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Posts treating: "CENTRAL NEW YORK"

Friday, 05 December 2014

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Lindstroemella sp. brachiopod from the Centerfield Mbr. 

Views of the Mahantango [2014-12-05 09:01:00]  recommend  recommend this post  (189 visits) info

 Devonian; US
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The partial shell below is likely from an inarticulate brachiopod called Lindstoemella sp.  It came from the Centerfield mbr. of the Ludlowville Fm. near Fayette, NY.  This would have been the top valve of the animal since the bottom valve was likely cemented to a hard surface. It is interesting to note the differences in the rock type of the Centerfield member between two geographically distant locations. Normally I collect fossils from this rock unit that are eroding out of a grey [...]

Favosite turbinatus coral from the Onondoga Formation 

Views of the Mahantango [2014-08-05 09:01:00]  recommend  recommend this post  (110 visits) info

 Devonian; US
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Prior to finding the specimen below, Favosites turbinatus was a species that I'd found only in Givetian aged rocks. This specimen was found in the Edgecliff member of the Onondoga Formation south of Syracuse, NY. The fossil is somewhat cramped looking so let me walk you through the pictures.This is a view of the bottom of the coral. This is the side that would have been lying in the mud. Note that in this view the corrallites appear smooth but without an epitheca as though they were in contact [...]

Atrypa reticularis brachiopod from the Onondoga formation 

Views of the Mahantango [2014-08-03 09:01:00]  recommend  recommend this post  (667 visits) info

 US
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The gigantic brachiopod fossil shown below is an Atrypa reticularis that I found in the Edgecliff member of the Onondoga formation.The size is rather remarkable to me but seems to be a similar trend in other brachiopods that I found at the same site. I guess the environment was rich enough to support individuals for a long period of time and storm events or predators were few.My initial ID was confirmed after reading  - STRATIGRAPHY OF THE ONONDAGA LIMESTONE (DEVONIAN) IN CENTRAL NEW YORK [...]

Coenites? coral from the Onondoga formation 

Views of the Mahantango [2014-08-01 09:01:00]  recommend  recommend this post  (94 visits) info

 Devonian; US
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I found the plate shown below in a quarry south of Syracuse that exposes the Edgcliff member of the Onondoga formation (Devonian, Eifelian stage). It was the only piece I found with such densely packed corals. I'm not entirely sure on the ID but a review of - STRATIGRAPHY OF THE ONONDAGA LIMESTONE (DEVONIAN) IN CENTRAL NEW YORK By William A. Oliver, Jr (Bulletin of the Geological Society of America VOL. 66. PP. 621-662. JULY 1954). leads me to believe these could be Coenites sp.

Heterophrentis prolifica from the Onondoga formation 

Views of the Mahantango [2014-07-30 09:01:00]  recommend  recommend this post  (106 visits) info

 Devonian; US
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One of the more common rugose corals I found in the Edgecliff member of the Onondoga Formation (Devonian, Eifelian stage), in rocks exposed in a quarry south of Syracuse, are the specimens below that I think are Heterophrentis prolifica. They are relatively small and highly curved which indicates to me that they were near the wave base and could easily get knocked over. Considering that the Edgecliff member is considered a Biostrome (an area that surrounds a reef but is not the reef itself) [...]

Platystoma gastropod from the Onondoga formation 

Views of the Mahantango [2014-07-28 09:01:00]  recommend  recommend this post  (97 visits) info

 Devonian; GR,US
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I didn't find too many gastropod fossils in the quarry, south of Syracuse, NY that exposed the Onondoga formation, except for this specimen. It's been weathered quite a bit but still looks pretty good. It's a Platystoma sp. gastropod and was found in the Edgecliff member of the Onondoga formation (Devonian, Eifelian stage).The specimen above looks similar to some Platysoma sp. Gastropods that I have from the Haragan formation in Oklahoma (Devonian, Lockhovian stage).I looked through the paper [...]

Leptaena rhomboidalis and Levenea lenticularis brachiopods from the Onondoga formation 

Views of the Mahantango [2014-07-26 09:01:00]  recommend  recommend this post  (125 visits) info

 Devonian; US
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Two more brachiopods that I found in a quarry near Syracuse this past May are this Leptaena rhomboidalis.... ...and what I think is a Levenea lenticularisBoth specimens come from the Edgecliff member of the Onondoga Formation (Devonian, Eifelian stage) and were ID'ed using the paper "STRATIGRAPHY OF THE ONONDAGA LIMESTONE (DEVONIAN) IN CENTRAL NEW YORK By William A. Oliver, Jr (Bulletin of the Geological Society of America VOL. 66. PP. 621-662. JULY

Meristella arcuata & Kozlowskiella raricesta brachiopods from the Onondoga formation 

Views of the Mahantango [2014-07-24 09:01:00]  recommend  recommend this post  (65 visits) info

 Devonian; US
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I found these two types of brachiopod on the floor of a old quarry near Syracuse, NY. They come from the Edgecliff member of the Onondoga formation (Devonian, Eifelian stage). They are fairly weathered but based on the paper "STRATIGRAPHY OF THE ONONDAGA LIMESTONE (DEVONIAN) IN CENTRAL NEW YORK By William A. Oliver, Jr (Bulletin of the Geological Society of America VOL. 66. PP. 621-662. JULY 1954)." I have some tentative ID's.I think these are Meristella arcuata brachiopods Not enough detail [...]

