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Devonian of New York: Fossil Collecting Site Main Page


Printable Fossil Identification Sheet for the Devonian of Western NY



Similar Devonian Fossil Collecting Location:
Sylvania, Ohio.



Eldredgeops (Phacops) Facts and Information
Everything you wanted to know about these trilobites!



The Eurypterid Gallery:
Learn about New York's most famous Silurian Fossils!



The Trilobite Gallery
See and Learn about Different Trilobites


Trilobite

Trilobite Fossil Examples from the Ludlowville and Moscow Formations in Western New York

~385 Million Years Old
Middle Devonian, Givetian
Hamilton Group, Ludlowville and Moscow Formations

Trilobite Fossils include:
Greenops , Eldredgeops (Phacops)

Trilobites

Greenops boothi (Green)
This 2nd most common trilobite from the area. Because of their fine structure, they tend to be much more fragile than Phacops rana
This is a posative and negative of two Greenops boothi touching each other.

Formation:
  • Hamilton Group: Wanakah Member (Ludlowville Formation) or Windom Member (Moscow Formation)
    Age:
  • Middle Devonian, ~387 - 378 m.y.
    Location:
  • Hamburg, Erie Co., NY
    Size:
  • Another Greenops, with its far left side partially missing.

    Formation:
  • Hamilton Group: Wanakah Member (Ludlowville Formation) or Windom Member (Moscow Formation)
    Age:
  • Middle Devonian, ~387 - 378 m.y.
    Location:
  • Hamburg, Erie Co., NY
    Size:
  • A posative and negative Greenops in poor shape. Most of the black shell on the trilobite didn't survive, hence it is now mostly an internal cast of one.

    Formation:
  • Hamilton Group: Wanakah Member (Ludlowville Formation) or Windom Member (Moscow Formation)
    Age:
  • Middle Devonian, ~387 - 378 m.y.
    Location:
  • Hamburg, Erie Co., NY
    Size: ~ 1.25" (31mm)
  • Eldredgeops milleri (Phacops rana) (Green)
    These are by far the most common trilobite fossils in the Devonian of Western New York. Pieces of them can be found all over the place, however finding a complete, prone (unenrolled) onesis another story.
    Most fossil trilobites found here are enrolled. These are typical examples of enrolled Phacops trilobites.
    Formation:
  • Hamilton Group: Wanakah Member (Ludlowville Formation)
    Age:
  • Middle Devonian, ~387 - 378 m.y.
    Location:
  • 18 Mile Creek, Erie Co., NY
    Size:

  • Date:
  • May 2003
  • Here is a prone Phacops. "Prone" simply means unenrolled.
    Formation:
  • Hamilton Group: Wanakah Member (Ludlowville Formation)
    Age:
  • Middle Devonian, ~387 - 378 m.y.
    Location:
  • 18 Mile Creek, Erie Co., NY
    Size:

  • Date:
  • May 2003
  • Here is another prone trilobite.
    Formation:
  • Hamilton Group: Wanakah Member (Ludlowville Formation)
    Age:
  • Middle Devonian, ~387 - 378 m.y.
    Location:
  • 18 Mile Creek, Erie Co., NY
    Size:

  • Date:
  • May 2003
  • This guy is nearly perfect except for the tip of its nose. It is also very 3-D, standing a good 1/4" out of the rock.
    Formation:
  • Hamilton Group: Windom Member (Moscow Formation)
    Age:
  • Middle Devonian, ~387 - 378 m.y.
    Location:
  • 18 Mile Creek, Erie Co., NY
    Size:
  • "Road Kill Sam" is kind of smooshed. I beleive it was run over by a car.
    Formation:
  • Hamilton Group: Wanakah Member (Ludlowville Formation) or Windom Member (Moscow Formation)
    Age:

  • Middle Devonian, ~387 - 378 m.y.
    Location:
  • 18 Mile Creek, Erie Co., NY
    Size:
  • This is another nearly perfect phacops, looking very life like and 3-D.
    Formation:
  • Hamilton Group: Wanakah Member (Ludlowville Formation) or Windom Member (Moscow Formation)
    Age:

  • Middle Devonian, ~387 - 378 m.y.
    Location:
  • 18 Mile Creek, Erie Co., NY
    Size:
  • This is a flawless enrolled Eldredgeops (Phacops) that I took 95% out of the matrix, with a pyritized shell 1/2" away
    Most trylobytes are found here enrolled usually with the Cephalon (head) missing.
    Formation:
  • Hamilton Group: Windom Member (Moscow Formation)
    Age:
  • Middle Devonian, ~387 - 378 m.y.
    Location:
  • 18 Mile Creek, Erie Co., NY
    Size:
  • Here is a plate with two enrolled Eldredgeops. Click on the pic for a close up of the two phacops.
    Formation:
  • Hamilton Group: Wanakah Member (Ludlowville Formation)
    Age:
  • Middle Devonian, ~387 - 378 m.y.
    Location:
  • 18 Mile Creek, Erie Co., NY
    Size:

  • Date:
  • May 2003
  • Here is a plate with 3 Eldredgeops on it, although the center one is missing a head, and the lower left enrolled one is a little smooshed.
    Formation:
  • Hamilton Group: Wanakah Member (Ludlowville Formation)
    Age:
  • Middle Devonian, ~387 - 378 m.y.
    Location:
  • 18 Mile Creek, Erie Co., NY
    Size:

  • Date:
  • May 2003
  • Heres an enrolled one with the tail tucked way under, and a mangled phacops that didn't survive the trip home.
    Formation:
  • Hamilton Group: Wanakah Member (Ludlowville Formation)
    Age:
  • Middle Devonian, ~387 - 378 m.y.
    Location:
  • 18 Mile Creek, Erie Co., NY
    Size:

  • Date:
  • May 2003
  • Here are two enrolled ones. Very different sizes!
    Formation:
  • Hamilton Group: Wanakah Member (Ludlowville Formation)
    Age:
  • Middle Devonian, ~387 - 378 m.y.
    Location:
  • 18 Mile Creek, Erie Co., NY
    Size:

  • Date:
  • May 2003
  • These are two more enrolled ones. They are both complete, however their heads are on the other side.
    Formation:
  • Hamilton Group: Wanakah Member (Ludlowville Formation)
    Age:
  • Middle Devonian, ~387 - 378 m.y.
    Location:
  • 18 Mile Creek, Erie Co., NY
    Size:

  • Date:
  • May 2003
  • This little trilobite is playing "peek a boo"
    Formation:
  • Hamilton Group: Wanakah Member (Ludlowville Formation)
    Age:
  • Middle Devonian, ~387 - 378 m.y.
    Location:
  • 18 Mile Creek, Erie Co., NY
    Size:

  • Date:
  • May 2003
  • These are in the Tichenor Limestone, and were very difficult to extract. For all the work I did, I wish at least one was complete, however they are both missing their trilo-butts, or pygidium.
    Formation:
  • Hamilton Group:Tichenor Limestone of the Moscow Formation
    Age:

  • Middle Devonian, ~387 - 378 m.y.
    Location:
  • Hamburg, Erie Co., NY
    Size: