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Kulbeckia kulbecke
Taxonomy
Kulbeckia kulbecke was named by Nessov (1993). Its type specimen is CCMGE 52/12455, a tooth (left [upper] M2), and it is a 3D body fossil. Its type locality is CBI-5a, Dzharakuduk II, which is in a Turonian/Turonian terrestrial sandstone in the Bissekty Formation of Uzbekistan.
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1993 | Kulbeckia kansaica Nessov |
| 1993 | Kulbeckia kulbecke Nessov |
| 1993 | Kulbeckia rara Nessov |
| 1997 | Kulbeckia kulbecke Nessov p. 168 figs. pl. 49 |
| 2003 | Kulbeckia kulbecke Archibald and Averianov pp. 405-406 |
| 2004 | Kulbeckia kansaica Kielan-Jaworowska et al. pp. 494, 504 |
| 2004 | Kulbeckia kulbecke Kielan-Jaworowska et al. pp. 494, 504 |
| 2004 | Kulbeckia rara Kielan-Jaworowska et al. pp. 494, 504 |
| 2005 | Kulbeckia kulbecke Archibald and Averianov |
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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.
†Kulbeckia kulbecke Nessov 1993
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Invalid names: Kulbeckia kansaica Nessov 1993 [synonym], Kulbeckia rara Nessov 1993 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. D. Archibald and A. O. Averianov 2003 | Relative to other zalambdalestids, characters labeled with a plus (1) are apomorphic, those labeled with a minus (2) are plesiomorphic, and those labeled with a question mark (?) are of uncertain polarity. Compared to other zalambdalestids, notably Zalambdalestes lechei: tooth size ranges from 62 to 85 percent of Zalambdalestes lechei (2);
upper incisor, canine, and anterior premolar diastemata smaller, especially between I2 and C (2); four upper premolars rather than three or four (2); conules, especially paraconule, placed lingually (except labial M3 metaconule, which is similar to condition in other zalambdalestids) rather than more labially (this is problematic as Zalambdalestes is argued to have more labially placed conules, but it may be similar to Kulbeckia as the conules are quite worn in Zalambdalestes), with internal cristae distinct and low rather than being winglike (again this is problematic as Zalambdalestes is quite worn in this area); para- and metaconular basins each form distinct depression rather than being flat or convex (again this is problematic as Zalambdalestes is quite worn in this area); upper molar protocones usually with a small vertical crenulation or small cuspule on antero and posterolingual margins to small but well-developed cingula, rather than lacking such features (1); M3 and m3 are not as small relative to other molars (2); four lower incisors rather than three (2); lower canine two-rooted or possibly with a single bifurcated root rather than single-rooted (2); lower canine and premolars with almost no diastemata (2); trigonids not as anteroposteriorly shortened (2); cristid obliqua contacts posterior of trigonid at protocristid notch rather below protoconid (2); angular process more posteriorly placed relative to end of tooth row and more dorsally placed relative to ventral margin of dentary at least in adults (2). |
Measurements
No measurements are available
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| Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
| References: Lillegraven 1979, Kielan-Jaworowska et al. 1979, Ji et al. 2002, Carroll 1988, Hendy et al. 2009 | |||||
Age range: base of the Late/Upper Turonian to the top of the Early/Lower Santonian or 93.50000 to 83.50000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Turonian - Late/Upper Turonian | Uzbekistan (Navoi) | Kulbeckia kulbecke (46959 type locality: 58166) Kulbeckia sp. (58168) | |
| Late/Upper Turonian - Coniacian | Uzbekistan (Navoi) | Kulbeckia kulbecke (123485) | |
| Early/Lower Santonian | Tajikistan (Sogd) | Kulbeckia kulbecke (58701) |