Manak Stage, Unit 29, Isfara River S-D Section (Devonian of Tajikistan)

Where: Tajikistan (40.0° N, 70.5° E: paleocoordinates 4.9° S, 73.5° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Pragian (410.8 - 407.6 Ma)

Environment/lithology: marine; shelly/skeletal, black, gray limestone

• "The investigated sections are found at the southern margin of the basin where limestones continuously accumulated during Upper Silurian and Devonian time.."
• "(29) Limestones, black or dark grey on fresh surfaces, reddish on weathered surfaces...organogenous-detrital..."

Primary reference: J. S. Biske, V. B. Gorianov, and M. A. Rzonsnickaja. 1977. Tien-Shan. In A. Martinsson (ed.), The Silurian-Devonian boundary IUGS Serie(5):227-237 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 13985: authorized by Michael Foote, entered by Michael Foote on 06.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Conodonta
 Ozarkodinida -
Ozarkodina steinhornensis Ziegler 1956 conodont
Strophomenata
 Strophomenida - Douvillinidae
Rhynchonellata
 Pentamerida - Clorindidae
 Pentamerida - Gypidulidae
 Atrypida - Atrypinidae
 Spiriferida - Cyrtiidae
 Rhynchonellida - Machaerariidae
 Rhynchonellida - Trigonirhynchiidae
Trilobita
 Corynexochida - Styginidae
Anthozoa
 Stauriida - Ptenophyllidae
 Stauriida - Laccophyllidae
 Cystiphyllida - Goniophyllidae
Rhizophyllum aff. bohemicum Pocta 1902 horn coral
 Heliolitida - Heliolitidae
Heliolites praeporosus tabulate coral
Helioplasma gippslandica tabulate coral
Helioplasma jackii tabulate coral
 Favositida - Favositidae
Favosites stellaris tabulate coral
Favosites brusnitzini tabulate coral
 Favositida - Cleistoporidae
Riphaeolites virgosus tabulate coral