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Holoclemensia texana
Taxonomy
Clemensia texana was named by Slaughter (1968) ["genotype"]. Its type specimen is SMP-SMU 61997, a tooth (RM2, missing the protoconal region), and it is a 3D body fossil. Its type locality is Butler Farm, which is in an Aptian/Albian terrestrial claystone in the Antlers Formation of Texas. It is the type species of Holoclemensia, Clemensia.
It was recombined as Holoclemensia texana by Slaughter (1968), Kielan-Jaworowska et al. (1979), Kielan-Jaworowska et al. (2004), Winkler et al. (2011) and Davis and Cifelli (2011).
It was recombined as Holoclemensia texana by Slaughter (1968), Kielan-Jaworowska et al. (1979), Kielan-Jaworowska et al. (2004), Winkler et al. (2011) and Davis and Cifelli (2011).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1968 | Clemensia texana Slaughter |
| 1968 | Holoclemensia texana Slaughter |
| 1979 | Holoclemensia texana Kielan-Jaworowska et al. p. 183 |
| 1989 | Comanchea hilli Jacobs et al. |
| 2004 | Comanchea hilli Kielan-Jaworowska et al. pp. 411, 422 |
| 2004 | Holoclemensia texana Kielan-Jaworowska et al. pp. 411, 421 |
| 2011 | Holoclemensia texana Davis and Cifelli p. 450 |
| 2011 | Holoclemensia texana Winkler et al. p. 8 |
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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.
†Holoclemensia texana Slaughter 1968
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Invalid names: Comanchea hilli Jacobs et al. 1989 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| B. M. Davis and R. L. Cifelli 2011 | Basal eutherian mammal differing from all other basal eutherians in presence of a very large central stylar cusp (= mesostyle); differs from stem tribosphenidans in very small size of stylocone, the presence of a very large mesostyle, relatively narrow metastylar lobe at all loci, a prominent, flange−like parastylar lobe on mesial molars, very tall, bulbous metaconid on lower molars, and highly mesiodistally compressed trigonid; differs from deltatheroidans in presence of three molars, relatively weak postmetacrista, small stylocone, and small, inclined paraconid; differs from Slaughteria in larger size, presence of metaconid on p5, metaconid taller than paraconid on molars, and absence of distal metacristid; differs from Pappotherium in presence of three molars, shallower ectoflexus, more separated paracone and metacone, narrower metastylar lobe, metaconid taller than paraconid, and absence of distal metacristid. |
Measurements
No measurements are available
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| Source: g = genus, subc = subclass, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, Ji et al. 2002, Carroll 1988, Lillegraven 1979, Kielan-Jaworowska et al. 1979 | |||||
Age range: base of the Albian to the top of the Early/Lower Albian or 113.00000 to 109.00000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Aptian - Early/Lower Albian | USA (Texas) | Clemensia texana (type locality: 14375) Holoclemensia texana (14388) | |
| Late/Upper Aptian - Early/Lower Albian | USA (Oklahoma) | Holoclemensia texana (14392) | |
| Albian | USA (Texas) | Comanchea hilli (14411) Holoclemensia texana (14420) |