World Polychaeta Database (WPolyDb). Publication date: "Issued March 23, 1934"
[From introduction:]
The fossil annelid jaws described in this manuscript were collected at Alfred Station and at a gorge two miles to the south, near Tiptop, Allegany County, New York, and are from the Chemung or Canadaway formation of the Upper Devonian. They were found in fine-grained micaceous sandstone and shale. Flat black tubes of substance similar to that of the chitinous-like jaws are also plentiful. These serpulite tubes are about 50 mm. in length and 5 mm. in width. Foerste (1888) suggested that they may represent the chitinous skin of the annelids, the jaws of which are found nearby. This does not seem to be the case in the material under consideration because the jaw apparatus is too large for the size of the tubes. Among the chitinous-like fragments, which are so abundant on the surface of the rock, are plates which are tentatively referred to as elytra or horny scales of the somites. It is hoped that further search may bring to light many more of these interesting fossils.