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Mexicella
Taxonomy
Mexicella was named by Lochman (1948) [Sepkoski's age data: Cm lMid]. Its type is Mexicella mexicana.
It was assigned to Ptychopariacea by Sundberg and McCollum (2000); to Ptychopariidae by Jell and Adrain (2002); and to Ptychopariida by Palmer and Halley (1979), Eddy and McCollum (1998), Sepkoski (2002).
It was assigned to Ptychopariacea by Sundberg and McCollum (2000); to Ptychopariidae by Jell and Adrain (2002); and to Ptychopariida by Palmer and Halley (1979), Eddy and McCollum (1998), Sepkoski (2002).
Species
M. antelopea, M. grandoculus, M. granulata, M. mexicana (type species), M. obscurus, M. robusta, M. stator
Synonymy list
| Year | Name and author |
|---|---|
| 1948 | Mexicella Lochman pp. 456 - 457 |
| 1979 | Mexicella Palmer and Halley pp. 108 - 109 |
| 1998 | Mexicella Eddy and McCollum p. 879 |
| 2000 | Mexicella Sundberg and McCollum p. 622 |
| 2002 | Mexicella Jell and Adrain p. 406 |
| 2002 | Mexicella Sepkoski |
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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. †Mexicella Lochman 1948
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†Mexicella antelopea Sundberg and McCollum 2000
†Mexicella grandoculus Palmer and Halley 1979
†Mexicella granulata Eddy and McCollum 1998
†Mexicella mexicana Lochman 1948
†Mexicella obscurus Palmer and Halley 1979
†Mexicella robusta Sundberg and McCollum 2000
†Mexicella stator Walcott 1916
Diagnosis
No diagnoses are available