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Tendagurodon janenschi
Taxonomy
Tendagurodon janenschi was named by Heinrich (1998). Its type specimen is MB.Ma.46911, a tooth (?lower cheek tooth), and it is a 3D body fossil. Its type locality is Tendaguru quarry Ig, Kindope, which is in a Kimmeridgian channel lag siltstone in the Tendaguru Formation of Tanzania. It is the type species of Tendagurodon.
Synonymy list
| Year | Name and author |
|---|---|
| 1998 | Tendagurodon janenschi Heinrich pp. 272-274 figs. 1-2 |
| 2004 | Tendagurodon janenschi Kielan-Jaworowska et al. pp. 219, 240 |
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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.
†Tendagurodon janenschi Heinrich 1998
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. -D. Heinrich 1998 | Known only from a double-rooted cheek tooth, tentatively identified as right lower molar. Tooth crown linguolabially compressed, elongated, without mesial indentation, with three main cusps (a, b, c), and two basal cusps (d, e). The cusps are arranged mesiodistally, and they are closer to the lingual margin of the tooth crown than to the labial. The cusp formula reads a > c > b > d > e. The principal cusp a is substantially larger than the main cusps b and c. Main cusp c is situated at a higher level than b. Except for very faintly developed anterolingual and anterolabial cingula, which are located below the cusps b and e, well-defined cingula are lacking. The cross sections of the roots are anteroposteriorly elongated. |
Measurements
No measurements are available
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| Source: subf = subfamily, c = class, subp = subphylum | |||||
| References: Hopson 1973, Carroll 1988, Kielan-Jaworowska et al. 2004, Hendy et al. 2009 | |||||
Age range: Late/Upper Kimmeridgian or 152.21000 to 149.20000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Kimmeridgian | Tanzania (Lindi) | Tendagurodon janenschi (type locality: 47146) |