Unit 11, Upper Coal Measures, Thayer Shales, Kansas City (Carboniferous of the United States)

Also known as Broadhead (1872) unit 97, Bennett (1896) unit 4

Where: Jackson County, Missouri (39.2° N, 94.5° W: paleocoordinates 3.2° S, 27.6° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Thayer Shale Member (Pottawatomie Formation), Missourian (306.0 - 303.7 Ma)

• Upper Coal Measures, older than Iola and Garnett, which are Missourian, so treating in same age

• formation-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; green, blue shale

• "25 feet blue and olive-colored shales"

Size classes: macrofossils, mesofossils

Collected by Rogers

Primary reference: J. W. Beede and A. Rogers. 1900. Coal Measures faunal studies. I. Kansas University Quarterly 9(4):233-254more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 26878: authorized by Michael Foote, entered by Michael Foote on 06.11.2002, edited by Phil Novack-Gottshall

Creative Commons license: CC BY (attribution)

Taxonomic list

Crinoidea
 Millericrinida - Millericrinidae
 Dendrocrinida - Erisocrinidae
 Cladida - Eupachycrinidae
  -
Stenolaemata
 Cystoporata - Fistuliporidae
 Rhabdomesida - Rhomboporidae
 Trepostomida - Stenoporidae
Lingulata
 Lingulida - Discinidae
Strophomenata
 Productida - Productellidae
Bivalvia
 Pectinida - Aviculopectinidae
 Pectinida - Limidae
Lima retifera file clam
 Myalinida - Monopteriidae
 Trigoniida - Schizodidae
 Pectinida - Streblochondriidae
 Nuculanida - Yoldiidae
Cephalopoda
 Nautilida - Tainoceratidae
Crinoidea
 Dendrocrinida - Erisocrinidae
Erisocrinus typus Meek and Worthen 1865 Sea lily
Lingulata
 Lingulida - Lingulidae
"Lingula umbonata" = Lingula carbonaria
"Lingula umbonata" = Lingula carbonaria Shumard and Swallow 1858
Strophomenata
 Productida - Echinoconchidae
"Productus pertenuis" = Pustula pertenuis, "Productus nebraskensis" = Parajuresania nebrascensis
"Productus pertenuis" = Pustula pertenuis Meek 1872
"Productus nebraskensis" = Parajuresania nebrascensis Owen 1852
 Orthotetida - Derbyiidae
"Derbya crassa" = Derbyia crassa
"Derbya crassa" = Derbyia crassa Meek and Hayden 1858
Rhynchonellata
 Athyridida - Athyrididae
"Seminula argentea" = Composita argentea
"Seminula argentea" = Composita argentea Shepard 1838
Stenolaemata
 Cryptostomata - Acanthocladiidae
 Cryptostomata - Septoporidae
Septopora biserialis Swallow 1858
Bivalvia
 Nuculanida - Polidevciidae
"Nuculana bellistriata" = Polidevcia bellistriata
"Nuculana bellistriata" = Polidevcia bellistriata Stevens 1858 clam
 Trigoniida - Schizodidae
Schizodus cf. affinis Herrick 1887 clam
 Pholadomyida - Edmondiidae
"Edmondia nebraskensis" = Edmondia nebrascensis
"Edmondia nebraskensis" = Edmondia nebrascensis Geinitz 1866 clam
 Mytilida - Mytilidae
"Myalina swallovi" = Promytilus swallovi, "Modiola subelliptica" = Volsellina subelliptica
"Myalina swallovi" = Promytilus swallovi McChesney 1860 mussel
"Modiola subelliptica" = Volsellina subelliptica Meek 1867 mussel
 Ostreida - Bakevelliidae
"Avicula longa" = Gervillia longa
"Avicula longa" = Gervillia longa Geinitz 1867 oyster
 Pectinida - Aviculopectinidae
Aviculopecten occidentalis Shumard 1855 scallop
 Myalinida - Myalinidae
Myalina sp. de Koninck 1842 clam
Cephalopoda
 Nautilida - Nautilidae
Nautilus sp. Linnaeus 1758
 Orthocerida - Orthoceratidae
Orthoceras sp. Breynius 1832
Scaphopoda
 Dentaliida - Dentaliidae
"Dentalium meekianum" = Minodentalium meekianum
"Dentalium meekianum" = Minodentalium meekianum Geinitz 1866 tusk shell
Gastropoda
 Bellerophontida - Euphemitidae
"Bellerophon carbonarius" = Euphemites carbonarius
"Bellerophon carbonarius" = Euphemites carbonarius Cox 1857 snail
Includes two B. carbonarius Cox and B. carbonarius Conrad, of which latter is common
 Pleurotomarioidea - Pleurotomariidae
Pleurotomaria sp. Defrance 1826 snail
misspelled as "Pleurtomaria sp."
 Murchisoniina - Eotomariidae
"Pleurotomaria missouriensis" = Euconospira missouriensis
"Pleurotomaria missouriensis" = Euconospira missouriensis Swallow 1860 snail
misspelled as "Pleurtomaria missouriensis"
Scyphozoa
 Conulariida - Conulariidae
Conularia crustula White 1880 jellyfish