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  1. The past two weeks I've been able to go out collecting a couple of times- two different locations, both Lower Devonian. Where I live the bedrock is all metamorphic. Nice scenery, wooded hills, lakes and wetlands, but metamorphic rock, so I have to drive over an hour to get to the nearest sedimentary exposures that are fossil bearing. My favorite locality that's within an hour and a half is Glenerie, which is located between Kingston and Saugerties just west of the Hudson River. It represents the type locality for the Glenerie Limestone. New York's Lower Devonian is divided into two groups: the Helderberg and the Tristates. The Tristates is the younger of the two and that's where the Glenerie Limestone is placed. I first visited the Glenerie site when I was a teenager. When I resumed fossil collecting 12 years ago, it was one of the first sites I revisited and quickly became a favorite (I lived much closer to it then.) For a while, I was there almost every week and this site was the first one I built up a collection from. As I became acquainted with other fossil sites, I visited Glenerie less often, but in recent years, inspired in part by my fossil hunting comrades, I've been going more. The Glenerie site is very rich in brachiopods which probably make up over 95% of the marine fauna. The vast majority of those are single valve. which display amazing detail in ornamentation, muscle scars, etc. Gastropods, tentaculites, bryozoans, and trilobites make up most of the rest of the fauna. Corals have been found by some of my friends on very rare occasions. I have found a single small nautiloid there as well as a partial crinoid calyx. I saw another this time, but unfortunately, was unable to extract it. The fossils are usually preserved in silica which resists the weathering that dssolves the limestone. Some of the limestone is densely packed with fossil shells. However, the rock is so hard that extracting the fossils which are actually softer than the matrix, is impossible. There are areas of the outcrop, near the top and in crevices where shells weather out complete and can often be obtained intact surface collecting. It was a good day for finding gastropods. I was able to collect a half dozen, including this one, a Platystoma ventricosa- actually two shells side by side, two and a quarter inch across.
  2. Tidgy's Dad

    Adam's Early / Lower Devonian

    The Devonian period is known as "The Age of Fish", but could also be known as "The Age of Brachiopods." In the Early / Lower Devonian, brachiopods reached the height of their diversity towards its end in the Emsian. We see the ancestral groups occurring, lingulids, craniids, orthids, protorthids, pentamerids, rhynchonellids and strophomenids, as well as the later successful groups we have seen before such as atrypids, athyrids and orthotetids, plus the rise of spiriferids, spiriferinids and productids and the beginning of the terebratulids. By the end of the Devonian , several of these groups are extinct or severely reduced in importance and brachiopods never quite recover. Also, the Devonian is the last time we see trilobites with such variation, large sizes and numbers and orthocerids too are much more uncommon after the rise of the goniatites. The massive tabulate coral reefs also disappear after the Devonian. Fascinating period and I hope to share some of its wonders with you. Equally, a lot of this is rather new to me, so I would be very grateful for any assistance, corrections or further information on my specimens. Thank you. The Early Devonian epoch is split into three stages, so let's start with the first of those, the Lochkovian, that began about 419 mya and finished roughly 411 mya. I have been sent a nice selection of brachiopods from the Kalkberg Formation, Helderberg Group by the Mighty @Misha, mostly. But the kind gentleperson also sent me this fascinating little bryozoan hash : It is dominated by fenestellids, which is usually the case in the Devonian, but other orders sill occur. These ones, I think, are Fenestella, but there are so many species in the formation that I wont take a guess as to species : Not sure what this one is ;
  3. Tidgy's Dad


    I would be very grateful for any help regarding ids of these tiny oddments found in a matrix piece from the Early Devonian Helderberg Group, Kalkberg Formation of the Rickard Hill Road cut, Schoharie, New York state. The piece contains four really nice brachiopods, the horn coral Enterolasma strictum and a lot of tiny crinoid ossicles. Perhaps, in strict alphabetical order, @Darktooth @Fossildude19 @Jeffrey P@Misha or @Nautiloid might be able to throw some light on them? Thank you. This first one seems to be encrusting along the growth lines of large, flat specimen of Discomyorths oblata. Could it be a cornulitid of some sort? About 2.5mm long. This first picture seems to show it as pointy, but if you look, the wider end is actually sort of horseshoe shaped ans seems to have an opening infilled with sediment. It seems to show growth lines. The second specimen I thoght might be a tentaculitid, but now I'm leaning towards a gastropod? Note the very fine striations. About 3mm. What about these, please? Some are clearly stemmed echinoderm ossicles, but is that a tiny lingulid. Are there ostracods? These are all only a millimetre or two across. These last two may be burrows? A white one: And a darker one: Finally, tis nice to know they had McDonalds in New York back in the Early Devonian. Thanks to everyone for looking and for any assistance.
  4. From the album: Lower Devonian

    Machaeraria formosa (Pentamerid brachiopods, both valves) Lower Devonian Kalkberg Formation Helderberg Group Leesville, NY.
  5. From the album: Lower Devonian

    Costistrophonella sp. (Strophomenid brachiopods) Lower Devonian Kalkberg Formation Helderberg Group Interstate 88 road cut Schoharie, N.Y.
  6. Tidgy's Dad

    Catskills Query.

