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Trigonodus
Taxonomy
Trigonodus was named by Alberti (1864) [Sepkoski's age data: Tr m Tr Nori-u Sepkoski's reference number: 94].
It was assigned to Pachycardiidae by Hayami (1975); to Unionoida by Sepkoski (2002); and to Trigonodidae by Bouchet et al. (2010) and Hautmann et al. (2011).
It was assigned to Pachycardiidae by Hayami (1975); to Unionoida by Sepkoski (2002); and to Trigonodidae by Bouchet et al. (2010) and Hautmann et al. (2011).
Species
T. abdominalis, T. bittneri, T. brevidens, T. carniolicus, T. costatus, T. dieneri, T. extraordinarius, T. intermedius, T. marmolatae, T. minor, T. orientalis, T. postrablensis, T. praeco, T. problematicus, T. productus, T. rablensis, T. ramovsi, T. sandbergeri, T. serianus, T. sichuanensis, T. subrhombus, T. xiabolangensis, T. yunnanensis
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1864 | Trigonodus Alberti |
| 1975 | Trigonodus Hayami |
| 2002 | Trigonodus Sepkoski |
| 2010 | Trigonodus Bouchet et al. |
| 2011 | Trigonodus Hautmann et al. p. 79 |
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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. †Trigonodus Alberti 1864
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†Trigonodus abdominalis Jelen 1989
†Trigonodus bittneri Waagen 1907
†Trigonodus brevidens Waagen 1907
†Trigonodus carniolicus Bittner 1907
†Trigonodus costatus Wöhrmann 1892
†Trigonodus dieneri Waagen 1907
†Trigonodus extraordinarius Jelen 1989
†Trigonodus intermedius Waagen 1907
†Trigonodus marmolatae Salomon 1895
†Trigonodus minor Newberry and Worthen 1866
†Trigonodus orientalis Bittner 1899
†Trigonodus postrablensis Frech 1912
†Trigonodus praeco Philippi 1898
†Trigonodus problematicus Klipstein 1843
†Trigonodus productus Whiteaves 1889
†Trigonodus rablensis Gredler 1862
†Trigonodus ramovsi Jelen 1989
†Trigonodus sandbergeri von Alberti 1864
†Trigonodus serianus Parona 1889
†Trigonodus sichuanensis Gu 1976
†Trigonodus subrhombus Guo 1985
†Trigonodus xiabolangensis Yin and Grant-Mackie 2005
†Trigonodus yunnanensis Guo 1985
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 11.9 | 4.68 | 19.8 | 15.2 | 6.89 | |
| valve height | 9 | 10.9 | 6.50 | 19.9 | 11.6 | 4.08 |
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| Source: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Age range: base of the Arenig to the top of the Late/Upper Triassic or 478.60000 to 201.40000 Ma
Collections (91 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Arenig | Australia (Queensland) | T. sp. (157069 157073) | |
| Early/Lower Triassic | Russian Federation (Primorsky Krai) | T. orientalis (202918) | |
| Smithian | Russian Federation | T. orientalis (90220) | |
| Spathian | USA (Utah) | T. orientalis (63007 63008 63016 63145 122198 141586 141595) T. orientalis, T. sandbergeri (62970) T. sandbergeri (141588) T. sandbergi (122200) T. sp., T. sp. a (62974) | |
| Anisian | Bosnia and Herzegovina | T. sp. (206720 206722) | |
| Anisian | China (Yunnan) | T. subrhombus, T. yunnanensis (98536) | |
| Anisian | Germany (Baden-Württemberg) | T. praeco (206384) | |
| Anisian | Germany (Bayern) | T. sandbergeri (129615) | |
| Pelsonian | Vietnam | T. tonkinensis (107703 107706) T. tonkinensis, T. trapezoidalis (107707) | |
| Pelsonian | Israel (Negev) | T. tenuidentatus (214648) | |
| Anisian - Ladinian | Vietnam | T. tonkinensis (99738 99739 99740 99741 99743 99746) T. trapezoidalis (99745) T. trapezoidalis, T. tonkinensis (99744) T. zhamoidai, T. keuperinus, T. trapezoidalis, T. tonkinensis (99742) | |
| Middle Triassic | Italy (Trento) | T. marmolatae (202272) | |
| Ladinian | Laos | T. trapezoidalis, T. tonkinensis (44799) | |
| Ladinian | Russian Federation (Kalmykia) | T. hormischuchi (46534) | |
| Ladinian | Italy | T. minutus, T. rablensis (202041) T. rablensis (202040) T. rablensis, T. costatus (201999 202000 202001 202028 202029 202030 202031 202032 202037 202038) | |
| Ladinian | Vietnam | T. sandbergi, T. trapezoidalis (44758) T. trapezoidalis, T. sandbergeri (44767 44779) | |
| Ladinian | Slovakia | T. sp. (23867) | |
| Ladinian | Thailand | T. costatus (44811) T. problematicus (44812) | |
| Longobardian | Italy (Trentino) | T. carniolicus, T. bittneri, T. rablensis, T. problematicus, T. costatus, T. intermedius, T. dieneri, T. brevidens (44953) | |
| Carnian | USA (Alaska) | T. sp. (112343) | |
| Carnian | Germany | T. grandis, T. wuertembergicus, T. sp., T. pygmaeus, T. singularis (34416) | |
| Carnian | Slovenia | T. sp., T. carniolicus, T. bittneri, T. problematicus, T. abdominalis (85149) | |
| Carnian | Japan (Tokushima) | T. hashimotoi (40478) | |
| Carnian | Italy (South Tyrol) | T. minutus, T. rablensis, T. costatus (205157) T. rablensis, T. costatus (205147) | |
| Carnian | Hungary | T. costatus (70797) T. postrablensis (70858) | |
| Carnian - Norian | China (Qinghai) | T. sp., T. carniolicus, T. bittneri (59646) | |
| Late/Upper Triassic | Indonesia | T. sp. (201863) | |
| Julian | Italy | T. sp. (69649) | |
| Julian | Italy (Lombardy) | T. carniolicus (85241) T. carniolicus, T. bittneri, T. problematicus (85240) T. serianus (85243) | |
| Julian | Slovenia | T. abdominalis (57105 160953) T. bittneri, T. sandbergeri, T. problematicus (160957 160958) T. bittneri, T. sandbergeri, T. problematicus, T. abdominalis (160960) T. bittneri, T. serianus, T. problematicus (57099) T. carniolicus, T. bittneri, T. problematicus (57097 57098) T. carniolicus, T. bittneri, T. rablensis, T. problematicus, T. extraordinarius (57109) T. carniolicus, T. bittneri, T. sandbergeri, T. problematicus, T. abdominalis (160959 160961) T. carniolicus, T. bittneri, T. sandbergeri, T. problematicus, T. ramovsi (57108) T. carniolicus, T. bittneri, T. sandbergeri, T. problematicus, T. ramovsi, T. abdominalis, T. extraordinarius (57102) T. carniolicus, T. bittneri, T. sandbergeri, T. rablensis, T. serianus, T. problematicus, T. ramovsi (160956) T. carniolicus, T. bittneri, T. sandbergeri, T. rablensis, T. serianus, T. problematicus, T. ramovsi, T. abdominalis, T. extraordinarius (160963) T. carniolicus, T. ramovsi (57103) T. ramovsi (160962) T. sandbergeri (57106) T. sandbergeri, T. abdominalis (57107) T. sandbergeri, T. rablensis, T. problematicus (57104) | |
| Norian | Peru | T. cordilleranus (71785) | |
| Rhaetian | China (Tibet) | T. xiabolangensis (201833) |