Large Crinoid stems from the Onondoga Formation 

Views of the Mahantango [2014-07-22 09:01:00]  recommend  recommend this post  (115 visits) info

 Devonian; US
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This past May I visited an old quarry south of Syracuse, NY that exposed part of the Onondoga formation (middle Devonian, Eifelian stage). The floor of the quarry exposed part of a Biostrome (an area that surrounds a reef but is not the reef itself) that is contained within the Edgecliff member. One particular layer was chock full of large diameter, stoloniferous crinoid stems.Specimen #1 (reassembled)Specimen #2 (reassembled)In places the stems seemed to be the substrate upon which everything [...]

Ayudas económicas de la Paleontological Research Institution 

WeBlog Aragosaurus [2014-02-03 17:14:00]  recommend  recommend this post  (70 visits) info

 Devonian; US,PR,
La Paleontological Research Institution (PRI) nos ha mandado información de ayudas para investigar. Os la adjuntamos.John W. Wells Grants-in-Aid of Research ProgramThe Paleontological Research Institution (PRI) invites applications from graduate students and post-doctoral researchers for the John W. Wells Grants-in-Aid of Research Program to support collections-based research in any field of paleontology. The program awards grants of up to $500 to visit PRI’s collections.This grant honors [...]

Blothrophyllum coral from the Centerfield formation 

Views of the Mahantango [2013-09-07 09:01:00]  recommend  recommend this post  (118 visits) info
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Identifying Rugose, or horn, corals takes some effort and sometimes not all the details you need are present. Most of the horn corals that I find are generally either Heliophyllum or Cystiphylloides Occasionally I find some different genera like the two specimens below which are Blothrophyllum sp. from the Centerfield mbr. of the Ludlowville formation in central New York. The give away is the way the corallite structure grew. If you examine the side of the corallite they are not smooth like [...]

Unas pequeñas ayudas para investigar en Paleontología 

WeBlog Aragosaurus [2013-01-29 20:15:00]  recommend  recommend this post  (109 visits) info

 Devonian
The Paleontological Research Institution (PRI) invites applications fromgraduate students and post-doctoral researchers for the 2013 John W.Wells Grants-in-Aid of Research Program to support collections-basedresearch in any field of paleontology. The program awards grants of upto $500 to visit PRI's collections.This grant honors John W. Wells (1907-1994), past President of the PRIBoard of Trustees, a long-time geology faculty member at CornellUniversity, and one of the world's leading [...]

2012 Year in Review (some of my photos that never quite made it) 

Written In Stone...seen through my lens [2012-12-31 12:26:00]  recommend  recommend this post  (92 visits) info

 Quaternary,Cambrian,Jurassic
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Anyone and everyone that blogs knows the challenges. What shall I post about next? What should I say? Is the subject important? Will anyone read it? What photographs should I use? Do they convey the best image possible? There are many photographs that never get the Blogger "Publish" button. So, it is with this final post of the year that I contribute a few 2012 photos from here and there that never quite made it.JanuaryThis massive, foot-long clast of Westboro Formation quartzite is [...]

Chilotrypa ostiolata from Lockport, NY 

Views of the Mahantango [2011-12-14 09:01:00]  recommend  recommend this post  (669 visits) info

 Silurian
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One of the most common Bryozoans that I found at the Lockport, NY exposure of Irondequoit limestone is Chilotrypa ostiolata. The ID is based on specimens displayed at the Primitive Worlds website and the book "The Clinton of Western and Central New York" by Tracy Gillete (1947). Chilotrypa ostiolata is a thin, narrow branching bryozoan. Most pieces I find are loose and broken from the main colony.This first specimen reminds me of a leg bone from some animal.Note the structure of the individual [...]

Chasmatopora asperato-striata from Lockport, NY 

Views of the Mahantango [2011-12-06 09:01:00]  recommend  recommend this post  (83 visits) info

 Silurian
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Another Bryozoan that I've been able to identify from fossils I found near Lockport, NY in the Irondequoit limestone,  is Chasmatopora. This genera has a similar lacy fan structure to it like the more commonly recognized Fenestella but one of the differences is the shape of the gaps within the fan. In Chasmatopora the openings are rounded to ellipsoid while in Fenestella they are rectangular. This is not a trait which should be used to differentiate between genera in every instance however [...]
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