| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Paciculus walshi
Taxonomy
Paciculus walshi was named by Lindsay et al. (2016) [
]. Its type specimen is SDSNH 73115, a mandible, and it is a 3D body fossil.
Synonymy list
| Year | Name and author |
|---|---|
| 2016 | Paciculus walshi Lindsay et al. p. 82 figs. Figures 4-7 |
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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.
†Paciculus walshi Lindsay et al. 2016
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. Lindsay et al. 2016 | Paciculus walshi is characterised by having lower incisors with type 10 schmelzmuster and three ribs on the anterior enamel surface, a reduced anterocone on M1 and absence of ananteroconid on m1; the anterior cingulum on m1 joins the anterior metaconid firmly near mid-height, it then curves gently lingually and descends to terminate at the anterior base of the protoconid. Paciculus walshi also shares a hystrichomorphous zygoma with other members of the Tribe Leidymyini, and differs from most other members of the tribe Leidymini in lacking an anteroconid on m1. Most other Cricetidae known from North America (except for some specimens of Paciculus nebraskensis, Paciculus dakotensis, Paciculus cedrus, aciculus (Geringia) copiosus, Leidymys juxtaparvulus and Leidymys nematodon) have a well-developed anteroconid on m1.
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Measurements
No measurements are available
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| Source: o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, Lillegraven 1979, Carroll 1988, Ji et al. 2002, Nowak 1999 | |||||
Age range: Piacenzian or 3.60000 to 2.58000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Piacenzian | USA (Florida) | Trichechodon huxleyi (22712) |