Garra Formation Brachiopods 2, Wellington Area: Pragian, Australia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Coelospria septata n. sp.
Rhynchonellata - Rhynchonellida - Glossinotoechiidae
Eoglossinotoechia catombalensis n. sp.
Rhynchonellata - Rhynchonellida - Hebetoechiidae
Sphaerirhynchia bellensis n. sp.
Hebetoechia sp.
Rhynchonellata - Rhynchonellida - Leiorhynchidae
? Werneckeella sp.
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
? Ancillotoechia sp. Havlicek 1959
? Ancillotoechia triangularis n. sp.
Rhynchonellata - Rhynchonellida - Machaerariidae
? Machaeraria sp. Cooper 1955
Rhynchonellata - Spiriferida - Delthyrididae
? Howellella cf. latisulcata
? Howellella cf. medioplicata
? Howellella cf. australis
? Howellella sp. Kozlowski 1946
sp. 1
? Howellella cf. textilis Talent 1963
Rhynchonellata - Spiriferida - Acrospiriferidae
Mauispirifer sp.
Rhynchonellata - Spiriferida - Cyrtinopsidae
Megakozlowskiella cf. cooperi (Gill 1952)
Rhynchonellata - Spiriferida - Xenomartiniidae
Quadrithyris robusta
Quadrithyris sp. Havlicek 1957
Rhynchonellata - Spiriferida - Reticulariidae
Reticulariopsis talenti n. sp.
? Reticulariopsis sp.
? Undispirifer sp.
Rhynchonellata - Spiriferida - Ambocoeliidae
Metaplasia cf. lenzi
Ambocoelia sp. Hall 1860
Rhynchonellata - Spiriferida - Adolfiidae
? Nikiforovaena sp.
Rhynchonellata - Spiriferida - Echinospiriferidae
Howittia cf. howitti
Rhynchonellata - Spiriferida - Cyrtiidae
Macropleura sp. Boucot 1963
Havlicekia cf. togata
Rhynchonellata - Atrypida - Punctatrypidae
Reticulatrypa chattertoni n. sp.
Rhynchonellata - Atrypida - Lissatrypidae
? Australina lenticulata
? Australina sp.
Rhynchonellata - Atrypida - Atrypidae
? Anatrypa sp.
? Desquamatia (? Desquamatia) sp. Alekseeva 1960
sp. 1
Desquamatia (Variatrypa) cf. penelopeae
Carinatinella sp.
synonym of Desquamatia
? Spinatrypina sp. Rzhonsnitskaya 1964
sp. 1
Atrypa reticularis (Linnaeus 1758)
original and current combination Anomia reticularis
Rhynchonellata - Atrypida - Atrypinidae
Spirigerina marginaliformis
Spirigerina supramarginalis (Khalfin 1948)
Atrypina talenti
Rhynchonellata - Atrypida - Carinatinidae
Biconostrophia cf. conifera
Rhynchonellata - Athyridida - Nucleospiridae
Nucleospira sp. Hall 1859
Rhynchonellata - Athyridida - Athyrididae
Protathyris spp.
Athyris cf. waratahensis
Rhynchonellata - Athyridida - Neoretziidae
Plectospira sp. Cooper 1942
Rhynchonellata - Athyridida - Anoplothecidae
Coelospira praedayi n. sp.
Rhynchonellata - Spiriferinida - Cyrtinidae
Cyrtina sp. Davidson 1858
sp. 1
Rhynchonellata - Terebratulida - Meganterididae
? Micidus spp.
spp. A
see common names

Geography
Country:Australia State/province:New South Wales
Coordinates: 32.6° South, 149.0° East (view map)
Paleocoordinates:9.0° South, 174.0° East
Basis of coordinate:based on nearby landmark
Geographic resolution:local area
Time
Period:Devonian Epoch:Early/Lower Devonian
Stage:Pragian 10 m.y. bin:Devonian 1
Key time interval:Pragian
Age range of interval:410.80000 - 407.60000 m.y. ago
Stratigraphy
Formation:Garra
Stratigraphic resolution:formation
Stratigraphy comments: Authors interpret the formation as spanning mid and late Lochkovian to Pragian, based on conodonts and Brachiopods, with the conclusion that "a mid Lochkovian to Pragian age is reasonable for the lowest two-thirds of the formation." The material here is largely from the middle third. Strusz et al. (1999--PBDB ref.7152) conclude, based on brachiopods, that the material reported here is Pragian. Farrell (1992--PBDB ref. 7169), after studying the Garra in the type area to the south, concludes that the formation is diachronous, being younger here in the Wellington area, mainly Pragian sulcatus Zone, and late Lochkovian in the type area.
Lithology and environment
Primary lithology: grainstone
Secondary lithology: calcareous "shale"
Includes fossils?Y
Lithology description: Lenz and Johnson (ref. 7167) basically just refer to "limestones," from which this material comes Strusz (1965, ref. 7170) mentions a broader suite of lithologies for the formation as a whole, as does Farrell (1992, ref. 7169). These are predominantly calcareous shale and detrital limestone, interspersed with biohermal and biostromal deposits. The detrial limestones include many types, but are mainly calcarenites. In some places there are algal limestones, pellet or oolite calcarenties.
Environment:marine indet.
Geology comments: From Lenz and Johnson, ref. 7167: "The Garra limestones are the product of relatively shallow water deposition; the lower approximately one-third of the formation represents a progressive transgressive sequence, the middle portion is the product of still-sand and gradual infilling, and the upper one-third represents progressive shallowing to supratidal conditions."
Taphonomy
Modes of preservation:body,replaced with silica
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some macrofossils
Reason for describing collection:taxonomic analysis
Collection method comments: Faunal list given by authors in terms of composite section rather than individual sections. Numbers of specimens given for numerous individual collections in terms of meters above base of composite section. All collections reported are from between 500 m and 850 m in the composite section (essentially the middle third). I have combined these
Taxonomic list comments:Rhynchonellida, Spiriferida, and Terebratulida only.
Metadata
Database number:25696
Authorizer:M. Foote Enterer:M. Foote
Modifier:M. Uhen Research group:marine invertebrate
Created:2002-09-23 09:26:29 Last modified:2018-11-15 13:00:25
Access level:the public Released:2002-09-23 09:26:29
Creative Commons license:CC BY
Reference information

Primary reference:
7168. A. C. Lenz and B. D. Johnson. 1985. Brachiopods of the Garra Formation (Lower Devonian), Wellington area, New South Wales, Australia: Rhynchonellida, Spiriferida, Terebratulida. Palaeontographica Abteilung A 188(4-6):71-104 [M. Foote/M. Foote/M. Foote]