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Mammalia - Rodentia - Cricetidae
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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.
|M. Freudenthal et al. 1994||Small Pseudocricetodoninae, foramen incisivum in the maxilla short (posterior border lying before the foremost point of the M1).
Lower molars: The ectolophid lies labially of the central axis of the molars. Posterior branch of the hypoconid hardly ever present. m3 smaller than m1. Posterior part of m3 less reduced than in Eucricetodontinae. Protoconid hind-armin m1 and m2 nearly always present in m1 nearly always connected to the metaconid. Anterior metalophulid in m1 frequently absent. In m1 the metaconid frequently sends a long spur along the border of the molar toward the entoconid. Posterolophid of m1 hardly curved, running straightly towards the entoconid. In m2 and m3 the metalophulid is generally more of less transverse, which, combined with a long anterolophulid, results in a wide anterosinusid.
Upper molars: Mesolophs well developed, often long. Lingual border of M1 straight or concave, or very slightly convex, froming an angle of c. 90 degrees with the posterior border. The prelobe of M1 is frequently set-off from the rest of the molar, the lingual border between anterocone and protocone presenting a sharp angle.
|M. Freudenthal 1994 (Allocricetodon)||Pseudocricetodoninae of medium size. In M1 there is a crest descending backwards from the metaconid, along the border of the molar, that may reach the entoconid; in most cases there is no anterior metalophulid, and the metaconid is connected to the anteroconid along the molar border. In M1 and M2 (lower) the posterosinusid is completely closed by a high posterolophid. Protoconid hind-arm in M3 very well developed. In M1 (upper) the anterolophule is generally incomplete; instead, there is frequently a longitudinal connection between anterocone and paracone. The posterior wall of the metacone in M1 and M2 (upper) is very steep or vertical, sometimes overhanging. The trapezoid shape of M2 is caused by a reduction of both hypocone and metacone.|
|H. de Bruijn et al. 2003||Small to medium sized cricetids with ‘lophodontish’ dental pattern. The main cusps and crests are separated by valleys with a flat bottom. The well-defined gracile ridges are usually straight, rarely irregular due to small folds in the enamel (translated from German).|