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Maiopatagium
Taxonomy
Maiopatagium was named by Meng et al. (2017). Its type is Maiopatagium furculiferum.
It was assigned to Eleutherodontidae by Meng et al. (2017).
It was assigned to Eleutherodontidae by Meng et al. (2017).
Species
M. furculiferum (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2017 | Maiopatagium Meng et al. p. 291 figs. Fig. 1-2 |
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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 | |
|---|---|---|
| Q.-J. Meng et al. 2017 | Dental formula I1, P2, M2. Similar to all eleutherodonts in having a reduced post-incisor tooth count, and in having four upper premolars and molars (Fig. 2). Similar to eleutherodontids for which the skull is preserved in showing a down-turned rostrum at the long post-incisor diastema, and in having a subtemporal angle on the maxilla near the maxillary–jugal junction. Of all eleutherodonts, M. furculiferum is most similar to Shenshou lui in having a diastema between the penultimate and ultimate upper premolars, upper molars with a tight coalescence of cusps on the lingual cusp row, which becomes crest- like, and a straight and median occlusal furrow open at both ends of P4–M2. In these features it differs from eleutherodontids16,25 that lack the penultimate–ultimate premolar diastema, and show distinc- tive cusps on the lingual cusp row and a fusiform median occlusal basin closed at mesial and distal ends of upper molars. The lingual cusp row of M. furculiferum is crest-like and lacks the weak cusp division on the lingual cusp row of S. lui16. It has a single cusp on its upper incisor while the upper incisor is bicuspid in S. lui16. M1 and M2 of Maiopatagium are only 70% in length of the same teeth in the Shenshou lui16. A noteworthy skeletal feature of eleutherodonts is the Y-shaped clavicle–interclavicle (Fig. 3, Extended Data Figs 4–6), which is distinct from the T-shaped clavicle–interclavicles of other mammaliaforms. Extended diagnosis and taxonomic notes are provided in the Supplementary Information. |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Carroll 1988, Luo et al. 2003, Hopson 1973, Hendy et al. 2009 | |||||