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Montlivaltiopsis

Alloiteau, 1952, p. 632

Probably a Montlivaltia

Type Species

Montlivaltia bellis Fromentel 1865, pl. 1 fig. 3; Monotypy

Type Specimen: Lectotype; MNHN M03517; Verified; Dry Preserved

Type Locality: Oxfordian of Champlitte (Haute-Saône, France)

Alloiteau 1957 described the genus in detail p.108

Description

Solitary corallum with a subcircular calice, not very deep. Radial elements are compact, free, straight or very weakly curved, bicuneiform costo-septa. Distal edge of septa with granules aligned in carinae perpendicular to the distal edge. Endotheca with vesicular dissepiments sloping down to the center. Exotheca made of dissepiments progressively covering the costae in the proximal direction. No columella. Parathecal wall.

Remarks

Fig. 63 in Alloiteau 1957 is very imaginative, an overgeneralization of an isolated feature on a silicified specimen.

Distribution

  • Western Europe; Late Jurassic

This page has been in preparation since 19-Aug-2009 16:02

This version was contributed by Bernard Lathuilière on 17-Jan-2013 14:06.

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

The editor is: Bernard Lathuilière


Lectotype of the type species of Montlivaltiopsis
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Lectotype of the type species of Montlivaltiopsis
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Lectotype of the type species of Montlivaltiopsis
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Lectotype of the type species of Montlivaltiopsis
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See all illustrations