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Ptychopariacea
Taxonomy
Ptychopariacea was named by Matthew (1887).
It was corrected as Ptychoparioidea by Landing et al. (2008), Pour and Popov (2009).
It was assigned to Ptychopariida by Landing et al. (2008); and to Ptychopariina by Sundberg and McCollum (2000), Sundberg and McCollum (2003), Pour and Popov (2009).
It was corrected as Ptychoparioidea by Landing et al. (2008), Pour and Popov (2009).
It was assigned to Ptychopariida by Landing et al. (2008); and to Ptychopariina by Sundberg and McCollum (2000), Sundberg and McCollum (2003), Pour and Popov (2009).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1887 | Ptychopariacea Matthew |
| 2000 | Ptychopariacea Sundberg and McCollum p. 607 |
| 2003 | Ptychopariacea Sundberg and McCollum p. 345 |
| 2008 | Ptychoparioidea Landing et al. p. 898 |
| 2009 | Ptychoparioidea Pour and Popov |
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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.
Superfm. †Ptychopariacea Matthew 1887
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G. †Elrathina Resser 1937
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†Elrathina antiqua Palmer and Halley 1979
†Elrathina cordillerae Rominger 1887
†Elrathina marginalis Rasetti 1951
†Elrathina offula Resser 1939
†Elrathina parallela Rasetti 1951
†Elrathina wheelera Sundberg 1994
G. †Eokochaspis Sundberg and McCollum 2000
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†Eokochaspis cabinensis Sundberg and McCollum 2003
†Eokochaspis delamarensis Sundberg and McCollum 2000
†Eokochaspis longspina Sundberg and McCollum 2000
†Eokochaspis metalaspis Sundberg and McCollum 2000
†Eokochaspis nodosa Sundberg and McCollum 2000
†Eokochaspis piochensis Palmer and Halley 1979
G. †Hadrocephalites Sundberg and McCollum 2002
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†Hadrocephalites carina Walcott 1917
†Hadrocephalites cecinna Walcott 1917
†Hadrocephalites convexus Rasetti 1951
†Hadrocephalites lyndonensis Sundberg and McCollum 2002
†Hadrocephalites rhytidodes Sundberg and McCollum 2002
Invalid names: Schistometopus Resser 1938 [nomen dubium]
G. †Kochina Resser 1935
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†Kochina americana Walcott 1912
†Kochina bosworthensis Resser 1935
†Kochina macrops Rasetti 1951
†Kochina wasatchensis Resser 1939
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