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Microbiotherium
Taxonomy
Microbiotherium was named by Ameghino (1887). It is not extant.
It was assigned to Microbiotheridae by Ameghino (1894); to Microbiotheria by Goin et al. (2009); and to Microbiotheriidae by Marshall (1982), McKenna and Bell (1997), Goin et al. (2006), Oliveira and Goin (2011) and Abello et al. (2012).
It was assigned to Microbiotheridae by Ameghino (1894); to Microbiotheria by Goin et al. (2009); and to Microbiotheriidae by Marshall (1982), McKenna and Bell (1997), Goin et al. (2006), Oliveira and Goin (2011) and Abello et al. (2012).
Species
M. acicula (syn. Prodidelphys obtusa, Prodidelphys pavita), M. gallegosense, M. patagonicum (syn. Stylognathus diprotodontoides, Hadrorhynchus conspicuus), M. praecursor, M. tehuelchum (syn. Eodidelphys fortis, Phonocdromus patagonicus, Halmarhiphus didelpoides, M. forticulum, Hadrorhynchus tortor, Eodidelphys famula, Hadrorhynchus torvus)
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1887 | Microbiotherium Ameghino |
| 1891 | Stylognathus Ameghino p. 23 |
| 1891 | Eodidelphys Ameghino p. 24 |
| 1891 | Prodidelphys Ameghino p. 24 |
| 1891 | Hadrorhynchus Ameghino p. 25 |
| 1894 | Eodidelphys Ameghino p. 105 |
| 1894 | Microbiotherium Ameghino p. 105 |
| 1894 | Prodidelphys Ameghino p. 105 |
| 1894 | Stylognathus Ameghino p. 105 |
| 1894 | Hadrorhynchus Ameghino p. 106 |
| 1898 | Proteodidelphys Ameghino p. 74 |
| 1929 | Proteodidelphys Simpson pp. 130-131 figs. 2-5 |
| 1982 | Microbiotherium Marshall |
| 1997 | Microbiotherium McKenna and Bell |
| 2006 | Microbiotherium Goin et al. |
| 2009 | Microbiotherium Goin et al. |
| 2011 | Microbiotherium Oliveira and Goin |
| 2012 | Microbiotherium Abello 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. †Microbiotherium Ameghino 1887
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†Microbiotherium acicula Ameghino 1891
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Invalid names: Prodidelphys obtusa Ameghino 1891 [synonym], Prodidelphys pavita Ameghino 1891 [synonym]
†Microbiotherium gallegosense Sinclair 1906
†Microbiotherium patagonicum Ameghino 1887
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Invalid names: Hadrorhynchus conspicuus Ameghino 1891 [synonym], Stylognathus diprotodontoides Ameghino 1891 [synonym]
†Microbiotherium praecursor Ameghino 1898
†Microbiotherium tehuelchum Ameghino 1887
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Invalid names: Eodidelphys famula Ameghino 1891 [synonym], Eodidelphys fortis Ameghino 1891 [synonym], Hadrorhynchus tortor Ameghino 1891 [synonym], Hadrorhynchus torvus Ameghino 1891 [synonym], Halmarhiphus didelpoides Ameghino 1891 [synonym], Microbiotherium forticulum Ameghino 1891 [synonym], Phonocdromus patagonicus Ameghino 1894 [synonym]
Invalid names: Eodidelphys Ameghino 1891 [synonym], Hadrorhynchus Ameghino 1891 [synonym], Prodidelphys Ameghino 1891 [synonym], Proteodidelphys Ameghino 1898 [synonym], Stylognathus Ameghino 1891 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Nowak 1991, Lillegraven 1979, Hendy et al. 2009, Hopson 1973, Clemens 1979 | |||||
Age range: base of the Tinguirirican to the top of the Burdigalian or 36.00000 to 15.97000 Ma
Collections (20 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tinguirirican | Argentina (Chubut) | M. sp. (176200) | |
| Aquitanian | Argentina | M. patagonicum (206766) | |
| Early/Lower Miocene | Argentina (Chubut) | Proteodidelphys praecursor (176669) | |
| Colhuehuapian | Argentina (Chubut) | M. sp. (141368) | |
| Burdigalian | Argentina (Santa Cruz) | M. tehuelchum (59321) M. tehuelchum, M. gallegosense (59320) | |
| Santacrucian | Argentina (Santa Cruz) | M. patagonicum (176575 176594 176601) M. tehuelchum (27313 142533 176566 176571 176590 210638) M. tehuelchum, M. acicula, M. gallegosense (87314) M. tehuelchum, M. patagonicum (176565 176593) Phonocdromus patagonicus, Halmarhiphus didelpoides, M. tehuelchum, M. patagonicum, M. forticulum, Stylognathus diprotodontoides, Eodidelphys fortis, Eodidelphys famula, Prodidelphys acicula, Prodidelphys pavita, Prodidelphys obtusa, Hadrorhynchus tortor, Hadrorhynchus torvus, Hadrorhynchus conspicuus (176570) | |
| Friasian | Chile (Aisén) | M. tehuelchum (139845) |