Guttenberg Formation, Glenhaven Member (Ordovician of the United States)

Where: Wisconsin (43.0° N, 91.0° W: paleocoordinates 20.4° S, 63.1° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Glenhaven Member (Guttenberg Formation), Rocklandian (457.3 - 449.6 Ma)

• Two localities, but from same "event" horizon.

• bed-level stratigraphic resolution

Environment/lithology: offshore; brown, yellow, calcareous mudstone and brown shale

• Origin of shale thought to be from blanketing (smothering) event of enigmatic planktonic algal bloom. Substrate was a fine-grained lime mud; Estimated depth of 10-20 m.
• Yellow to brown, wavy-bedded, lime mudstone interbedded with thin-bedded, brown shale

Size classes: macrofossils, mesofossils

Collection methods: quarrying,

Primary reference: J. C. Brower and K.M. Kile. 1994. Paleoautecology and ontogeny of Cupulocrinus levorsoni Kolata, a Middle Ordovician crinoid from the Guttenberg Formation of Wisconsin. New York State Museum Bulletin 481:25-44 [G. Webster/G. Webster/S. Bruning]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 81283: authorized by Phil Novack-Gottshall, entered by Phil Novack-Gottshall on 16.06.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Asteroidea
  -
Asteroidea indet.
Asteroidea indet. de Blainville 1830 sea star
asteroid
Crinoidea
  -
? Crinoidea indet.
? Crinoidea indet. Miller 1821 Sea lily
 Monobathrida - Glyptocrinidae
Pycnocrinus gerki
 Flexibilia - Cupulocrinidae
Cupulocrinus levorsoni
Cystoidea
  -
Cystoidea indet.
Cystoidea indet. von Buch 1846
cystoid
Rhynchonellata
 Orthida - Plaesiomyidae
Dinorthis sp.
Dinorthis sp. Hall and Clarke 1892
 Orthida - Hesperorthidae
Hesperorthis tricenaria
Strophomenata
 Strophomenida - Strophomenidae
Strophomena sp.
Strophomena sp. Rafinesque and De Blainville 1824
 Strophomenida - Rafinesquinidae
Rafinesquina sp.
Rafinesquina sp. Hall and Clarke 1892
 Strophomenida - Sowerbyellidae
Sowerbyella sp.
Sowerbyella sp. Jones 1928
Stenolaemata
  -
Stenolaemata "ramose", Stenolaemata "bifoliate", Stenolaemata "encrusting"
Stenolaemata "ramose" Borg 1926
Ramose stenolaemate
Stenolaemata "bifoliate" Borg 1926
bifoliate stenolaemate
Stenolaemata "encrusting" Borg 1926
encrusting stenolaemate; "Encrusting colony on Rafinesquina"
Trilobita
 Asaphida - Asaphidae
Asaphidae indet.
Asaphidae indet. Burmeister 1843 trilobite
Isotelid
 Phacopida - Phacopidae
Phacopidae indet.
Phacopidae indet. Hawle and Corda 1847 trilobite
Phacopid
 Phacopida - Cheiruridae
Cheiruridae indet.
Cheiruridae indet. Hawle and Corda 1847 trilobite
ceraurid trilobite