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Mesophyllum
Taxonomy
Mesophyllum was named by Schlüter (1889) [Sepkoski's age data: D Emsi-l D Give-u Sepkoski's reference number: 422]. It is not extant.
It was assigned to Digonophyllinae by Hill (1956) and Merriam (1974); to Digonophyllidae by Hill (1981); and to Rugosa by Sepkoski (2002).
It was assigned to Digonophyllinae by Hill (1956) and Merriam (1974); to Digonophyllidae by Hill (1981); and to Rugosa by Sepkoski (2002).
Species
Species lacking formal opinion data
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.
G. †Mesophyllum Schlüter 1889
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Subg. †Mesophyllum (Arcophyllum) Markov 1926
Subg. †Mesophyllum (Atelophyllum) Wedekind 1925
Subg. †Mesophyllum (Dialytophyllum) Amanshauser 1925
Subg. †Mesophyllum (Hemicosmophyllum) Wedekind and Vollbrecht 1931
Subg. †Mesophyllum (Mesophyllum) Hill 1956
Subg. †Mesophyllum (Zonodigonophyllum) Vollbrecht 1926
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. W. Merriam 1974 | These Digonophyllinae have nonuni- formly discontinuous septa which become obsolete peripherally in a wide band of irregularly lonsdaleioid dissepiments, with or without localized groups of strip carinae. |