Melnikova, 1975: 113

Type Species

Archaeosmiliopsis densus Melnikova, 1975: 113, pl. 2, fig. 1; Monotypy Melnikova 1975: 113

Type Specimen: Holotype; ZPAL IGD no. 3634; Verified; Thin Section

Type Locality: Say Sedek creek, Alichur Valley, SE Pamirs. Hettangian-Sinemurian, Early Jurassic.

In addition to the holotype, five topotypes were figured in Melnikova 1975: pl. 2: 2-6.



: Phaceloid, increasing by lateral budding. Wall, thick, epithecal. Septa wedge-like, differentiated into three size orders distributed after six-fold symmetry; the S1 septa thick and reaching the center, but not coalescing; the S2 septa shorter and slightly thinner; the S3 septa observed in adult corallites, about one-third of the S1 in length. Endotheca made of tabuloid and vesicular dissepiments. Microstructural traces in the form of a dark mid-septal line. Septal faces smooth


Development of the septal apparatus was analysed based on multiple transverse sections, and the process illustrated in a series of the following pictures in Melnikova 1975: pl. 2: 1, 3, 4a,4б.


From related genus Archaeosmilia Melnikova differs in phaceloid growth form.


Only the type species is known.


  • Central Asia; Early Jurassic

This page has been in preparation since 07-May-2009 07:27

This version was contributed by Ewa Roniewicz on 20-Nov-2010 17:42.

Page authors are: Ewa Roniewicz. Please contact the editor if you would like to contribute to the diagnosis of this taxon.

The editor is: Bernard Lathuilière

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