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Foveolocyathus

Cairns, 1997, p. 26

Type Species

Trematotrochus verconis Dennant, 1904, p. 5, pl. 1, fig. 4; Original Designation

Type Specimen: Holotype; NMV F96127; Verified; Dry Preserved

Type Locality: Recent; St. Vincent Gulf, Victoria, 27-40 m

Neotype designated by Cairns and Parker (1992) was not necessary, as the holotype and paratypes exist at the NMV (Cairns, 2004:294); type species well described by Cairns and Parker (1992: 31) but as T. alternans.

Classification

Diagnosis

Corallum ceratoid, but elliptical in cross section; GCD up to 9 mm; theca imperforate, but exteriorly deeply pitted; costae granular, originating by trifurcation; septa hexamerally arranged in up to 4-almost 5 cycles (up to 72 septa); pali absent; columella papillose.

Comparisons

Differs from Trematotrochus by having imperforate theca and lacking pali.

Remarks

This genus and family was monographed by Cairns (1997), which included a phylogenetic analysis based on morphology. Four species, two of them known as fossils (Cairns, 2004).

Distribution

  • Australasia; Eocene
  • Western Pacific; Recent
Recent: 27-367 m; FIGURES: Cairns 1997: figs. 3e, 6b, 9f

This page has been in preparation since 18-Jul-2008 18:31

This version was contributed by Stephen D. Cairns on 19-Nov-2008 20:36.

Page authors are: Stephen D. Cairns. Please contact the editor if you would like to contribute to the diagnosis of this taxon.

The editor is: Stephen D. Cairns


Calicular view of corallum
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view of pitted theca between costae
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Calicular view of corallum
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Lateral view of corallum
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