Turbinolia
Lamarck, 1816, p. 229
Type Species
T. sulcata Lamarck, 1816, p. 230, no fig; Subsequent Designation Milne Edwards and Haime, 1850, p. xiv
Type Specimen: Holotype; ; Not Traced; Unknown
Type Locality: Eocene: fossile de Grignon
type probably in Lamarck Collection of MNHN, Paris; Best described by Milne Edwards and Haime (1850, p. 13-15).
Classification
Synonyms
Diagnosis
Corallum ceratoid, circular in cross section; GCD up to 3.5 mm; theca imperforate but externally pitted in an alternating manner; costae independent, smooth ridges, twice the number of septa near calice; septa hexamerally arranged in 2-4 cycles; pali absent; columella styliform or lamellar.
Comparisons
Differs from Sphenotrochus in having externally pitted theca and a conical corallum.
Remarks
This genus and family was monographed by Cairns (1997), which included a phylogenetic analysis based on morphology. Forty-six species, only one of which is Recent, listed by Cairns (1997).
Distribution
- North America; Paleocene - Eocene
- Western Europe; Eocene
- North Africa; Eocene
- North America; Oligocene
- South America; Oligocene
- Western Pacific; Recent
Recent: 9-32 m FIGURES: Cairns, 1997: fig. 3b, 5i, 8c (ext. pits)This page has been in preparation since 02-Jul-2008 06:15
This version was contributed by Stephen D. Cairns on 18-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
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