Mustersan of Patagonia (Eocene of Argentina)
Where: Chubut, Argentina (45.7° S, 68.7° W: paleocoordinates 48.1° S, 58.8° W)
• coordinate based on political unit
• basin-level geographic resolution
When: Mustersan mammal zone, Mustersan (48.0 - 42.0 Ma)
• Mustersan SALMA, Late Eocene (Woodburne et al. 2014).
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size classes: macrofossils, mesofossils
Collected by Carlos Ameghino in c. 1900
Primary reference: G. G. Simpson. 1948. The beginning of the age of mammals in South America. Part I. Bulletin of the American Museum of Natural History 91:1-232 [D. Croft/D. Croft/R. Butler]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 176286: authorized by Jelle Zijlstra, entered by Jelle Zijlstra on 06.02.2016
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Mammalia | |
Palaeopeltis tesseratus n. sp.
Palaeopeltis tesseratus n. sp. Ameghino 1902 edentate MACN 10948, broken fragment of shield with most of one scute and small parts of three others
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Lomaphorelus depstus n. gen. n. sp., Glyptatelus fractus n. sp.
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"Anteutatus laevus n. sp." = Utaetus laevus, "Meteutatus rigidus n. sp." = Barrancatatus rigidus, Sadypus ascendens n. sp., Sadypus confluens n. sp., Pseudeutatus clypeus n. gen. n. sp., "Pachyzaedyus cuneiformis n. gen. n. sp." = Pseudeutatus cuneiformis, "Isutaetus depictus n. gen. n. sp." = Pseudeutatus depictus, "Anutaetus circundatus n. gen. n. sp." = Pseudeutatus circundatus, Machlydotherium ater n. sp., Machlydotherium intortum n. sp., Machlydotherium asperum n. gen. n. sp.
"Meteutatus rigidus n. sp." = Barrancatatus rigidus Ameghino 1902 armadillo MACN 10958, twelve scutes
"Pachyzaedyus cuneiformis n. gen. n. sp." = Pseudeutatus cuneiformis Ameghino 1902 armadillo MACN 10956, one scute
"Isutaetus depictus n. gen. n. sp." = Pseudeutatus depictus Ameghino 1902 armadillo MACN 10961, one band and two buckler scutes
"Anutaetus circundatus n. gen. n. sp." = Pseudeutatus circundatus Ameghino 1902 armadillo MACN 10962, one scute
Machlydotherium asperum n. gen. n. sp. Ameghino 1902 armadillo MACN 10951, 28 scutes, many broken, and one tooth
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Propyrotherium saxeum n. gen. n. sp.
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Eohyrax brachyodus n. sp., Eohyrax platyodus n. sp., "Archaeohyrax nesodontoides n. sp." = Bryanpattersonia nesodontoides, "Eomorphippus rutilatus n. sp." = Bryanpattersonia nesodontoides, "Archaeohyrax sulcidens n. sp." = Bryanpattersonia sulcidens, "Eohyrax strangulatus n. sp." = Pseudhyrax strangulatus, "Trimerostephanos cuneolus n. sp." = Pseudhyrax strangulatus, Pseudhyrax eutrachytheroides n. gen. n. sp.
Eohyrax platyodus n. sp. Ameghino 1904 notoungulate MACN 10980, six teeth of which two are referable to this species: left m1 (lectotype) and left m3
"Archaeohyrax nesodontoides n. sp." = Bryanpattersonia nesodontoides Ameghino 1901 notoungulate MACN 10905, 10 lower and 7 upper teeth, including right m1, lectotype
"Eomorphippus rutilatus n. sp." = Bryanpattersonia nesodontoides Ameghino 1901 notoungulate MACN 10915, a right upper premolar (doubtfully referable), two left, and one right (lectotype) upper molars
"Archaeohyrax sulcidens n. sp." = Bryanpattersonia sulcidens Ameghino 1902 notoungulate MACN 1096, many isolated teeth, including left m1, lectotype
"Eohyrax strangulatus n. sp." = Pseudhyrax strangulatus Ameghino 1901 notoungulate MACN 10774, dentary p4-m2, type (but not other specimens cataloged under this number); MACN 10913, dentary with partial p4 and m1-2
"Trimerostephanos cuneolus n. sp." = Pseudhyrax strangulatus Ameghino 1901 notoungulate MACN 10968, six associated lower cheek teeth and jaw fragments
Pseudhyrax eutrachytheroides n. gen. n. sp. Ameghino 1901 notoungulate MACN, uncatalogued, maxillary fragment with dP2-4, M1
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Eopachyrucos pliciformis n. gen. n. sp.
