Ha Lang, Lower Toc Tat Beds (Devonian of Vietnam)

Where: Vietnam (22.7° N, 106.7° E: paleocoordinates 1.6° N, 112.4° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Lower Member (Toc Tat Formation), Frasnian (382.7 - 372.2 Ma)

• member-level stratigraphic resolution

Environment/lithology: coastal; lithified, argillaceous shale and lithified limestone

Size class: macrofossils

Primary reference: T. Tong-Dzuy, T. H. Dang, D. H. Nguyen, D. K. Nguyen, H. H. Nguyen, T. D. Nguyen, H. P. Ta, K. N. Pham, and N. T. Doan. 1988. Stratigrafiya i tselenteraty Dewona W'etnama, 1: Stratigrafiya [Devonian stratigraphy and coelenterata of Vietnam, 1: Stratigraphy] 5-184 [W. Kiessling/U. Merkel/U. Merkel]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 83245: authorized by Wolfgang Kiessling, entered by Uta Merkel on 13.08.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Ostreida - Posidoniidae
Strophomenata
 Strophomenida - Chonetidae
Chonetes sp. Fischer de Waldheim 1830
 Productida - Sentosiidae
 Productida - Echinoconchidae
 Productida - Productellidae
Rhynchonellata
 Rhynchonellida -
 Rhynchonellida - Camarotoechiidae
 Orthida - Schizophoriidae
 Atrypida - Atrypidae
 Spiriferida - Cyrtospiriferidae
 Athyridida - Athyrididae
Lingulata
 Lingulida - Lingulidae
Barroisella sp. Cooper 1942
Lingula sp. BruguiƩre 1797
Tentaculita
 Homoctenida - Homoctenidae
 Styliolinida - Styliolinidae
Styliolina sp. Karpinsky 1884
Conodonta
 Ozarkodinida - Polygnathidae
Polygnathus sp. Hinde 1879 conodont
Ancyrodella sp. conodont
 Ozarkodinida - Palmatolepidae
Palmatolepis subrecta Miller and Youngquist 1947 conodont
 Ozarkodinida -