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Platytrochus

Milne Edwards and Haime, 1848, p. 246

Type Species

Turbinolia stokesii Lea, 1833, p. 194, pl. 6, fig. 207; Subsequent Designation Milne Edwards and Haime, 1850, p. xvii

Type Specimen: Holotype; ; Not Traced; Dry Preserved

Type Locality: Middle Eocene (Claibornian) of Alabama

Deposition of type specimens unknown, but probably MNHN (d’Orbigny Collection); Well described by Vaughan (1900, p. 74).

Classification

Synonyms

Diagnosis

Corallum cuneiform, sometimes with alate edge costae, calice elliptical; GCD rarely more than 10 mm; theca imperforate; costae smooth or coarsely granular, originating by trifurcation; septa hexamerally arranged in 3-4 cycles; pali absent; columella linear-papillose.

Remarks

This genus and family was monographed by Cairns (1997), which included a phylogenetic analysis based on morphology. Sixteen species, 13 of which are fossil.

Distribution

  • North America; Paleocene - Eocene
  • Australasia; Eocene - Miocene
  • Western Pacific; Recent
Recent: 22-201 m; FIGURES: Cairns 1997; figs. 3i,6f, 10f.

This page has been in preparation since 08-Oct-2008 15:21

This version was contributed by Stephen D. Cairns on 19-Nov-2008 20:50.

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


Lateral view of corallum
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Calicular view of corallum
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view of coarsely granular costae
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