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Towapteria
Taxonomy
Towapteria was named by Nakazawa and Newell (1968) [Sepkoski's age data: P Sakm Tr Indu Sepkoski's reference number: 157]. Its type is Towapteria nipponica.
It was assigned to Bakevellidae by Fang (1987); to Pterioida by Sepkoski (2002); and to Bakevelliidae by Waller and Stanley (2005) and Ros-Franch et al. (2014).
It was assigned to Bakevellidae by Fang (1987); to Pterioida by Sepkoski (2002); and to Bakevelliidae by Waller and Stanley (2005) and Ros-Franch et al. (2014).
Species
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1968 | Towapteria Nakazawa and Newell p. 58 |
| 1980 | Towapteria radiocostata Xu p. 8 |
| 1980 | Towapteria equicosta Xu and Chang p. 10 |
| 1980 | Towapteria minima Xu and Chang p. 10 |
| 1987 | Towapteria Fang p. 370 |
| 2002 | Towapteria Sepkoski |
| 2005 | Towapteria Waller and Stanley |
| 2014 | Towapteria Ros-Franch et al. |
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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. †Towapteria Nakazawa and Newell 1968
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†Towapteria guangxingensis Liang 1980
†Towapteria guizhouensis Yin and Gan 1978
†Towapteria nipponica Nakazawa and Newell 1968
†Towapteria peracuta Stache 1878
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Invalid names: Avicula (Oxytoma) silveri Gortani 1906 [synonym], Avicula (Oxytoma) waehneri Kittl 1903 [synonym]
†Towapteria scythica Wirth 1936
Invalid names: Towapteria equicosta Xu and Chang 1980 [nomen nudum], Towapteria minima Xu and Chang 1980 [nomen nudum], Towapteria radiocostata Xu 1980 [nomen nudum]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| height | 7 | 16.5 | 13.4 | 18.2 | 17.3 | 1.74 | |
| shell height | 2 | 4.24 | 3.27 | 5.50 | 4.39 | 1.57 | |
| valve height | 20 | 5.39 | 1.27 | 9.00 | 5.97 | 2.01 |
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| Source: f = family, superf = superfamily, o = order, c = class | |||||
| References: Sanchez Roig 1926, Aberhan et al. 2004, Kiessling 2004 | |||||
Age range: base of the Artinskian to the top of the Early/Lower Triassic or 290.10000 to 247.20000 Ma
Collections (113 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Artinskian | Japan (Iwate) | T. nipponica (182561) | |
| Wordian | China (Nei Mongol) | T. guangxingensis (111767) | |
| Wordian | Japan | T. nipponica (114492 114493 114533) | |
| Wuchiapingian | China (Guizhou) | T. guizhouensis (197495) T. nipponica (112106) T. radiocostata (112005) | |
| Wuchiapingian | China (Guangxi) | T. sp. (50027) | |
| Wuchiapingian | China (Hunan) | T. nipponica (95695) | |
| Wuchiapingian | China (Hubei) | T. sp. (123593) | |
| Lopingian | Bosnia and Herzegovina | Avicula waehneri (206739 206741) | |
| Lopingian | China (Fujian) | T. nipponica (102120) | |
| Wuchiapingian - Changhsingian | China (Guangxi) | T. nipponica (105453) | |
| Changhsingian | China (Guizhou) | T. equicosta (112013 112087 112089) T. equicosta, T. minima (111983) T. minima (112010) T. sp. (108546) T. sp., T. equicosta, T. minima (108544) | |
| Changhsingian | Japan | T. nipponica (114491) | |
| Changhsingian | China (Chongqing) | T. guizhouensis (94970) T. scythica (94989) | |
| Changhsingian | Italy | T. peracuta (230020 230024 230025 230029 230030 230031 230037 230040 230041 230048 230053 230054) T. scythica (44450) T. sp. (74939 87192 101917 101918 101919 101920) | |
| Changhsingian | China (Zhejiang) | Oxytoma scythicum (60533) T. scythica (105215) T. sp. (105212 105214) | |
| Changhsingian | China (Fujian) | T. intermedia (111746) T. nipponica (95481) | |
| Induan | China (Guangxi) | T. guizhouensis (121141) | |
| Induan | China (Sichuan) | T. scythicum (123723) | |
| Induan | China (Zhejiang) | T. scythica (201714) | |
| Early/Lower Triassic | Vietnam (Ha Giang) | T. scythica (201713) | |
| Griesbachian | China (Sichuan) | T. scythica (48946 48948 89361 89362 95607 95609) T. scythicum (117506) T. sp. (48945) | |
| Griesbachian | China (Guangxi) | T. scythica (121128 187266 187267 187275 187276 187277 187278 187279 187280 187281 187282 187283) T. scythicum (117512 149202) T. sp., T. scythica (121129 121130) | |
| Griesbachian | China (Hubei) | T. scythicum (149224 149225) | |
| Griesbachian | China (Chongqing) | T. scythicum (148537 149147 149148) | |
| Griesbachian | Italy | T. scythica (88658 165012 165013 165102 165107) T. sp. (74944) | |
| Griesbachian | China (Guizhou) | T. scythica (112112 157352 200983 200984 200987 200988 200989 200990 200991 200994 200997 201000 201001 201002 201004 201007 201013 205994) T. scythica, Pteria ussurica (121324) T. sp., T. scythica (200982 200985 201003) | |
| Griesbachian | China (Zhejiang) | T. scythica (105221) | |
| Dienerian | China (Chongqing) | Oxytoma scythicum (149146) |