Roniewicz, 1989: 98
Parastraeomorpha minuscula Roniewicz, 1989:98; Original Designation Roniewicz, 1989:98
Type Specimen: Holotype; NHMW 1982/57/17; Verified; Dry Preserved
Type Locality: Northern Calcareous Alps, Fischerwiese. Zlambach Beds, Rhaetian, Late Triassic.
In the NHMW collection, beside the holotype, specimens from Fischerwiese and from Sommeraukogel are present.
Thamnasterioid. Septa laminar, thin-trabecular. Columella styliform. Septal faces smooth or with rudimentary pennular expansions. Synapticulae large, independent of other structures. Dissepiments thin, rare.
Described and figured, with microstructural details, in Roniewicz, 1989:98, pl.30, fig. 1, 2.
Parastraeomorpha, in general morphology similar to Astraeomorpha Reuss, differs from it in a lack of menianes and in development of synapticulae dominating over other horizontal skeletal structures.
Two species are known.
Alpine region, SE Pamirs, NW Caucasus: Rhaetian. Peru: Norian. North America: Norian-Rhaetian.
- Southern Europe; Late Triassic
- Eastern Europe; Late Triassic
- Central Asia; Late Triassic
- North America; Late Triassic
- Central America; Late Triassic
This page has been in preparation since 22-Mar-2009 13:40
This version was contributed by Ewa Roniewicz on 06-Nov-2010 17:17.
Page authors are: Ewa Roniewicz. Please contact the editor if you would like to contribute to the diagnosis of this taxon.
The editor is: Ewa Roniewicz