Plectodonta-Reticulariopsis Comm., Nandan Fm., Luofu, Nandan Co., Guangxi Prov. (Devonian of China)

Where: Guangxi, China (24.5° N, 115.6° E: paleocoordinates 2.3° S, 114.9° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Nandan Formation, Eifelian (393.3 - 387.7 Ma)

• "Abundant specimens of Nowakia sulcata, and rare goniatites, provide the age information for this Nandan Formation community."

• formation-level stratigraphic resolution

Environment/lithology: marine; mudstone

• "The Nowakia and goniatites are pelagic, and the trilobites may be epibenthic as these beds have not yielded trilobite trace fossils. We interpret these strata as BA 4-5, relatively quiet water, lower oxygen."
• "brachiopods occur as very scattered, chiefly disarticulated, small specimens. The beds consist of dark-colored, thin-bedded (about 0.5 cm) mudstone."

Collection methods: For complete list, see Xu (1979), Acta Palaeontologica Sinica 18(4):362-380 (table 1).

Primary reference: Y. Wang, A. J. Boucot, J.Y. Rong and X.C. Yang. 1987. Community paleoecology as a geologic tool: the Chinese Ashgillian-Eifelian (latest Ordovician through early Middle Devonian) as an example. Geological Society of America Special Paper 211:1-100 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 25817: authorized by Michael Foote, entered by Michael Foote on 25.09.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Agoniatities sp.
Lingulata
 Lingulida - Lingulidae
? Lingula sp.
? Lingula sp. Bruguiére 1797
 Lingulida - Discinidae
Orbiculoidea tarda, Orbiculoidea sp.
Orbiculoidea sp. d'Orbigny 1847
Craniata
 Craniopsida - Craniopsidae
Craniops sp.
Craniops sp. Hall 1859
Strophomenata
 Strophomenida - Sowerbyellidae
Plectodonta sanglangensis
 Strophomenida - Aegiromenidae
Nabiaoia pusilla n. gen. n. sp.
Nabiaoia pusilla n. gen. n. sp.
 Strophomenida -
Perichonetes mirabilis n. gen. n. sp.
Perichonetes mirabilis n. gen. n. sp.
 Strophomenida - Chonetidae
Chonetidae indet., Chonetes sp.
Chonetidae indet. Bronn 1862
Chonetes sp. Fischer de Waldheim 1830
Rhynchonellata
 Atrypida - Septatrypidae
? Septatrypa elliptica n. sp.
 Atrypida - Glassiidae
"Cryptatrypa curvirostris n. sp." = Glassia
"Cryptatrypa curvirostris n. sp." = Glassia
 Spiriferida -
Paracostanoplia mirabilis
 Spiriferida - Reticulariidae
Reticulariopsis sp.
 Spiriferida -
Costanoplia faceta, Tangxiangia delicata, Paraplicanoplia nana, Luofuia delicata
 Spiriferida - Ambocoeliidae
Ilmenia cf. subhians
 Orthida - Draboviidae
Salopina aspera n. sp., ? Dalmanellopsis sp., Muriferella pygmaea n. sp.
 Orthida - Rhipidomellidae
Mendacella sp.
Mendacella sp. Cooper 1930
 Athyridida - Athyrididae
? Athyrisina sp.
 Athyridida - Neoretziidae
? Plectospira minor n. sp.
 Athyridida - Rhynchospirinidae
"? Rhynchospira sp." = Rhynchospirina
"? Rhynchospira sp." = Rhynchospirina Schuchert and LeVene 1929
Cephalopoda
 Agoniatitida - Agoniatitidae
Paraphyllites tabulodes
 Agoniatitida - Pinacitidae
Foordites occultus, Foordites platypleura, Pinacites jugleri
Foordites platypleura Frech 1889 ammonite
Pinacites jugleri Roemer 1843 ammonite
 Goniatitida -
Goniatitida indet.
Goniatitida indet. Hyatt 1884 ammonite
Bivalvia
  -
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam
 Nuculanida - Malletiidae
? Palaeoneilo sp.
? Palaeoneilo sp. Hall and Whitfield 1869 clam
 Cardiida -
? Cypricardella sp.
? Cypricardella sp. Hall 1856 clam
 Lucinida - Mactromyidae
Paracyclas sp.
Paracyclas sp. Hall 1843 clam
Tentaculita
 Nowakiida - Nowakiidae
Nowakia sulcata
Nowakia sulcata Roemer 1843
Trilobita
  -
Trilobita indet.
Trilobita indet. Walch 1771 trilobite
 Phacopida - Phacopidae
Ductina vietnamica
 Proetida - Aulacopleuridae
Cyphaspides orientalis, Cyphaspides paradoxus