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82 results for “Eutheria”
Figure 6. Aspanlestes aptap, URBAC 02–45 in Phylogenetic analysis, taxonomic revision, and dental ontogeny of the Cretaceous Zhelestidae (Mammalia: Eutheria)
Figure 6. Aspanlestes aptap, URBAC 02–45, stereophotographs and line drawings of left maxillary fragment with heavily worn canine, P4-5, M1-2 (in grey in drawing) and alveoli for P1-3 (in black in drawing). A, labial; B, occlusal; C, lingual views. See Appendix 1 for abbreviations.
Figure 7. Aspanlestes aptap, CCMGE 1 in Phylogenetic analysis, taxonomic revision, and dental ontogeny of the Cretaceous Zhelestidae (Mammalia: Eutheria)
Figure 7. Aspanlestes aptap, CCMGE 1/12455, stereophotographs of left maxillary fragment with P5, M1-2. A, lingual; B, occlusal; C, labial views.
Figure 15 in Phylogenetic analysis, taxonomic revision, and dental ontogeny of the Cretaceous Zhelestidae (Mammalia: Eutheria)
Figure 15. Parazhelestes mynbulakensis, dentary fragments, stereophotographs of URBAC 06–113, left dentary fragment with i1 alveolus, i2-4 fragments, i4 alveolus, and canine roots, A, anterior and labial views; stereophotographs of URBAC 02–13, left dentary fragment with p2, p3 roots, and p4 anterior root and talonid; B, labial, occlusal, and lingual views; stereophotographs of URBAC 97–03, right dentary fragment with p1 alveoli, p2, p3 alveoli, p4 lacking anterior, p5 roots, and m1 alveoli, C, lingual, occlusal, and labial views; photographs of URBAC 97–03 showing ventral margin of dentary, D, labial and E, lingual (dashed line shows missing anteroventral margin); stereophotographs of ZIN 88477, left dentary fragment with p4, anterior root of p5, and alveoli for p3, F, lingual, occlusal, and labial views.
Figure 5. Aspanlestes aptap, URBAC 03–93 in Phylogenetic analysis, taxonomic revision, and dental ontogeny of the Cretaceous Zhelestidae (Mammalia: Eutheria)
Figure 5. Aspanlestes aptap, URBAC 03–93, stereophotographs and line drawings of right petrosal and exoccipital. A, ventral; B, posterior; C, anterodorsal (intracranial); D, lateral views. Light grey area in A is damaged section. See Appendix 1 for abbreviations.
Figure 3. Aspanlestes aptap, URBAC 03–93 in Phylogenetic analysis, taxonomic revision, and dental ontogeny of the Cretaceous Zhelestidae (Mammalia: Eutheria)
Figure 3. Aspanlestes aptap, URBAC 03–93, stereophotographs and line drawings of presphenoid. A, anterior; B, ventral; C, posterior (intracranial) views; D, left lateral. Light grey area is portion exposed ventrally in articulated skull. See Appendix 1 for abbreviations.
Figure 4. Aspanlestes aptap, URBAC 03–93 in Phylogenetic analysis, taxonomic revision, and dental ontogeny of the Cretaceous Zhelestidae (Mammalia: Eutheria)
Figure 4. Aspanlestes aptap, URBAC 03–93, stereophotographs and line drawings of basisphenoid. A, anterior; B, ventral; C, dorsal (intracranial) views. See Appendix 1 for abbreviations.
Figure 28 in Phylogenetic analysis, taxonomic revision, and dental ontogeny of the Cretaceous Zhelestidae (Mammalia: Eutheria)
Figure 28. Stereophotographs of zhelestids showing dental replacement. Roman numerals are stages described in the text and shown in Figure 27. The 'd' designation refers to deciduous teeth or alveoli for such teeth. Light grey letters indicate alveoli and black letters indicate at least partial crowns or roots. A, URBAC 02–68; B, URBAC 00–68; C, ZIN 88491; D, CCMGE 3/11658; E, ZIN 82555; F, ZIN 88469; G, ZIN 88485; H, URBAC06-110; I, ZIN 88470; J, URBAC 03–218, with removed p5 crown in occlusal and lingual views; K, ZIN 88448; L, URBAC 00–29.
Figure 1 in Phylogenetic analysis, taxonomic revision, and dental ontogeny of the Cretaceous Zhelestidae (Mammalia: Eutheria)
Figure 1. Aspanlestes aptap, reconstruction of the skull and dentary based on URBAC 03–93 and 02–45 as well as various dentary and dental remains referred to this species. A, dorsal; B, lateral; C, ventral; D, posterior views. Light grey areas represent known parts or mirror images of known parts. Scale bar = 5 mm. See Appendix 1 for abbreviations.
Figure 21. Zhelestes temirkazyk, CCMGE 10 in Phylogenetic analysis, taxonomic revision, and dental ontogeny of the Cretaceous Zhelestidae (Mammalia: Eutheria)
Figure 21. Zhelestes temirkazyk, CCMGE 10/12176 (holotype), left maxilla with heavily worn P2, P3 (now broken), P4-5, M1-3 and alveoli for C, P1, stereophotographs of A, occlusal; B, labial; and C, lingual views.
