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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Kupoupou
Taxonomy
Kupoupou was named by Blokland et al. (2019). Its type is Kupoupou stilwelli.
It was assigned to Sphenisciformes by Blokland et al. (2019).
It was assigned to Sphenisciformes by Blokland et al. (2019).
Species
K. stilwelli (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2019 | Kupoupou Blokland 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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. C. Blokland et al. 2019 | Kupoupou, n. gen. is referred to Sphenisciformes because it shares the synapomorphy of having flattened long bones of the forewing/flip-
per. Kupoupou, n. gen. is characterised by the combination of the following osteological apomorphies: a bifurcated processus transversus of the axis with a dorsally protruding torus dorsalis; the processus acrocoracoideus has a rounded and protruding omal crista acrocoracoidea of the coracoid, the insertion for ligamenti acrocoraco-pro-coracoidale on the facies articularis clavicularis is weakly hooked with a rounded facies apicalis, a weakly defined tuberculum for the insertion of plica synovialis coracoidea, joined by a low ridge to the impressio ligamenti acrocoraco-acromiale, the lat- ter of which is separated by the impressio ligamenti acrocoraco-procoracoidale by a groove; a well-defined labrum internum of the coracoid that is compressed in the sternal-omal direction; the distal margin of the crista bicipitalis on the humerus is nearly perpendicular to the long axis of the shaft; the distal caudal border of the olecranon of the ulna is distinctly angled, with a marked bony caudal protuberance; a dorsocaudally situated sub-triangular insertion scar for the musculus supinator on the proximal radius; a distinct caudally projecting tuberculum aponeurosis ventralis from the ventral caudal margin of the distal radius and an associated prominent ulnar depression; a proximally directed process on the phalanx III-1; a marked lat- erally protruding epicondylus lateralis on the femur; the sulcus for the tendon to the muscle flexor hallu- cis longus is bounded by medial and lateral hypotarsal crests of distinct subequal plantar projection on the tarsometatarsus; a strongly plantar projecting flange on the lateral rim of trochlea metatarsi IV. |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Marsh 1875, Benton 1983, Bush and Bambach 2015 | |||||
Age range: base of the Early/Lower Paleocene to the top of the Middle Paleocene or 66.00000 to 59.24000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Paleocene - Middle Paleocene | New Zealand (Chatham Islands Territory) | K. stilwelli (207006) |