Jiantianba Reef, Lichuan (Permian of China)

Also known as Reef 223

Where: Hubei, China (30.5° N, 109.1° E: paleocoordinates 10.6° N, 95.1° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Changxing Formation, Changhsingian (254.2 - 252.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified limestone

• Reef builders: Frame-building and baffling

•organisms: hypercalcified sphinctozoan and inozoan sponges, sclerosponges, stromatoporoid sponge, bryozoans, and hydrozoans.

•Binding organisms: Archaeolithoporella, Palaeoaplysina, Tubiphytes, and cyanobacteria.

•reef dwellers:

•Echinoderms, ammonites, bivalves, brachiopods, gastropods, benthic foraminifera, calcareous algae, and single rugose corals.

•Rock type and reef-related depositional characteristic:

•Fore-reef slope: spiculitic-calcispherical cherty wackestone with reef breccias Reef core: sponge framestone and bafflestone, Archaeolithoporella and cyanobacteria bindstone, and sponge framestone with the encrusting Archaeolithoporella

•Reef flat (reef crest): packstone with reef breccia

•Reef base: echinodermal packstone to grainstone

•Back-reef lagoon: bioclastic packstone with calcareous algae, gastropods, and foraminifers.

•Reef type:

•Metazoan reef at the shallow carbonate platform margin

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: J. S. Fan and W. Zhang. 1985. Sphinctozoans from Late Permian Reefs of Lichuan, West Hubei, China. Facies 13:1-44 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 74928: authorized by Wolfgang Kiessling, entered by Uta Merkel on 06.09.2007, edited by Mihaela Krause

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Brachiopoda
  -
Brachiopoda indet.2 Cuvier 1805
Bryozoa
  -
Bryozoa indet.2 Ehrenberg 1831
Cephalopoda
 Ammonoidea -
Gastropoda
  -
Gastropoda indet.2 Cuvier 1795 snail
Bivalvia
  -
Bivalvia indet.2 Linnaeus 1758 clam
Hydrozoa
  -
Hydrozoa indet.2 Owen 1843
  - Nigriporellidae
Tubiphytes sp.2 Maslov 1956
Anthozoa
 Rugosa -
Rugosa indet.2 horn coral
Demospongiae
 Verticillitida - Colospongiidae
"Waagenella sp." = Colospongia
"Waagenella sp." = Colospongia Laube 1865 demosponge
 Verticillitida - Verticillitidae
Sinocoelia lepida n. gen. n. sp.
Sinocoelia lepida n. gen. n. sp. Zhang and Fan 1985 demosponge
 Agelasida - Sebargasiidae
Polycystocoelia sinica n. sp. Zhang 1983 demosponge
 Agelasida - Guadalupiidae
"Lichuanospongia cf. typica" = Cystauletes typica
"Lichuanospongia cf. typica" = Cystauletes typica Zhang 1983 demosponge
unclassified
  -
Cyanobacteria sp.2 Stanier 1973
Cyanophyceae
  - Aphralysiaceae
Rhodophyceae
 Archaeolithophyllales - Palaoaplysinaceae
Palaeoaplysina sp.2 Krotov 1888
Foraminifera
 Foraminifera -