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Ptychopariacea
Taxonomy
Ptychopariacea was named by Matthew (1887).
It was corrected as Ptychoparioidea by Landing et al. (2008) and 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) and Pour and Popov (2009).
It was corrected as Ptychoparioidea by Landing et al. (2008) and 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) and 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. †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
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
Measurements
No measurements are available
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| Source: subo = suborder, c = class | |||||
| References: Aberhan et al. 2004, Fortey and Owens 1999 | |||||
Collections (178 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cambrian | Argentina (San Juan) | Hadrocephalites sp., Mexicella mexicana, Eokochaspis nodosa (200106) | |
| Dyeran | USA (Nevada) | Eokochaspis metalaspis (9214 9238 10590) | |
| Delamaran | USA (Utah) | Kochina vestita (10533) | |
| Delamaran | USA (Nevada and California) | Mexicella sp. (201) | |
| Delamaran | USA (Montana) | Olenopsis americanus (225273) | |
| Delamaran | USA (Nevada) | Eokochaspis granulosa, Eokochaspis nodosa, Eokochaspis piochensis (10587) Eokochaspis longspina (69399 69401 69403) Eokochaspis metalaspis (9220) Eokochaspis nodosa (69268 69269 69270 69271 69272 69273 69274 69275 69276 69277) Eokochaspis nodosa, Eokochaspis delamarensis (69267) Eokochaspis piochensis (69278 69279 69280) Eoptychoparia piochensis (10570 205001 205010) Hadrocephalites rhytidodes (225271) Kochina sp. (205002) Mexicella grandoculus (149606) Mexicella granulata (9412) Mexicella mexicana (9411 9435) Mexicella robusta (69456) Schistometopus sp. (149562) | |
| Delamaran | USA (California) | Eoptychoparia piochensis (205005) Kochina sp. (69516 205003) Mexicella grandoculus (149619 149641 149644) Mexicella mexicana (149643 149652 149653) Mexicella n. sp., Mexicella mexicana (226840) Mexicella robusta (69498) Mexicella stator (149615) Schistometopus sp. (149617) Syspacephalus obscurus (149618 149640) | |
| Delamaran | Canada (Alberta) | Crepicephalus cecinna (225265) Kochina americana, Mexicella stator (225276) Kochina macrops (225275) Mexicella stator (225277) | |
| Delamaran | Canada (British Columbia) | Crepicephalus cecinna (225278) Schistometopus convexus (225263 225264) | |
| Delamaran - Menevian | Mexico | Mexicella mexicana (10687) | |
| Solvan | USA (Nevada) | Eokochaspis delamarensis (9248 9255 9258 9260) Eokochaspis longspina (9256) Eokochaspis longspina, Mexicella antelopea (9245 9249) Eokochaspis nodosa (9215 9217 9243 9246 9252 9253 9257 9259) Eokochaspis piochensis (9216 9233 9240 9244 9247 9254) Mexicella granulata (9413 9414 9420 9440 9441 9453 9454 9455 9459 9465 9466 9467 9468 9474) Mexicella mexicana (9416 9423 9425 9433 9438 9442 9443 9444 9445 9446 9447 9448 9449 9450 9451 9456 9457 9460 9461 9462 9472 9473) Mexicella mexicana, Eokochaspis nodosa (9421) Mexicella mexicana, Mexicella stator (9424 9429 9430 9432 9469) Mexicella mexicana, Mexicella stator, Mexicella granulata (9452) Mexicella robusta (9218 9219 9234 9235 9236 9242 9251 9261) Mexicella stator (9426 9434) | |
| Solvan | Canada (British Columbia) | Schistometopus convexus (56704 56717 56718 56720) Schistometopus minor, Schistometopus convexus (56703 56721) | |
| Solvan - St Davids | USA (Nevada) | Eokochaspis nodosa (9239) | |
| Middle Cambrian | USA (Idaho) | Schistometopus typicalis (127485) | |
| St Davids | USA (Nevada) | Eokochaspis cabinensis (50106 50322 50325 50333 50335) Hadrocephalites lyndonensis (50097 50301 50327) Hadrocephalites rhytidodes (50095 50100 50114 50293 50326 50330 50331 50338) Hadrocephalites rhytidodes, Hadrocephalites lyndonensis (50094) Hadrocephalites sp. (50115 50336) Hadrocephalites sp. B (50098 50101 50323) Mexicella mexicana (50298) Mexicella mexicana, Eokochaspis cabinensis (50102 50103) Mexicella robusta (50093 50109 50329 50332) | |
| St Davids | USA (Vermont) | Kochina sp. indet., Mexicella stator (78913) | |
| Menevian | USA (Idaho) | Kochina vestita, Kochina wasatchensis (50208) | |
| Marjumian | USA (Arizona) | Kochina angustata (211) | |
| Marjumian | Canada (Newfoundland) | Kochina arctica (195765) | |
| Merioneth | Canada (British Columbia) | Kochina sp., Mexicella sp. (199) | |
| Merioneth | USA (Utah) | Kochina sp. (206) | |
| Merioneth | USA (Idaho) | Kochina sp. (198) |