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Tonkinaria
Taxonomy
Tonkinaria was named by Merriam (1973) [Sepkoski's age data: D Gedi]. Its type is Tonkinaria simpsoni.
It was assigned to Kyphophyllidae by Merriam (1973); to Ptenophyllinae by Hill (1981); and to Rugosa by Sepkoski (2002).
It was assigned to Kyphophyllidae by Merriam (1973); to Ptenophyllinae by Hill (1981); and to Rugosa by Sepkoski (2002).
Species
T. simpsoni (type species)
Synonymy list
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. W. Merriam 1973 | Solitary and loosely phaceloid rugose corals with flaring trumpet-shaped calice, ceratoid to turbinate corallites, and narrow tabularium. Wall a narrow stereozone; septa thin, major septa reaching or slightly withdrawn from axis. Some dissepiments large, elongate, and steeply inclined. Multiplication by three or more peripheral calice offsets. |