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Pseudomalaxis
Taxonomy
Pseudomalaxis was named by Fischer (1850) [Sepkoski's age data: K Coni R]. It is extant.
It was assigned to Heterostrophia by Sepkoski (2002); and to Architectonicidae by Sohl (1960), Buonaiuto (1975), Adegoke (1977), Ladd (1982), Todd (2001) and Wienrich and Janssen (2007).
It was assigned to Heterostrophia by Sepkoski (2002); and to Architectonicidae by Sohl (1960), Buonaiuto (1975), Adegoke (1977), Ladd (1982), Todd (2001) and Wienrich and Janssen (2007).
Species
Species lacking formal opinion data
Synonyms
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Synonymy list
Year | Name and author |
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1850 | Pseudomalaxis Fischer |
1892 | Discohelix (Discosolis) Dall p. 231 |
1960 | Pseudomalaxis Sohl p. 65 |
1975 | Pseudomalaxis Buonaiuto p. 24 |
1977 | Pseudomalaxis Adegoke p. 114 |
1982 | Pseudomalaxis Ladd p. 30 |
2001 | Pseudomalaxis Todd |
2002 | Pseudomalaxis Sepkoski |
2007 | Pseudomalaxis Wienrich and Janssen p. 732 |
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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. Pseudomalaxis Fischer 1850
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Subg. †Pseudomalaxis (Ewekorolaxis) Adegoke 1977
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†Pseudomalaxis (Ewekorolaxis) ewekoroensis Adegoke 1977
Subg. †Pseudomalaxis (Nigerialaxis) Adegoke 1977
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†Pseudomalaxis (Nigerialaxis) africana Adegoke 1977
†Pseudomalaxis (Nigerialaxis) fayosei Adegoke 1977
†Pseudomalaxis (Nigerialaxis) kayodei Adegoke 1977
†Pseudomalaxis (Nigerialaxis) parisoti Furon 1948
Subg. †Pseudomalaxis (Platylaxis) Adegoke 1977
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†Pseudomalaxis (Platylaxis) nigeriensis Adegoke 1977
Subg. Pseudomalaxis (Pseudomalaxis) Fischer 1850
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†Pseudomalaxis (Pseudomalaxis) asculpturatus Maxwell 1966
†Pseudomalaxis (Pseudomalaxis) praemeridionalis Chapman 1912
†Pseudomalaxis caceresi Etayo-Serna 1979
†Pseudomalaxis pateriformis Stephenson 1955
†Pseudomalaxis punjabensis Eames 1952
Invalid names: Discosolis Dall 1892 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: f = family, c = class | |||||
Reference: Kiessling 2004 |
Age range
Maximum range based only on fossils: base of the Late/Upper Albian to the top of the Late/Upper Pliocene or 105.30000 to 2.58800 Ma
Minimum age of oldest fossil (stem group age): 99.6 Ma
Minimum age of oldest fossil (stem group age): 99.6 Ma
Collections (95 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Late/Upper Albian | Indian Ocean | P. sp. (181562) | |
Early/Lower Campanian - Middle Campanian | USA (Mississippi) | P. pateriformis (7456 7460 32140 32141) | |
Late/Upper Campanian | USA (Delaware) | P. sp. (6171) | |
Late/Upper Campanian | USA (Tennessee) | P. ripleyana, P. amplificata (88357) | |
Late/Upper Campanian | USA (Texas) | P. patens (7482 7580) | |
Late/Upper Campanian - Early/Lower Maastrichtian | USA (Tennessee) | P. pilsbryi, P. ripleyana, P. sp. (7515) | |
Maastrichtian | USA (Texas) | P. patens (205529) P. sp. (205541) | |
Maastrichtian | USA (Mississippi) | P. pilsbryi (7527 7600) | |
Maastrichtian | USA (Tennessee) | P. ripleyana (205445) | |
Early/Lower Maastrichtian | USA (Alabama) | P. pateriformis (4253) P. pilsbryi (4284) P. sp. (4248) | |
Early/Lower Maastrichtian | USA (Mississippi) | P. pilsbryi (7476 7586 7592 7609) P. pilsbryi, P. sp. (7590 7602) P. sp. (4101) | |
Late/Upper Maastrichtian | USA (South Carolina) | P. pilsbryi (4351) P. sp. (4342 4344) | |
Late/Upper Maastrichtian | USA (Maryland) | P. pateriformis (4364 4372) P. pilsbryi (4368 4369 4370) | |
Late/Upper Maastrichtian | USA (Missouri) | P. pateriformis (4385) | |
Late/Upper Maastrichtian | USA (Texas) | P. pateriformis (4435 4455) P. sp. (4411 4427 4431 4442 4487) | |
Late/Upper Maastrichtian | USA (Alabama) | P. pilsbryi (4237) | |
Late/Upper Maastrichtian | USA (Mississippi) | P. pateriformis (4127) | |
Danian | Belgium | P. carinicrenata (22931) | |
Danian | USA (Maryland) | P. ripleyana (83135) | |
Danian | Greenland | P. sp. (22943) | |
Danian | Colombia (Guajira) | P. caceresi (99141) | |
Danian | USA (Alabama) | P. sp. (83297) | |
Danian | Denmark | P. sp. (176994) | |
Selandian | Denmark | P. pingeli (35266 35267) P. pingeli, P. groenwalli (35265) | |
Selandian | Colombia | P. caceresi (180400) | |
Selandian | Nigeria | P. ewekoroensis, P. parisot, P. sp., P. fayosei, P. kayodei, P. africana, P. nigeriensis (7791) | |
Thanetian | Mexico | P. sp. (170996) | |
Ypresian | Pakistan | P. punjabensis (183845) | |
Ypresian | USA (Alabama) | P. verrilli (92269 92345) | |
Ypresian | USA (Texas) | P. acuta (89949) P. acuta, P. reklawensis (7788 84337) P. reklawensis (7789 83950 84325) | |
Lutetian | USA (Texas) | P. acuta, P. reklawensis (205533) P. plummerae (90651 205496) P. reklawensis (205223 205520 205521) P. sp. (205436) P. texana (90455) | |
Bartonian | USA (Texas) | P. acuta (205460 205461) P. plummerae (205430 205484) P. plummerae, P. rotella, P. texana (205422) P. plummerae, P. spp. (205480) P. sp. (205267) | |
Bartonian | USA (Mississippi) | P. rotella (2434 2444 2451) | |
Bartonian | USA (Alabama) | P. rotella (2421) P. rotella, P. tipa (90600) P. sp. (205489) | |
Late/Upper Eocene | Australia (South Australia) | P. asculpturatus (99241 99242 99243 99244 99245) | |
Early/Lower Miocene | Germany (North Rhein-Westfalia) | P. corniculum (62883) | |
Middle Miocene | Australia (Victoria) | P. praemeridionalis (72196) | |
Middle Miocene | Germany (North Rhein-Westfalia) | P. corniculum (61902) | |
Late/Upper Miocene | Indonesia | P. palembangensis, P. sp. 1 (70083) | |
Late/Upper Pliocene | Fiji | P. roddai (78066) |