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Scleromys schurmanni
Discussion
Holotype: part of left maxilary with P4-M3 in place; no number. Topotypes: Isolated right lower p4 (UCMP no. 40557), Right upper M2 (UCMP no. 40556), Right upper M3 (UCMP no. 40555). (Fields 1957) Right spelling according to Stehling: Scleromys schürmanni
Taxonomy
Scleromys schurmanni was named by Stehlin (1940). It is considered to be a form taxon. It is a 3D body fossil.
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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.
†Scleromys schurmanni Stehlin 1940
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. W. Fields 1957 | Skull elongate, low; parietal region broad, flat, frontals extremely flattened; nassals long, straight, extending anterior to incisors; rostral masseteric fossa shallow, ovoid anteroposteriorly; infraorbital foramen fairly large with basilar furrow for transmission of nerves; lacrymal large; no accessory opening on rostrum for lacrymal duct; palate long, narrow, incisive foramen elongated, bounded by bony ridges continuing posteriorly to upper P4; posterior palatine foramen small; palatine margin of internal nares between upper M3 smooth, ovoid; basicarnial axis elongate, narrow; interorbital region open as orbital fissure; auditory bullae moderately enlarged, elongate anteroposteriorly; external auditory meatus rounded with circular opening ventral to tubular part; stylomastoid foramen posterior and between double opening; foramen magnum wide, low; incisors somewhat flattened, enamel extending halfway onto lateral face; cheek teeth semi-rooted, with three weak inflections on labial side, one deep inflection on lingual side; tooth rows somewhat converging anteriorly; mandible heavy; posterior end of incisors extending into ascending ramus; diastema short; coronoid process low, disorted outward, masseteric fossa shallow, masseteric crest small; angular process slightly inflected.
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