Matan 2, Heshan Formation, Matan Section, Heshan City (Permian of China)

Where: Guangxi, China (23.8° N, 108.9° E: paleocoordinates 5.3° N, 99.3° E)

• coordinate stated in text

• small collection-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: open shallow subtidal; shelly/skeletal, gray, silty, cherty/siliceous bafflestone

• Inner shelf near sponge-algal patch reef.
• Hydrozoan-algal bafflestone to packstone. Sparse chert nodules in uppermost part of bed. Bed is 10 cm thick.

Size class: macrofossils

Preservation: replaced with silica

Collection methods: bulk, chemical, hydrochloric,

Primary reference: M. E. Clapham and D. J. Bottjer. 2007. Permian marine paleoecology and its implications for large-scale decoupling of brachiopod and bivalve abundance and diversity during the Lopingian (Late Permian). Palaeogeography, Palaeoclimatology, Palaeoecology 249:283-301 [D. Bottjer/M. Clapham/M. Clapham]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 50024: authorized by David Bottjer, entered by Matthew Clapham on 04.05.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Nautiloidea -
Nautiloidea indet.
Nautiloidea indet. Agassiz 1847 nautiloid
Gastropoda
  -
Gastropoda "genus C"
Gastropoda "genus C" Cuvier 1795 snail
Pan and Erwin (2002) genus C
 Neritoidea - Naticopsidae
Naticopsis sp.
Naticopsis sp. M'Coy 1844 snail
 Cerithimorpha - Orthonemidae
Palaeostylus sp.
Palaeostylus sp. Mansuy 1914 snail
 Caenogastropoda - Meekospiridae
Meekospira sp.
Meekospira sp. Ulrich and Scofield 1897 snail
 Caenogastropoda - Goniasmatidae
Platyzona sp.
Platyzona sp. Knight 1945 snail
 Euomphalina - Anomphalidae
Anomphalus sp.
Anomphalus sp. Meek and Worthen 1866 snail
 Pleurotomariacea -
"Pleurotomariacea indet." = Pleurotomarioidea
"Pleurotomariacea indet." = Pleurotomarioidea Swainson 1840 snail
 Bellerophontida - Euphemitidae
Warthia sp.
Warthia sp. Waagen 1880 snail
 Cycloneritida - Trachyspiridae
Trachydomia sp., Trachyspira sp.
Trachydomia sp. Meek and Worthen 1866 snail
Trachyspira sp. Gemmellaro 1889 snail
 Murchisoniina - Lophospiridae
Manzanospira sp.
Manzanospira sp. Batten 1989 snail
 Murchisoniina - Phymatopleuridae
Callitomaria sp.
Callitomaria sp. Batten 1956 snail
 Murchisoniina - Porcelliidae
Porcellia sp.
Porcellia sp. Léveillé 1835 snail
 Murchisoniina - Soleniscidae
Soleniscus sp.
Soleniscus sp. Meek and Worthen 1860 snail
Bivalvia
 Pectinida - Heteropectinidae
Girtypecten sp.
Girtypecten sp. Newell 1938 scallop
 Arcida - Parallelodontidae
Grammatodon sp.
Grammatodon sp. Meek and Hayden 1860 clam
Rhynchonellata
 Athyridida - Athyrididae
Araxathyris sp.
Araxathyris sp. Grunt 1965
 Spiriferinida - Paraspiriferinidae
Paraspiriferina sp.
 Spiriferida - Ambocoeliidae
Crurithyris sp.
Crurithyris sp. George 1931
 Spiriferida - Elythidae
Phricodothyris sp.
Phricodothyris sp. George 1932
 Orthida - Schizophoriidae
Acosarina sp.
Acosarina sp. Cooper and Grant 1969
 Rhynchonellida - Pontisiidae
Prelissorhynchia sp.
Prelissorhynchia sp. Xu and Grant 1994
 Terebratulida - Notothyrididae
Notothyris sp.
Notothyris sp. Waagen 1882
 Terebratulida - Dielasmatidae
Dielasma sp.
Dielasma sp. King 1856
Strophomenata
 Productida - Aulostegidae
Costisteges dongluoensis
 Productida -
Spinomarginifera sp.
 Orthotetida - Derbyiidae
Derbyia sp.
Derbyia sp. Waagen 1884
 Orthotetida - Schuchertellidae
Streptorhynchus sp.
Hydrozoa
  -
"Hydrozoa" indet.
"Hydrozoa" indet. Owen 1843
Includes several varieties of "hydrozoa" and probably sponges
Demospongiae
 Agelasida - Guadalupiidae
Cystothalamia sp.
Cystothalamia sp. Girty 1908 demosponge
 Agelasida - Thaumastocoeliidae
Sollasia sp.
Sollasia sp. Steinmann 1882 demosponge
Chlorophyceae
 Dasycladales - Dasycladaceae
? Dasycladacea indet.
? Dasycladacea indet. Radoicic 1969
Foliate probably dasycladacea
Foraminifera
 Fusulinoidea - Boultoniidae
Palaeofusulina sp.