Callytharra Springs, cycle 4 (Permian of Australia)

Where: Western Australia, Australia (25.9° S, 115.5° E: paleocoordinates 60.6° S, 99.3° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Callytharra Formation, Sakmarian (293.5 - 290.1 Ma)

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified, medium-grained, shelly/skeletal, sandy, calcareous mudstone and lithified, shelly/skeletal wackestone

• Normal marine, well oxygenated conditions within storm wave base. Local storm winnowing and bryozoan meadows.
• Bioclastic sandy mudstones (sand mainly composed of fenestrate bryozoa and brachiopod debris with a broad peak in the medium to coarse size fractions). Terrigenous mud matrix. Decreasing siliciclastic sand (mainly very fine) content upsection. High density of subaligned fenestrate bryozoan sheets. Lithology 2: Indurated wackestones. Very low angle trough cross-bedding, skeletal lags. Large bioclasts in random orientations or in small aligned clusters.

Size class: macrofossils

Primary reference: M. Dixon and D. W. Haig. 2004. Foraminifera and their habitats within a cool-water carbonate succession following glaciation, Early Permian (Sakmarian), Western Australia. Journal of Foraminiferal Research 34:308-324 [M. Clapham/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 95201: authorized by Matthew Clapham, entered by Matthew Clapham on 11.04.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Foraminifera
  -
Vervilleina spp. Groves 1999
  - Spiroplectamminidae
Tubothalamea
 Miliolida - Cornuspiridae
Foraminifera
 Trochamminacea - Trochamminidae
Trochammina spp. Parker and Jones 1859
 Textulariina - Hyperamminidae
 Hippocrepinacea - Hyperamminoididae
 Lagenina - Syzraniidae
 Lagenina - Ichtyolariidae
Crinoidea
 Ampelocrinida - Calceolispongiidae
Calceolispongia sp. Etheridge 1915 Sea lily
Strophomenata
 Productida - Aulostegidae
"Aulosteges spinosus" = Saeptathaerus spinosus, Taeniothaerus sp.
"Aulosteges spinosus" = Saeptathaerus spinosus Hosking 1931
Taeniothaerus sp. Whitehouse 1928
 Productida - Strophalosiidae
"Heteralosia etheridgei" = Etherilosia etheridgei
"Heteralosia etheridgei" = Etherilosia etheridgei Prendergast 1943
 Strophomenida - Rugosochonetidae
"Neochonetes pratti" = Neochonetes (Sommeriella) pratti
"Neochonetes pratti" = Neochonetes (Sommeriella) pratti Davidson 1859
Rhynchonellata
 Spiriferida - Trigonotretidae
"Trigonotreta neoaustralis" = Koenigoria neoaustralis
"Trigonotreta neoaustralis" = Koenigoria neoaustralis Archbold and Thomas 1986
 Spiriferida - Elythidae
Spirelytha fredericksi Archbold and Thomas 1984
 Spiriferinida - Punctospiriferidae
 Athyridida - Athyrididae
Cleiothyridina sp. Buckman 1906
Cleiothyridina ovalis Shi and Archbold 1993