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Neotamandua borealis
Discussion
Type: UCMP 39847. Incomplete manus, pes and fragmentary post-cranial elements of a mature individual.
Taxonomy
Neotamandua borealis was named by Hirschfeld (1976). It is considered to be a form taxon. Its type specimen is UCMP 39847, a set of limb elements (Radius proximal end), and it is a 3D body fossil.
Synonymy list
| Year | Name and author |
|---|---|
| 1976 | Neotamandua borealis Hirschfeld |
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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.
†Neotamandua borealis Hirschfeld 1976
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. E. Hirschfeld 1976 | Intermediate in size between Tamandua and Myrmecophaga, metacarpal III
short and robust, pisiform broad and narrow, calcaneum with groove for peroneous longus, astragalus with fossa between external and internal calcaneal facets, and between internal calcaneal and accessory facets, anterior caudal vertebrae with decided slant to centrum, posterior caudal vertebrae long and rounded. |
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| Astragalus diameter | 6 | 19.6 | 14.5 | 27.3 | 19.2 | 5.65 | |
| Calcaneum height | 2 | 14.3 | 14.0 | 14.6 | 14.3 | 0.424 | |
| Cuneiform height | 1 | 11.0 | - | - | - | - | |
| Metacarpal III height | 1 | 10.5 | - | - | - | - | |
| Metacarpal III proximal end height | 1 | 11.0 | - | - | - | - | |
| Metacarpal IIII Carina height | 1 | 13.8 | - | - | - | - | |
| Metatarsal II height | 3 | 7.47 | 5.00 | 9.70 | 8.60 | 2.46 | |
| Metatarsal IV height | 2 | 9.55 | 9.30 | 9.80 | 9.55 | 0.354 | |
| Metatarsal V height | 1 | 7.80 | - | - | - | - | |
| Navicular diameter | 1 | 16.6 | - | - | - | - | |
| Phalanx I digit III height | 2 | 13.0 | 12.3 | 13.8 | 13.1 | 1.06 | |
| Phalanx I digit III proximal end height | 2 | 8.16 | 6.80 | 9.80 | 8.30 | 2.12 | |
| Phalanx II digit II height | 3 | 9.65 | 7.00 | 12.0 | 10.7 | 2.59 | |
| Pisiform height | 1 | 7.00 | - | - | - | - |
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| Source: s = species, subc = subclass, c = class, subp = subphylum | |||||
| References: Lillegraven 1979, Hirschfeld 1976, Hendy et al. 2009, Carroll 1988, Nowak 1991 | |||||