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Globidens schurmanni
Taxonomy
Globidens schurmanni was named by Martin (2007). Its type specimen is SDSM 74764, a partial skeleton (cranium, jaws, cervical and trunk vertebrae partially articulated, pectoral girdles, partial anterior paddle, isolated humerus and ulna, and isolated caudal ver), and it is a 3D body fossil. Its type locality is Big Bend of the Missouri, which is in a Campanian marine horizon in the Pierre Shale Formation of South Dakota.
Synonymy list
| Year | Name and author |
|---|---|
| 2007 | Globidens schurmanni Martin |
| 2019 | Globidens schurmanni Driscoll et al. |
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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.
†Globidens schurmanni Martin 2007
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. E. Martin 2007 | A species of Globidens that possesses a heterodont dentition normally without carinae and consisting of anterior high, slender teeth (particularly the first maxillary and dentary teeth); a medial tooth row interval characterized by highcrowned, symmetrical pointed teeth with no posterior buttress; and a posterior interval characterized by round, massive, brachyodont teeth that are not dorsoventrally compressed. Upper anterior teeth posteriorly inclined and recurved. Rather than the rounded teeth of North American Globidens species, middle portion of the tooth row exhibits a high, bell-shaped lateral profile. Middle and posterior teeth do not possess posterior buttresses. Premaxillae short and compact, with wide internarial bar. Premaxillary-maxillary suture rises vertically before trending posteriorly. Frontal anteroposteriorly short, rounded, without lateral emargination and with no medial crest. |
Measurements
No measurements are available
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| Source: f = family, c = class, subp = subphylum, uc = unranked clade | |||||
| References: Carroll 1988, Hendy et al. 2009, Gervais 1852 | |||||
Age range: Late/Upper Campanian or 83.50000 to 70.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Campanian | USA (South Dakota) | Globidens schurmanni (type locality: 123582) |