Arizona Chris Posted October 3, 2017 Share Posted October 3, 2017 Are there any papers available or known that extend the time domain of Tentaculites past the Devonian into the Permian? ---------------------------------------------------------------------------------------------------------------------------- Arizona Chris Paleo Web Site: http://schursastrophotography.com/fossiladventures.html Link to comment Share on other sites More sharing options...
TqB Posted October 3, 2017 Share Posted October 3, 2017 I don't think so, I've never come across Carboniferous references and this paper, for example, just squeezes them up to the end of the Devonian: Famennian tentaculitids Tarquin Link to comment Share on other sites More sharing options...
Miocene_Mason Posted October 3, 2017 Share Posted October 3, 2017 http://www.bioone.org/doi/abs/10.1666/0022-3360(2000)074<0381:YROTHN>2.0.CO%3B2 found this online. “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Miocene_Mason Posted October 3, 2017 Share Posted October 3, 2017 Here is a version that allows preview of first page, can't find it unpaywalled. 1 “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
piranha Posted October 3, 2017 Share Posted October 3, 2017 10 minutes ago, WhodamanHD said: ...can't find it unpaywalled. Here you go: PDF LINK 2 Link to comment Share on other sites More sharing options...
Kane Posted October 3, 2017 Share Posted October 3, 2017 Thanks, Scott. ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Miocene_Mason Posted October 3, 2017 Share Posted October 3, 2017 2 minutes ago, piranha said: Here you go: PDF LINK Thanks! “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
FossilDAWG Posted October 3, 2017 Share Posted October 3, 2017 Thanks Scott. Don Link to comment Share on other sites More sharing options...
Arizona Chris Posted October 3, 2017 Author Share Posted October 3, 2017 That is encouraging! We have found several dozen of them in the Permian Fort Apache in the past month. The type we have found is constant ribs evenly spaced along their slightly curved tubes rather than a larger rib every so often like the illustrated genus. They are up to half an inch long, and very delicate. I do not believe them to be scaphopods of some weird type because of their small size and the tubes exterior of scaphopods are either smooth or ribbed along their length. Indeed, we have found two types of scaphopods as well, one with the linear ribbing and one smooth. They are huge in comparison, several inches long and up to 1/4" in diameter. The Fort Apache is Leonardian in age. Ill try to get some high resolution images this week. Leonardian is Lower Permian, which I think is Ok: ---------------------------------------------------------------------------------------------------------------------------- Arizona Chris Paleo Web Site: http://schursastrophotography.com/fossiladventures.html Link to comment Share on other sites More sharing options...
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