USGS "blue file" Loc. 13414 (Carboniferous of the United States)

Where: Golden Valley County, Montana (46.7° N, 109.1° W: paleocoordinates 3.9° N, 36.8° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Heath Formation, Serpukhovian (330.9 - 323.2 Ma)

• Lower Heath. JA: late Chesterian is Serpukhovian according to Mii et al. 1999 (GSA Bull 111:960-973)

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified, black, gray, calcareous limestone and siltstone

• Some of the upper Heath MAY be estuarine/non-marine as noted by the author. These localities contain wood and other plant fragments, are non-calcareous and contain no marine fossils. These localities have been omitted by me [MS].
• limestone, dark gray to black, dense to finely crystalline, well bedded, locally laminated; 2ft layer 3ft above base is siltstone, gray, calcareous, poorly exposed, shaly.

Reposited in the USGS

Collection methods: surface (in situ),

Primary reference: W. H. Easton. 1962. Carboniferous formations and faunas of central Montana. United States Geological Survey Professional Paper 348:1-126 [J. Alroy/M. Sommers]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 5641: authorized by John Alroy, entered by Mike Sommers on 09.11.1999, edited by Pete Wagner, Austin Hendy and Pedro Monarrez

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Trilobita
 Proetida - Proetidae
? Ameura sp. Weller 1936 trilobite
Strophomenata
 Productida - Productidae
Dictyoclostus inflatus
ssp. spinolinearis n. ssp.
Dictyoclostus inflatus
ssp. obsoletus n. ssp.
"Productus fasciculatus" = Productus (Diaphragmus) fasciculatus McChesney 1860
Antiquatonia pernodosa n. sp. Easton 1962
 Productida - Linoproductidae
 Productida - Rugosochonetidae
Nix angulata n. gen. n. sp.
Nix angulata n. gen. n. sp. Easton 1962
 Orthotetida - Schuchertellidae
Schuchertella sp. Girty 1904
Rhynchonellata
 Athyridida - Athyrididae
 Terebratulida - Cranaenidae
 Spiriferinida - Reticulariinidae
Reticulariina spinosa Norwood and Pratten 1855
 Spiriferinida - Punctospiriferidae
 Spiriferida - Spiriferidae
 Spiriferida - Ambocoeliidae
Crurithyris sp. n. sp. George 1931
 Rhynchonellida - Leiorhynchidae
 Rhynchonellida - Stenoscismatidae
"Stenocisma obesa" = Stenoscisma
"Stenocisma obesa" = Stenoscisma
Rostroconchia
 Conocardiida - Bransoniidae
"Conocardium cf. latifasciatum" = Apotocardium latifasciatum
"Conocardium cf. latifasciatum" = Apotocardium latifasciatum Branson 1942
 Conocardiida - Conocardiidae
"Conocardium glabratum n. sp." = Arceodomus glabrata
"Conocardium glabratum n. sp." = Arceodomus glabrata Easton 1962
Bivalvia
  -
Bivalvia indet.2 Linnaeus 1758 clam
sgn. (Palaeonucula)
 Pectinida - Aviculopectinidae
? Aviculopecten sp. M'Coy 1851 scallop
 Carditida - Crassatellidae
Cypricardella sp. Hall 1856 clam
sp. A
 Cardiidia - Sanguinolitidae
"Allorisma inflata n. sp." = Wilkingia inflata, Sphenotus cf. altidorsatus
"Allorisma inflata n. sp." = Wilkingia inflata Easton 1962 clam
Sphenotus cf. altidorsatus Easton 1962 clam
 Protobranchia - Nuculanidae
"Nuculana rugodorsata n. sp." = Phestia rugodorsata
"Nuculana rugodorsata n. sp." = Phestia rugodorsata Easton 1962 pointed nut clam
Gastropoda
 Bellerophontida -
""Bellerophontoidea" indet." = Bellerophontoidea3
""Bellerophontoidea" indet." = Bellerophontoidea3 M'Coy 1851 snail
 Murchisoniina - Gosseletinidae
? Angyomphalus excavatus n. sp. Easton 1962 snail
? Glabrocingulum sp. Thomas 1940 snail
 Murchisoniina - Soleniscidae
Bulimorpha elegans Girty 1927 snail
Soleniscus sp. Meek and Worthen 1860 snail
Cephalopoda
 Pseudorthocerida - Pseudorthoceratidae
? Mooreoceras sp. Miller et al. 1933
Chondrichthyes
 Ctenacanthiformes - Ctenacanthidae
cf. Ctenacanthus indet. Agassiz 1837 elasmobranch
aka ichthyodorulites
Cladodus sp. Agassiz 1843 elasmobranch
shark tooth
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
Anthozoa
 Stauriida - Antiphyllidae
Bradyphyllum clavigerum n. sp. horn coral
 Stauriida - Cyathopsidae
Caninia montanensis n. sp. Easton 1962 horn coral