BillG Posted April 13, 2013 Share Posted April 13, 2013 Today I drove to Pipeline Road by way of Cabezon Road, by way of NM550 from I-25. I found this particular imprint almost common in the rocks near the Windmill site. The imprint appear as wavy depressions radiating somewhat like a fan. My guess is they are from some kind of large bivalve but I found no shells anyway near this large. I forgot to put a coin next to each but they measured in inches (not small) . I've attached three different examples. Link to comment Share on other sites More sharing options...
Regg Cato Posted April 13, 2013 Share Posted April 13, 2013 This is just a far out guess, the third picture looks like the top of a coral, but that's my amateur stab in the dark. Link to comment Share on other sites More sharing options...
2ynpigo Posted April 13, 2013 Share Posted April 13, 2013 Ammonite impressions. Link to comment Share on other sites More sharing options...
lordpiney Posted April 13, 2013 Share Posted April 13, 2013 I second Ammonite. Link to comment Share on other sites More sharing options...
BillG Posted April 13, 2013 Author Share Posted April 13, 2013 I went there hoping to get lucky and find an Ammonite but I failed to find even one! Thanks. Link to comment Share on other sites More sharing options...
BobWill Posted April 13, 2013 Share Posted April 13, 2013 I don't know the age of your site but for comparison look for a picture of Oxytropidoceras on google. Link to comment Share on other sites More sharing options...
Indy Posted April 13, 2013 Share Posted April 13, 2013 What is the time period of the rocks ?? Flash from the Past (Show Us Your Fossils)MAPS Fossil Show Link to comment Share on other sites More sharing options...
Auspex Posted April 13, 2013 Share Posted April 13, 2013 What is the time period of the rocks ?? Mancos Shale, Upper Cretaceous (95-80 MYBP) "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
PFOOLEY Posted June 27, 2013 Share Posted June 27, 2013 Mancos Shale, Upper Cretaceous (95-80 MYBP) Correct. Pictured in Bill's original post are Prionocyclus (novimexicanus or wyomingensis) impressions from the Juana Lopez Member of the Mancos Shale. These impressions, along with those of Scaphites, are common within this SS member. Bill, there are ammonites (as well as Ptychodus teeth) around so I would not give up. Best of luck. 1 "I am glad I shall never be young without wild country to be young in. Of what avail are forty freedoms without a blank spot on the map?" ~Aldo Leopold (1887-1948) New Mexico Museum of Natural History Bulletins Link to comment Share on other sites More sharing options...
Missourian Posted June 27, 2013 Share Posted June 27, 2013 (edited) Nice ammos. Is the windmill site one of those turbine fields? Last year, we flew over many turbines east of Albuquerque. I wonder how much rock is being exposed as they excavate for the towers and roads? Edited June 27, 2013 by Missourian Context is critical. Link to comment Share on other sites More sharing options...
cynodictis Posted June 27, 2013 Share Posted June 27, 2013 I was also thinking ammonite. Link to comment Share on other sites More sharing options...
PFOOLEY Posted June 28, 2013 Share Posted June 28, 2013 (edited) Is the windmill site one of those turbine fields? Last year, we flew over many turbines east of Albuquerque. I wonder how much rock is being exposed as they excavate for the towers and roads? "The Windmill Site" is a lowly homestead windmill perched on a hill. The field of turbines SW of ABQ is pretty impressive. Edited June 28, 2013 by PFOOLEY "I am glad I shall never be young without wild country to be young in. Of what avail are forty freedoms without a blank spot on the map?" ~Aldo Leopold (1887-1948) New Mexico Museum of Natural History Bulletins Link to comment Share on other sites More sharing options...
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