Edge Rewrite
// HTMLRewriter · presentation

This page was redesigned at the edge.

Cloudflare fetched the original article and streamed it through HTMLRewriter to apply an entirely new visual system without rebuilding the source page.

// request.cf · coarse context

A page that knows where it met you.

Only coarse request metadata is shown. This demo does not display or persist visitor IP addresses.

Country
US
Cloudflare location
CMH
Connection
HTTP/2
Language
Not provided

Ray ID: a2386b3e0e11f25b

Jump to content

// Workers AI · dad joke modeWhat did the Canyon Group say? We're in a deep relationship.

Canyon Group
Stratigraphic range: Carboniferous
Fossil from the Winchell Formation, Canyon Group
TypeGroup
Sub-unitsCaddo Creek, Graford, Palo Pinto, Wolf Mountain Shale & Winchell Formations
Location
Coordinates31°30′N 98°36′W / 31.5°N 98.6°W / 31.5; -98.6
Approximate paleocoordinates7°48′S 34°36′W / 7.8°S 34.6°W / -7.8; -34.6
RegionTexas
CountryUnited States
Canyon Group is located in Texas
Canyon Group
Canyon Group
Canyon Group
Canyon Group
Canyon Group (Texas)

The Canyon Group is a geologic group in Texas. It preserves fossils dating back to the Carboniferous period.[1] It contains the Caddo Creek, Graford, Palo Pinto, Wolf Mountain Shale and Winchell Formations.[2][3][4][5][6]

See also

[edit]

References

[edit]

Further reading

[edit]
  • F. B. Plummer and G. Scott. 1937. Upper Paleozoic ammonites in Texas. The University of Texas Bulletin 3701:1-516
  • J. K. Rigby, M. G. McKinzie, and B. B. Britt. 2008. Pennsylvanian sponges from the Graford Formation, Wise County, Texas. Journal of Paleontology 82(3):492-510