Allan Mountian upper member, Allan Mountain Limestone (Carboniferous of the United States)

Where: Montana (47.4° N, 105.6° W: paleocoordinates 11.0° S, 41.3° W)

• coordinate based on political unit

• basin-level geographic resolution

When: upper Member (Alan Mountain Limestone Formation), Kinderhookian (360.7 - 353.8 Ma)

• "upper Kinderhook? upper mbr. (lower part)" "lower bed"

• member-level stratigraphic resolution

Environment/lithology: marine; argillaceous, cherty/siliceous limestone

• "1-3 ft ls beds, some argillaceous partings, cherty. BA4"

Size class: macrofossils

Primary reference: M. R. Mudge, W. J. Sando, and J. T. Dutro, Jr. 1962. Mississippian Rocks of Sun River Canyon Area, Sawtooth Range, Montana. AAPG Bulletin 46(11):2003-2018 [M. Uhen/J. Ju/J. Ju]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 545: authorized by Jack Sepkoski, entered by Mike Sommers on 12.01.1999, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Mudge et al. 1962"
Trilobita
 Proetida -
? Proetida indet. Fortey and Owens 1975 trilobite
trilobite, indet. - originally entered as "? Proetida indet."
Ostracoda
  -
Ostracoda indet. Latreille 1802 ostracod
ostracodes
Strophomenata
 Productida - Productidae
 Productida -
Orbinaria sp. Muir-Wood and Cooper 1960
 Productida - Linoproductidae
 Productida - Chonetidae
Chonetes sp. Fischer de Waldheim 1830
 Orthotetida - Orthotetidae
 Strophomenida - Rafinesquinidae
Leptaena sp. Dalman 1828
Rhynchonellata
 Athyridida - Nucleospiridae
Nucleospira sp. Hall 1859
 Athyridida - Athyrididae
Cleiothyridina sp. Buckman 1906
Composita sp. Brown 1849
 Terebratulida - Dielasmatidae
? Dielasma sp. King 1856
originally entered as "? Dielasma sp."
 Spiriferinida - Punctospiriferidae
Punctospirifer sp. North 1920
 Spiriferinida - Dimegelasmidae
? Dimegelasma sp. Cooper 1942
originally entered as "? Dimegelasma sp."
 Spiriferinida - Syringothyrididae
 Spiriferida - Imbrexiidae
? Imbrexia sp.
originally entered as "? Imbrexia sp."
 Spiriferida - Spiriferidae
Spirifer sp. Sowerby 1818
3 species
 Spiriferida - Brachythyrididae
Brachythyris sp. M'Coy 1844
 Spiriferida - Elythidae
 Rhynchonellida - Stenoscismatidae
? Stenoscisma sp. Conrad 1839
originally entered as "? Stenocisma sp."
 Rhynchonellida - Camarotoechiidae
Camarotoechia sp. Hall and Clarke 1893
 Rhynchonellida - Rhynchonellidae
Rhynchonellidae indet. Gray 1848
rhynchonellid brachiopods - originally entered as "Rhynchonellida indet."
Lingulata
 Lingulida - Disciniidae
Orbiculoidea sp. d'Orbigny 1847
 Lingulida -
? Tomasina sp. Hall and Clarke 1892
originally entered as "? Thomasina sp."
 Lingulida - Lingulidae
Lingula sp. BruguiƩre 1797
Bivalvia
  -
Bivalvia indet. Linnaeus 1758 clam
bivalves
Gastropoda
 Euomphalina - Platyceratidae
Platyceras sp., "Rhinoderma sp." = Rhineoderma
Platyceras sp. Conrad 1840 snail
"Rhinoderma sp." = Rhineoderma de Koninck 1883 snail
originally entered as "Rhineoderma sp."
 Bellerophontida -
""Bellerophontoidea" indet." = Bellerophontoidea
""Bellerophontoidea" indet." = Bellerophontoidea M'Coy 1851 snail
originally entered as "? Bellerophon sp."
 Murchisoniina - Loxonematidae
? Loxonema sp. Phillips 1841 snail
originally entered as "? Loxonema sp."
Stenolaemata
 Fenestrida - Fenestellidae
Fenestella sp. Lonsdale 1839
 Cystoporida - Cystodictyonidae
Cystodictya sp. Ulrich 1882
 Cryptostomata -
Cryptostomata indet. Vine 1884
rhomboporoid bryozoan
 Cystoporata -
Gnathostomata
  -
Chondrichthyes indet. Huxley 1880 cartilaginous fish
cochliodont fish teeth
Chondrichthyes
 Psammodontiformes - Psammodontidae
Psammodus sp. Agassiz 1838 chimaera
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
crinoid columnals
Anthozoa
 Auloporida - Syringoporidae
Syringopora sp. Goldfuss 1826 tabulate coral
 Auloporida - Auloporidae
Aulopora sp. Goldfuss 1829 tabulate coral
 Favositida - Micheliniidae
Michelinia sp. de Koninck 1841 tabulate coral
 Stauriida - Antiphyllidae
Rotiphyllum sp. Hudson 1942 horn coral
 Stauriida - Hapsiphyllidae
Hapsiphyllum sp. Simpson 1900 horn coral
Zaphrentites sp. Hudson 1941 horn coral
Canadiphyllum sp. Sutherland 1954 horn coral
 Stauriida - Zaphrentoididae
Homalophyllites sp. Easton 1944 horn coral
 Stauriida - Cyathaxoniidae
Cyathaxonia sp. Michelin 1847 horn coral
 Stauriida - Aulophyllidae
Rylstonia sp. Hudson and Platt 1927 horn coral
 Stauriida - Uraliniidae
Liardiphyllum sp. Sutherland 1954 horn coral
Vesiculophyllum sp. Easton 1944 horn coral