Locality 7. North wall of Sweetwater Creek Caynon near junction of Turret Creek (Devonian of the United States)

Also known as Broken Rib Member, Dyer Fm., Locality 7, Garfield Co., CO

Where: Garfield County, Colorado (39.8° N, 107.2° W)

• Paleocoordinates: 19.5° S, 61.1° W (Wright 2013)

• coordinate based on political unit

• local area-level geographic resolution

When: Lower Palmatolepis gracilis expansa conodont zone, Broken Rib Member (Dyer Formation), Late/Upper Famennian (365.2 - 358.9 Ma)

• This publication lists the Dyer as member of the Chaffee Formation. The Dyer is now a formation of the Chaffee Group. The limestone beds in which this fauna was collected have since been named the Broken Rib Member. Refer to Webster et al., 1999.

• member-level stratigraphic resolution

Environment/lithology: offshore shelf; gray, cherty/siliceous carbonate and dolomite

Size class: macrofossils

Collection methods: Collected by Bass, Northrup, and G. M. Richmond in 1951.

Primary reference: N. W. Bass and S. A. Northrop. 1963. Geology of Glenwood Springs Quadrangle and Vicinity Northwestern Colorado. U. S. Geological Survey Bulletin 1142-J:J1-J74 [A. Miller/A. Webber/J. Alroy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 3664: authorized by Arnold Miller, entered by Andrew Webber on 06.08.1999

Creative Commons license: CC0 (CC0)

Taxonomic list

• See Webster et al., 1999, for a detailed list of echinoderms from this member.
Gnathostomata
  -
Osteichthyes indet. Huxley 1880 bony fish
originally entered as "fish tooth fragments"
unclassified
  -
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Rhynchonellata
 Orthida - Schizophoriidae
"Schizophoria cf. australis" = Schizophoria (Schizophoria) australis
"Schizophoria cf. australis" = Schizophoria (Schizophoria) australis Kindle 1909
originally entered as "Schizophoria cf. australis"
 Rhynchonellida - Petasmariidae
Pugnoides sp. Weller 1910 brachiopod
 Rhynchonellida - Leiorhynchidae
Paurorhyncha endlichi rhynchonellid brachiopod
 Rhynchonellida - Trigonirhynchiidae
"Camarotoechia sobrina" = Ptychomalotoechia sobrina
"Camarotoechia sobrina" = Ptychomalotoechia sobrina Stainbrook 1947 rhynchonellid brachiopod
 Athyridida - Rhynchospirinidae
? Rhynchospirina sp. Schuchert and LeVene 1929
originally entered as "Rhynchospirina? sp."
 Athyridida - Athyrididae
? Composita sp. Brown 1849
originally entered as "Composita? sp."
 Spiriferida - Strophopleuridae
 Spiriferida - Cyrtospiriferidae
Cyrtiopsis aff. animasensis
originally entered as "Cyrtiopsis aff. animasensis"
Strophomenata
 Productida - Productellidae
Planoproductus cf. hillsboroensis Kindle 1909
originally entered as "Planoproductus cf. hillsboroensis"
 Productida - Productidae
 Productida - Sentosiidae
"? Echinoconchus laminatus" = Laminatia laminata
"? Echinoconchus laminatus" = Laminatia laminata Kindle 1909
originally entered as "Echinoconchus? laminatus"
 Orthotetida - Schuchertellidae
Schuchertella sp. Girty 1904
Rostroconchia
 Conocardiida - Conocardiidae
Conocardium sp. Bronn 1835
Cephalopoda
 Nautiloidea -
Nautiloidea indet. Agassiz 1847 nautiloid
  - Orthoceratoidea
? Spyroceras sp. Hyatt 1884
originally entered as "Spyroceras? sp."
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
"indet. high-spired" - originally entered as "Gastropoda indet. high-spired"
 Euomphalina - Palaeotrochidae
"Platyceras (Platyostoma) cf. gigantea" = Floyda concentrica
"Platyceras (Platyostoma) cf. gigantea" = Floyda concentrica Webster 1905 snail
originally entered as "Platyceras cf. gigantea"
 Euomphalina - Euomphalidae
Straparollus sp. de Montfort 1810 snail
Anthozoa
 Stauriida - Acrophyllidae
Acrophyllidae indet. Stumm 1949 horn coral
originally entered as "Acrophyllid coral"