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"Eomorphippus obscurus n. gen. n. sp." = Eomorphippus obscurus, "Pseudostylops subquadratus n. gen. n. sp." = Eomorphippus obscurus, "Proasmodeus exauctus n. sp." = Periphragnis exauctus, "Asmodeus armatus n. sp." = Periphragnis harmeri
"Eomorphippus obscurus n. gen. n. sp." = Eomorphippus obscurus Ameghino 1901 notoungulate MACN 10917, three upper molars (including left M3, lectotype); MACN 10914, isolated teeth including 7 referable to this species. Perhaps from the "Astraponotéen plus supérieure" (=Tinguirirican) level but no concrete evidence of that for these specimens.
"Pseudostylops subquadratus n. gen. n. sp." = Eomorphippus obscurus Ameghino 1901 notoungulate MACN 10904, P?3
"Proasmodeus exauctus n. sp." = Periphragnis exauctus Ameghino 1902 notoungulate MACN 10926, mandible p2-m3 (type); doubtfully referred MACN 10928, mandible right p2-m3, left m2-3
"Asmodeus armatus n. sp." = Periphragnis harmeri Roth 1899 notoungulate MACN 10925, P2-M3 on both sides, lectotype. See discussion of original hypodigm by Simpson (1967).
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Trimerostephanos coarctatus n. sp., Trimerostephanos coalitus n. sp., "Trimerostephanos sigma n. sp." = Acoelohyrax sigma
Trimerostephanos coarctatus n. sp. Ameghino 1901 notoungulate MACN 10965A, dentary p4-m3, lectotype; MACN 10965B, right P2-4, M2-3, left P2-4, M2-3; MACN 10966B, M?2; other specimens under MACN 10965-10966 were referred by Ameghino but may not belong here
"Trimerostephanos sigma n. sp." = Acoelohyrax sigma Ameghino 1901 notoungulate MACN 10967, mandible m1-2, type; MACN 10969, dentary m1-3
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Trimerostephanos ultimus n. sp., Procolpodon foratus n. gen. n. sp.
Trimerostephanos ultimus n. sp. Ameghino 1901 notoungulate Type not relocated by Simpson (1967), but based on m1 and M1-3
Procolpodon foratus n. gen. n. sp. Ameghino 1904 notoungulate Type not relocated by Simpson (1967), left astragalus
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"Notopithecinae indet." = Notopithecidae, "Guilielmoscottia plicifera n. gen. n. sp." = Guilielmoscottia plicifera, "Adpithecus amplidens n. sp." = Guilielmoscottia plicifera
"Notopithecinae indet." = Notopithecidae Ameghino 1897 notoungulate ? Notopithecus amplidens or Guilielmoscottia plicifera. MACN 10786, dentary p1-m3
"Guilielmoscottia plicifera n. gen. n. sp." = Guilielmoscottia plicifera Ameghino 1901 notoungulate MACN 10898, maxilla P1-M3
"Adpithecus amplidens n. sp." = Guilielmoscottia plicifera Ameghino 1901 notoungulate MACN 10895, maxilla P3-M3 (lectotype) and maxilla dP2-4, M1-2; MACN 10901, C-P2, P4-M2, m3, and upper premolar
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Pseudopachyrucos foliiformis n. gen. n. sp., Eohegetotherium priscum n. gen. n. sp., Ultrapithecus robustus n. sp., Edvardocopeia sinuosa n. gen. n. sp.
Pseudopachyrucos foliiformis n. gen. n. sp. Ameghino 1901 notoungulate MACN A55-11, three isolated, broken teeth, including the lectotype
Eohegetotherium priscum n. gen. n. sp. Ameghino 1901 notoungulate MACN, uncatalogued lot, isolated upper molar (lectotype)
Ultrapithecus robustus n. sp. Roth 1902 notoungulate Type not relocated by Simpson (1967), said to be "[p]resumably Mustersan"
Edvardocopeia sinuosa n. gen. n. sp. Ameghino 1901 notoungulate Type not relocated by Simpson (1967), but original description based on an upper premolar and a symphysis
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Paulogervaisia celata n. sp.
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"Lambdaconus alius n. sp." = Polymorphis alius
"Lambdaconus alius n. sp." = Polymorphis alius Ameghino 1901 placental MACN 10893, mandible with left p2-m1, right p2-m3
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"Decaconus intricatus n. gen. n. sp." = Polyacrodon lanciformis
"Decaconus intricatus n. gen. n. sp." = Polyacrodon lanciformis Roth 1899 placental MACN 10897, right upper molar
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Procladosictis anomala n. gen. n. sp.
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? Promysops primarius n. sp.
? Promysops primarius n. sp. Ameghino 1902 marsupial MACN A55-10, isolated incisor, thought to be lost by Simpson (1948) but relocated by Simpson (1967).
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Picunia nitida n. gen. n. sp. Roth 1902 mammal "Probably an isolated upper molar; not found in collection"
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