Eller, Eugene Rudy. (1945). Scolecodonts from the Trenton Series (Ordovician) of Ontario, Quebec, and New York. Annals of the Carnegie Museum. 30: 119-212, plates I-VII.
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Eller, Eugene Rudy
1945
Scolecodonts from the Trenton Series (Ordovician) of Ontario, Quebec, and New York
[None. From introduction:]
The Trenton rocks of North America have been studied for more than one hundred years, yet very little detailed and conclusive information is available in the literature. There seems to be little agreement among geologists in regard to Trenton stratigraphy. It would appear that several years of detailed field and laboratory work may be necessary to clear up the many disagreements. Since everything seems not to be right with Trenton stratigraphy, the writer will only attempt to describe the scolecodont fauna. The scolecodonts, fossil polychaete annelid jaws, are very plentiful in Trenton rocks, often outnumbering other fossil specimens. In this paper 122 species are considered, of which 115 are described as new. The Rockland formation contains by far the greater number of species. It is probable that many of the 72 species limited to the Rockland will be found in formations of the Black River group when they are studied. This may be especially true in the Ottawa valley where there seems to be almost continuous deposition. A number of species occurring in the Rockland and Cobourg were found in the Collingwood and Gloucester formations.