larger version - Name: IMG_89901.JPG, Views: 21, Size: 366.87 KB Click image for larger version - Name: IMG_89741.JPG, Views: 21, Size: 348.76 KB
Valerij
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CurtKnap
That's a fascinating specimen, Valerij. Has it been airbraded?
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valh
Hi Curt!  What do you mean by airbraded,the contact of sample with air?
The sample was retrieved from a compact limestone block.
The reverse side of the sample.

Click image for larger version - Name: IMG_90301.JPG, Views: 18, Size: 344.42 KB
Valerij
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TqB
Beautiful specimen! Air abrading is a preparation method, like a fine sand blaster.
Tarquin
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CurtKnap
Sorry, Valerij, I should have been more explicit - and thanks for the clarification, Tarquin!

I think the reverse image shows that the surrounding matrix has indeed been removed to reveal the corals, whether by airpen and/or abrasion.
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valh
Thanks Tarquin! Thanks Curt!

No abrasive cleaning was used as I don’t have appropriate equipment.

I have cleaned the sample from limestone by hand with metallic tool very slowly and carefully.

Valerij
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CurtKnap
That must have taken a while by hand, Valerij; excellent results!
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valh
Thanks Curt! The main thing was to see the form of the colony.
Valerij
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valh
Syringopora fragilis,Aulopora,Rugosa.
Upper Devonian(Frasnian).Location:Voronesh region,Russia.
IMG_88071.JPG 
IMG_88091.JPG 
IMG_88181.JPG

Diameter corallites 1,0 - 1,2 mm.
Valerij
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CurtKnap
Nice specimen, Valerij, and good photos. Do you know what species the larger Rugosa are? Is that some parricidal splitting in the one shown in longitudinal section on the right of the first two photos?
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valh
Thanks Curt! This is one of the species Tabulophyllum. It was not possible to accuratelly identify.
I don't understand the last question. 
Valerij
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valh
The picture is unclear,but more like an example of non-parrisidal budding. The next foto:

IMG_88061.JPG

IMG_88141.JPG
 
 
Valerij
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