    Hello, friends. This specimen comes from the Catskills, New York and is from the Helderberg Group, Lochkovian or Lowermost Early Devonian in age. It could be from Becraft Mountain. It's not a rhynchonellid, it's too flat and there's no notable fold or sulcus. It develops second second order costellae half way toward the anterior margin : I have a couple of not very convincing thoughts but would be very interested in your opinions. Thank You.
  7. Hello everyone, I've been working on extracting this piece of coral from the Rock Cut Quarry, located in Syracuse, New York. The part of the quarry wall this piece came out of is part of the Helderberg Group, sitting below the Onondaga Formation. I was looking forward to see if anyone had some input on identifying the species of coral. I believe its Favosites sphaericus. Cross-section: Top close-ups:
  8. Nautiloid

    Scutellum pompilius pygidium

    From the album: Nautiloid’s Trilobite Collection

    Kosovopeltis pompilius Lower Devonian Helderberg Group Kalkberg Formation Schoharie, NY

    © Owen Yonkin 2021

  9. From the album: Lower Devonian

    Eatonia medialis Rhynchonellid Brachiopods (matrix 5 inches across) Lower Devonian Kalkberg Formation Helderberg Group Schoharie, N.Y.
  10. Jeffrey P

    Platycerid Gastropods

    From the album: Lower Devonian

    Platycerid Gastropods (3/4 inch wide) Lower Devonian Kalkberg Formation Helderberg Group Schoharie, N.Y.
  11. Jeffrey P

    Macropleura (Spiriferid) Brachiopod

    From the album: Lower Devonian

    Macropleura macropleura Spiriferid Brachiopod (3 inches wide) Lower Devonian Kalkberg Formation Helderberg Group Schoharie, N.Y.
  12. Jeffrey P

    Cryptonella (Terebratulid) Brachiopod

    From the album: Lower Devonian

    Cryptonella exima Terebratulid Brachiopod (less then 3/4 inch tall) Lower Devonian Kalkberg Formation Helderberg Group Schoharie, N.Y.
  13. From the album: Lower Devonian

    Megakozlowskiella perlamellosa Spiriferid Brachiopod (1 1/2 inches wide) Lower Devonian Kalkberg Formation Helderberg Group Schoharie, N.Y.
  14. Jeffrey P

    Partial Pachiphacops (molt)

    From the album: Lower Devonian

    Paciphacops logani Phacopid Trilobite (molt) Thorax and pygidium (almost 1 1/4 inch tall) Lower Devonian Kalkberg Formation Helderberg Group Schoharie, N.Y.
  15. From the album: Lower Devonian Helderberg Group in Eastern NY

    Dalmanitid pygidium, possibly Odontochile micrurus Lower Devonian Helderberg Group Coeymans Formation

    © Owen Yonkin 2021

  16. From the album: Lower Devonian

    Meristella sp. (Spiriferid brachiopods) Lower Devonian Kalkberg Formation Helderberg Group Interstate 88 road cut Schoharie, N.Y.
  17. From the album: Lower Devonian Helderberg Group in Eastern NY

    Tentaculites gyracanthus Upper Silurian/Lower Devonian Helderberg Gr. Manlius Fm. Albany Co. NY Collected 6/27/19
  18. From the album: Lower Devonian Helderberg Group in Eastern NY

    Rocks containing mainly Tentaculites gyracanthus Upper Silurian/Lower Devonian Helderberg Gr. Manlius Fm. Albany Co. NY Collected 6/27/19
  19. I know this trip happened a while ago, but I’ve been pretty busy as of late finishing up the school year and such and haven’t had a chance to make a trip report. Hopefully y’all find this interesting.
  20. Gastropods: Diaphorostoma depressum Platyceras spirale? Tremanotus profundus (very flattened specimen).
  21. I found this fossil last weekend at the road cut along Rickard Hill Road in Schoharie, New York. It is from the Lower Devonian Kalkberg formation. The surface has no texture at all. The fossil has a thickness of about 1mm. Originally I thought it was less than 2 inches long and wide but I was able to prep out the rest of the fossil due to the softness of the matrix. It is about 3 inches wide and long.
  22. Sunday was the warmest and most pleasant day so far this spring. I decided on a solo venture up north to Schoharie County, N.Y. My destination was two road cut sites which expose the Lower Devonian Kalkberg Formation, part of the Helderberg group. The primary attractions here are the abundance and diversity of fossils, and very good preservation. The first road cut site is immense and I spent about three hours surface collecting. Most of my finds were brachiopods, some very nice specimens of Leptanena rhomboidalis, Discomyorthis oblata, Meristella, sp., Costistroponella sp., and a variety of Rhynchonellids. Also found a gastropods internal mold, an Enterolasma strictum, a rogose coral, and a 8 by 7 inch Favosites helderbergiae, a tabulate coral colony.
  23. From the album: Lower Devonian Helderberg Group in Eastern NY

    Howellella cycloptera Lower Devonian Helderberg Gr. Kalkberg Fm. Rickard Hill Road Schoharie, NY Collected 5/31/20
  24. Nautiloid

    Gastropod from the Kalkberg formation

    From the album: Lower Devonian Helderberg Group in Eastern NY

    Diaphorostoma depressum Lower Devonian Helderberg Gr. Kalkberg Fm. Rickard Hill Road Schoharie, NY Collected 5/31/20
  25. Nautiloid

    Partial trilobite pygidium

    From the album: Lower Devonian Helderberg Group in Eastern NY

    Dalmanites pleuroptyx? Lower Devonian Helderberg Gr. Kalkberg Fm. Rickard Hill Road Schoharie, NY Collected 5/31/20
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