Krause, David W., Hahn, Gerhard (1990) Systematic position of the Paulchoffatiinae (Multituberculata, Mammalia) Journal of Paleontology, 64 (6) 1051-1054 doi:10.1017/s0022336000019922

Reference Type | Journal (article/letter/editorial) | ||
---|---|---|---|
Title | Systematic position of the Paulchoffatiinae (Multituberculata, Mammalia) | ||
Journal | Journal of Paleontology | ||
Authors | Krause, David W. | Author | |
Hahn, Gerhard | Author | ||
Year | 1990 (November) | Volume | 64 |
Issue | 6 | ||
Publisher | Cambridge University Press (CUP) | ||
DOI | doi:10.1017/s0022336000019922Search in ResearchGate | ||
Generate Citation Formats | |||
Mindat Ref. ID | 415096 | Long-form Identifier | mindat:1:5:415096:5 |
GUID | 0 | ||
Full Reference | Krause, David W., Hahn, Gerhard (1990) Systematic position of the Paulchoffatiinae (Multituberculata, Mammalia) Journal of Paleontology, 64 (6) 1051-1054 doi:10.1017/s0022336000019922 | ||
Plain Text | Krause, David W., Hahn, Gerhard (1990) Systematic position of the Paulchoffatiinae (Multituberculata, Mammalia) Journal of Paleontology, 64 (6) 1051-1054 doi:10.1017/s0022336000019922 | ||
In | (1990, November) Journal of Paleontology Vol. 64 (6) Cambridge University Press (CUP) | ||
Abstract/Notes | The late Jurassic Paulchoffatiinae, one of two named subfamilies of the family Paulchoffatiidae (suborder Plagiaulacoidea), are generally recognized as the most primitive known, undoubted multituberculates (e.g., Hahn, 1969; Clemens and Kielan-Jaworowska, 1979; Hahn and Hahn, 1983; Hahn et al., 1989). Despite the primitive morphology of members of this subfamily (Paulchoffatia and Pseudobolodon), three features have been posited as autapomorphic for the subfamily (or family), and thus to preclude it from the ancestry of later multituberculates: 1) the distribution of cusps on M2 (Hahn, 1969, 1971); 2) the complex structure of I3 (Hahn, 1969, 1971); and 3) the position of M2 relative to M1 (Van Valen, 1976; Clemens and Kielan-Jaworowska, 1979; Hahn, 1987). Van Valen (1976) argued that the first two features are not unequivocally autapomorphic for paulchoffatiines and that they could, and indeed should, be considered primitive for the order. Hahn (1977) responded to Van Valen's assessment but Clemens and Kielan-Jaworowska (1979, p. 138) opined that “neither argument is particularly compelling” in light of the poor early record of multituberculates and the consequent lack of knowledge concerning morphological variability. |
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