Halysitid Community, Canberra Formation, Canberra locality CC57 (Silurian of Australia)

Where: Australian Capital Territory, Australia (35.3° S, 149.1° E: paleocoordinates 4.3° N, 175.4° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Canberra Formation, Wenlock (433.4 - 427.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; silty grainstone and calcareous mudstone

• Acid volcanogenic material common in the formation, which is overlain by dacitic to rhyolitic vaolcanics. The community thus appears associated with tectonically unstable areas, with likely strong current activity...moderately energetic environment, probably nearly wave base, thait is BA 3"
• Community in general described as coming from "shales interbedded with thin silty limestones," thin-bedded generally silty calcarenites," and "thin interbedded siltstones and mudstones, which may be calcareous"

Size class: macrofossils

Collection methods: Table 14.2 (includes specimen counts).

Primary reference: D. L. Strusz and M. J. Garratt. 1999. Australian communities. In A. J. Boucot, J. D. Lawson (eds.), Paleocommunities - a case study from the Silurian and Lower Devonian 177-199 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 25649: authorized by Michael Foote, entered by Michael Foote on 19.09.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Rhynchonellata
 Pentamerida -
Pentamerida indet. Schuchert and Cooper 1931
 Orthida - Dalmanellidae
? Isorthis sp. Kozlowski 1929
 Orthida - Draboviidae
? Salopina sp. Boucot 1960
 Atrypida - Atrypidae
 Spiriferida -
Spiriferida indet. Waagen 1883
 Spiriferida - Delthyrididae
? Howellella sp. Kozlowski 1946
Strophomenata
 Strophomenida - Chonetidae
Chonetidae indet. Bronn 1862
 Strophomenida - Aegiromenidae
Aegiria sp. Opik 1933
 Strophomenida - Leptostrophiidae
"? Leptostrophiella (? Leptostrophiella) oepiki" = Mesoleptostrophia
"? Leptostrophiella (? Leptostrophiella) oepiki" = Mesoleptostrophia
Bivalvia
  -
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam
Deuteropoda
  -
Ostracoda indet. Latreille 1802 ostracod
Trilobita
 Odontopleurida -
Odontopleurida indet. Whittington 1959 trilobite
 Corynexochida - Styginidae
Scutelluidae indet. Richter and Richter 1955 trilobite
 Phacopida - Encrinuridae
Pacificurus cf. mitchelli Foerste 1888 trilobite
 Phacopida - Cheiruridae
Onycopyge sp. Woodward 1880 trilobite
 Phacopida - Calymenidae
"? Apocalymene sp." = Gravicalymene
"? Apocalymene sp." = Gravicalymene Shirley 1936 trilobite
 Lichida - Lichidae
? Platylichas sp. Gürich 1901 trilobite
Anthozoa
 Rugosa -
Rugosa indet. horn coral
solitary
 Cystiphyllida - Goniophyllidae
 Cystiphyllida - Holmophyllidae
? Holmophyllum sp. Wedekind 1927 horn coral
 Cystiphyllida - Tryplasmatidae
 Cystiphyllida - Cystiphyllidae
Cystiphyllum sp. Lonsdale 1839 horn coral
 Stauriida - Lykophyllidae
 Stauriida - Entelophyllidae
 Stauriida - Mucophyllidae
 Favositida - Alveolitidae
Alveolitidae indet. Duncan 1872 tabulate coral
 Favositida - Favositidae
Favositidae indet. Dana 1846 tabulate coral
columnar
Favosites spp. Lamarck 1816 tabulate coral
 Favositida - Pachyporidae
Striatopora spp. Hall 1851 tabulate coral
genus name in quotes
 Auloporida - Auloporidae
Auloporidae indet. Milne-Edwards and Haime 1850 tabulate coral
 Auloporida - Syringoporidae
Syringopora spp. Goldfuss 1826 tabulate coral
 Heliolitida - Heliolitidae
Heliolites spp. Dana 1846 tabulate coral
 Heliolitida - Halysitidae