Alloiteau, 1957, p. 87

Parasmiliopsis Alloiteau, 1957, p. 87 is a junior synonym (available and invalid), see Smilotrochus Milne Edwards and Haime, 1851, p. 58.

Type Species

Trochosmilia cenomana de Fromentel, 1863, p. 261, pl. 64, fig. 1; Original Designation Alloiteau, 1957, p. 87

Type Specimen: Lectotype; ; Not Traced; Unknown

Type Locality: Cenomanian of France (Le Mans, Sarthe).

The type material of the type species is housed at MNHN (Paris) under M03574. Under the same inventory number there are specimens that distinctly differ from the form chosen by Alloiteau (1957, p. 87, pl. 8, fig, 13) and belong forms of different suborders, e.g. Trochosmilia (compare Baron-Szabo, 2002, pl. 32, fig. 4; which had been put down as holotype following the inventory information that accompanied that specimen when Baron-Szabo studied the material in 1999).



As previously indicated by Kuzmicheva (1987), the septal arrangment in Smilotrochus often shows a pseudo-dendrophyllid development (also compare Baron-Szabo, 2008, p. 80 ff.). In addition, their axial septal ends might terminate in claviform, paliform-like, and/ or irregularly trabecular extentions. Re-study of the (lecto-)type material of the type species of Parasmiliopsis (=the specimen that was described and illustrated by Alloiteau in 1957) by Baron-Szabo in 2009 revealed that it has skeletal structures that very closely correspond to those features. Therefore, its synonmy with Smilotrochus is suggested. Also see Remarks under Plesioparasmilia Alloiteau, 1952.


  • Central Europe; Late Cretaceous

This page has been in preparation since 02-Jun-2007 12:36

This version was contributed by Rosemarie Baron-Szabo on 04-Sep-2010 20:01.

Page authors are: Rosemarie Baron-Szabo. Please contact the editor if you would like to contribute to the diagnosis of this taxon.

The editor is: Rosemarie Baron-Szabo

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