Sample 7322, Mt Murray, Georgina Basin, Thorntonia Area (Cambrian to of Australia)

Where: Queensland, Australia (21.8° S, 140.0° E: paleocoordinates 25.5° N, 168.9° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Monastery Creek Phosphorite Member (Beetle Creek Formation), Templetonian to Templetonian (508.0 - 503.0 Ma)

• late Triplagnostus gibbus to early Acidusus atavus Zone, unknown position within member

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, phosphatic, cherty/siliceous shale and lithified phosphorite

• intracratonic basin; deposited in the more hypersaline shoal areas of a restricted marine shelf, shoals were shallow submergent to semi-emergent within a dominantly calcareous sedimentary regime; phosphoritic sediments were locally winnowed, reworked and sorted to accumulate in raised-energy environments within lagoons and embayments. Phosphogenesis on semi-emergent falts generated nodules, hardgrounds, phosphocretes and phosphatic calcimudstone.
• thin bedded calcareous and siliceous phosphorite (laminated to medium bedded, indurated to friable, brown, grey, white, yellow or pink), phosphatic chert and chert, phosphatic and siliceous siltstone and shale (laminated to thin bedded, indurated to fissile to friable), together with shale and fetid limestone. The phosphorites include collophane calcimudstone and pelletal grainstone types.

Size class: macrofossils

Preservation: replaced with phosphate

Collection methods: bulk,

• All material is housed in the Australian Geological Survey Organisation (AGSO) or in the Institut für Paläontologie, Universität Bonn (IPB)

Primary reference: P. D. Kruse. 2002. Biostratigraphic potential of Middle Cambrian hyoliths from the eastern Georgina Basin. Alcheringa 26(3):353-398 [W. Kiessling/T. Schossleitner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 70016: authorized by Wolfgang Kiessling, entered by Thomas Schossleitner on 14.03.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Hyolitha
 Hyolithida - Angusticornidae
Yuku tjurtu
Hyolithomorpha
 Sulcavitida - Inflaticornidae
? Gerkella thuka
Hyolitha
 Orthothecida -
""Actinotheca" sp." = Cupitheca
""Actinotheca" sp." = Cupitheca Duan 1984