Talk:Redwall Limestone

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Millions of nautiloid fossils in Redwall's basal layer edit

Latest comment: 5 years ago2 comments2 people in discussion

This is such a brief article for such an incredible geological feature. (I've gone to the Canyon a dozen times, researching, rafting, camping, and the Redwall is stunning.) Seems like it deserves so much more. For example, it's been reported that there are millions of nautiloid fossils in the bottom eight feet or so of the Redwall, approximately one every three square meters, spanning the Canyon's 200+ mile length. The largest nautiloid fossils are more than 20 inches long. I have found reports on these, but not in typical WP sources. Perhaps someone can provide a peer-reviewed reference for these, and a fossils section could be added to the article. Bob Enyart, Denver KGOV radio host (talk) 22:43, 8 May 2018 (UTC)Reply

I share your frustration. Although a spectacular North American example of the numerous cephalopod beds and cephalopod limestones that have been described in detail in peer-reviewed publications from the Alps, Morocco, and elsewhere in the world, I have yet to find a properly peer-reviewed and published analysis of these nautiloid fossils. Unfortunately, because none of the publications that I found so far specifically mention the nautiloid bed in the Redwall Limestone, they cannot be used to specifically explain it in this article. However, I have already collected enough material about the Redwall Limestone to update this article and add a section on fossils.

Good discussions of similar cephalopod beds / nautiloid beds are:

Holland, C.H., Gnoli, M. and Histon, K., 1994. Concentrations of Palaeozoic nautiloid cephalopods. Bollettino della Società Paleontologica Italiana, 33(1), pp. 83-99.

and Klug, C. and Pohle, A., 2018. The eastern Amessoui Syncline–a hotspot for Silurian to Carboniferous cephalopod research. Münster. Forsch. Geol. Paläont. 110, pp. 244-260.

I will take another look. Maybe I can find a specific discussion of the nautiloid bed in the Redwall Limestone. Paul H. (talk) 14:29, 9 May 2018 (UTC)Reply

Merger proposal edit

Latest comment: 5 years ago1 comment1 person in discussion

I propose that Redwall Formation be merged into Redwall Limestone. These are two pages on exactly the same subject, with the same scope. I propose that the final article be Redwall Limestone as, it is the nomenclature that is officially recognized by the United States Geological Survey according to Redwall Limestone. and Geologic Unit: Redwall. Paul H. (talk) 16:53, 7 June 2018 (UTC)Reply

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