Zeravshan-Hissar mountain region, Obisafitskogo Type, Nizhnemagianskaya Suite (Devonian of Tajikistan)

Where: Tajikistan (39.0° N, 69.0° E: paleocoordinates 1.2° S, 71.5° E)

• coordinate estimated from map

• basin-level geographic resolution

When: Nizhnemagianskaya Formation, Late/Upper Emsian (402.5 - 391.9 Ma)

• Upper Emsian; The Nizhnemagianskaya Suite has a thickness of 320m.

• formation-level stratigraphic resolution

Environment/lithology: marine; cherty/siliceous limestone and black limestone

Size classes: macrofossils, mesofossils, microfossils

Primary reference: A. I. Lavrusevich, V. I. Lavrusevich, and V. D. Saltovskaya. 1973. Daunton i nizhniy devon Zeravshano-Gissarskoy gornoy oblasti. The Downtonian and lower Devonian of the Zeravshan-Hissar mountain region. Sovetskaya Geologiya 12:10-25 [M. Aberhan/S. Nurnberg/S. Nurnberg]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 45793: authorized by Martin Aberhan, entered by Sabine Nürnberg on 02.12.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Rhynchonellata
 Pentamerida - Gypidulidae
 Rhynchonellida - Uncinulidae
 Rhynchonellida - Trigonirhynchiidae
 Atrypida - Carinatinidae
 Atrypida - Karpinskiidae
 Spiriferida - Xenomartiniidae
Strophomenata
 Strophomenida - Chonetidae
 Productida - Productellidae
Cephalopoda
 Agoniatitida - Mimosphinctidae
Erbenoceras advolvens Erben 1960 ammonite
 Agoniatitida - Mimoceratidae
Gyroceratites ? laevis Eichenberg 1931 ammonite
G. laevis/gracilis?
Anthozoa
 Cystiphyllida - Goniophyllidae
Calceola sandalina Linnaeus 1771 horn coral
 Stauriida - Ptenophyllidae
 Favositida - Favositidae
Pachyfavosites exilis tabulate coral
Favosites regularissimus tabulate coral
Favosites gracilis tabulate coral
Favosites robustus tabulate coral
Favosites goldfussi Lecompte 1939 tabulate coral
 Heliolitida - Heliolitidae
Heliolites vulgaris tabulate coral
Stromatoporoidea
 Actinostromatida - Actinostromatidae
Actinostroma aff. clathratum stromatoporoid sponge
Actinostroma aff. mamontovi stromatoporoid sponge
 Clathrodictyida - Gerronostromatidae
Gerronostroma oblicum stromatoporoid sponge
subsp. recta
 Syringostromatida - Stachyoditidae
Stachyodes gracilis stromatoporoid sponge
subsp. kuznetskensis
 Stromatoporellida - Stromatoporellidae
Stromatoporella loutougini stromatoporoid sponge
 Stromatoporellida - Trupetostromatidae
"Flexiostroma crispum" = Trupetostroma
"Flexiostroma crispum" = Trupetostroma stromatoporoid sponge
 Amphiporida - Amphiporidae
Amphipora intexta stromatoporoid sponge
Amphipora ex gr. ramosa Phillips 1841 stromatoporoid sponge