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Thanatosdrakon
Taxonomy
Thanatosdrakon was named by Ortiz David et al. (2022). Its type is Thanatosdrakon amaru.
It was assigned to Quetzalcoatlinae by Ortiz David et al. (2022).
It was assigned to Quetzalcoatlinae by Ortiz David et al. (2022).
Species
T. amaru (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2022 | Thanatosdrakon Ortiz David 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. †Thanatosdrakon Ortiz David et al. 2022
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†Thanatosdrakon amaru Ortiz David et al. 2022
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. D. Ortiz David et al. 2022 | Large azhdarchid characterized by the following unique combination of characters (autapomorphies marked with an asterisk): (1) posterior cervical vertebra with pneumatic foramina lateral to the neural canal, which are four times greater than the neural canal and have an inverted drop-shape*; (2) notarial vertebrae with developed neural arches, being the height from the neural canal to the transverse processes morethan twice the height of the neural spine*; (3) scapulocoracoid with robust and well-developed coracoidalis and scapularis processes; humerus with: (4) deltopectoral crest with a mostly straight distal border and placed more distally on the shaft, (5) two foramina on the distal surface separated by a ridge; ulna with a: (6) a massive olecranon representing more than 60% of the proximal width*, (7) a remarkable olecranon ridge*; (8) proximal syncarpal with hexagonal shape in proximal view with well-developed flexor tendon and posterodistal processes; (9) wing phalanges 2 and 3 with a groove running along the diaphysis on the ventral side and suboval cross-section (not T-shaped); pelvis with: (10) an anteroposteriorly oval-shaped acetabulum, (11) prominent ‘T-shaped’ postacetabular process, with well-developed anterior and posterior expansions and slightly straight dorsal border; femur with: (12) a massive, robust, elevated greater trochanter extending above the base of the femoral head, (13) greater trochanter slightly laterally curved, with a distinct anteroposterior ridge that runs medially through |