Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Heteroeomys was named by Qiu (2006). Its type is Heteroeomys yunnanensis.
It was assigned to Eomyidae by Qiu (2006).
It was assigned to Eomyidae by Qiu (2006).
Species
H. yunnanensis (type species)
Synonymy list
Year | Name and author |
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2006 | Heteroeomys Qiu p. 313 fig. 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 | |
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Z. Qiu 2006 | "Heteroeomys differs from Eomys Schlosser, 1884 in the absence of a lingual anteroloph on upper molar and weaker development of the anterolophid on the lower molars; longitudinal crest in the upper cheek teeth situated slightly lingual to the middle of the tooth , located labial to the middle of the tooth in the lower cheek teeth; synclines 1 and 4 very long and narrow in upper cheek teeth.
Heteroeomys differs from Plesieomys gen. nov. in larger size and slightly higher crowned teeth; unequally developed lingual and labial main cusps; longer anteroloph joining protocone directly on upper molar; better developed metaloph on M1/2, and hypolophid on m1/2. Heteroeomys differs from Eomyops Engesser, 1979 and Leptodontomys Shotwell, 1956 in larger dimensions and higher crowned teeth (except E. hebeiseni) ; having longer anteroloph that lacks lingual part on upper molar; deeper 1st and 4th synclines in upper cheek teeth. Heteroeomys differs from Pentabuneomys Engesser, 1990 in the absence of a lingual anteroloph on M1/2 and weaker development of the anterolophid on m1/2; having less rotund upper molars that lack well developed central cusps. Heteroeomys differs from Pseudadjidaumo Lindsay, 1972 in having loph(id)s directed more perpendicular to the longitudinal axis; the absence of lingual anteroloph; and the anteroloph uniting directly with the protocone on upper molar. Heteroeomys differs from Ronquillomys Jacobs, 1977 in having smaller dimensions with longer anterolophids on m1/2; having a deeper 1st syncline on M1/2, a broader 4th syncline on m1/2; longitudinal crest situated more lingually in M1/2, and more labially in m1/2. Heteroeomys differs from Kansasimys Wood ,1936 in smaller dimensions; having deeper synclines; hypolophid directed posteromedially to join the posterolophid on lower molars." |
Measurements
No measurements are available
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Source: o = order, subc = subclass, c = class, subp = subphylum | |||||
References: Lillegraven 1979, Carroll 1988, Nowak 1999, Hendy et al. 2009, Ji et al. 2002 |
Age range: Late/Upper Miocene or 11.63000 to 5.33300 Ma
Collections (2 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Late/Upper Miocene | China (Yunnan) | H. yunnanensis (235536 235543) |