Figure 23 in Phylogenetic analysis, taxonomic revision, and dental ontogeny of the Cretaceous Zhelestidae (Mammalia: Eutheria)
Figure 23. Zhelestes temirkazyk, stereophotographs of CCMGE 37/12000, left m1, A, labial, occlusal, and lingual views; URBAC 04–190, worn left m1?, B, labial, occlusal, and lingual views; URBAC 04–309, right m2, C, lingual, occlusal, and labial views; CCMGE 3/12953, worn right m3, D, lingual, occlusal, and labial views.
Figure 20. Parazhelestes robustus, URBAC 04–324, left p2, A in Phylogenetic analysis, taxonomic revision, and dental ontogeny of the Cretaceous Zhelestidae (Mammalia: Eutheria)
Figure 20. Parazhelestes robustus, URBAC 04–324, left p2, A, stereophotographs of labial, occlusal, and lingual views, and B, photograph in labial view showing roots; URBAC 97–05, right dentary fragment with m1 and 3 alveoli, and m2; C, photograph of dentary in labial view and D, m2 in lingual, occlusal, and labial views; URBAC 03–38, left m3, E, labial, occlusal, and lingual views.
Figure 25. Eoungulatum kudukensis, URBAC 99–6 in Phylogenetic analysis, taxonomic revision, and dental ontogeny of the Cretaceous Zhelestidae (Mammalia: Eutheria)
Figure 25. Eoungulatum kudukensis, URBAC 99–6, right edentulous right dentary with multiple but undetermined number of incisor alveoli, single canine alveolus, and double alveoli for p1-5, m1-3, A, stereophotograph and line drawing of occlusal view, and photographs of labial and lingual views; stereophotographs and line drawing, URBAC 00–12, dentary with c, p1-3, p5 alveoli, and p4, B, labial, occlusal, and lingual views; stereophotographs, URBAC 06–42, left m2, C, occlusal, lingual, and labial views.
Figure 22. Zhelestes temirkazyk, ZIN 88469 in Phylogenetic analysis, taxonomic revision, and dental ontogeny of the Cretaceous Zhelestidae (Mammalia: Eutheria)
Figure 22. Zhelestes temirkazyk, ZIN 88469, photograph of posterior of damaged edentulous dentary preserving the angular and part of the condylar processes, A, lingual, posterior, and labial views; stereograph of CCMGE 3/11658, i1-4 alveoli, erupting canine, dc alveolus, p1 alveolus, p2, B, anterocclusal, lingual, and labial views (see also Fig. 28D); stereograph of CCMGE 2/12953, left p5, C, labial, occlusal, and lingual views; stereograph of URBAC 03–218, erupting right p5 with roots unformed, D, lingual, occlusal, and labial views (see also Fig. 28J); photograph of ZIN 88448, erupting p5, m1-2 alveoli, unerupted m3, E, occlusal view.
Figure 2. Aspanlestes aptap, URBAC 03–93 in Phylogenetic analysis, taxonomic revision, and dental ontogeny of the Cretaceous Zhelestidae (Mammalia: Eutheria)
Figure 2. Aspanlestes aptap, URBAC 03–93, frontals and possibly parts of parietals. A, ventral stereophotograph (intracranial) and line drawing. Photographs and line drawings, B, lateral; C, dorsal views. See Appendix 1 for abbreviations.
Data from: New pantolestids (Mammalia; Eutheria) from the late Paleocene (late middle Tiffanian) Roche Percée local fauna, southeastern Saskatchewan, Canada
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FIG. 3 in Cranial And Postcranial Morphology Of The Insectivoran-Grade Mammals Hsiangolestes And Naranius (Mammalia, Eutheria) With Analyses Of Their Phylogenetic Relationships
FIG. 3. Composite carbon isotope and magnetic stratigraphy of the Hengyang Basin Paleocene/Eocene boundary interval. A. (above) Composite stratigraphic data from local sections 1 (diamonds), 2 (circles) and 3 (squares) projected on the section 1 stratigraphic scale. The positions of Hengyang Basin (HB) faunal horizons are indicated by LC-L: lower Lingcha fauna from Limuping Formation, LC-U: upper Lingcha fauna from Lingcha Formation. Paleomagnetic data, presented as the latitude of the Virtual Geomagnetic Pole (VGP) corresponding to the average site direction for each sampling locality. Solid symbols represent data from alpha sites, and open circles represent beta sites. Magnetochron assignments are made with reference to marine Paleocene/Eocene boundary section (Kennett and Stott, 1991). B. (opposite page) The Paleocene/Eocene boundary is placed at the base of the carbon isotope excursion, and assigned an age of 54.97 Ma after Wing et al. (1999). Modified from Ting et al. (2003).
Data matrix for phylogenetic analysis of fossil insectivorans in: Cranial and postcranial morphology of the insectivoran-grade mammals Hsiangolestes and Naranius (Mammalia, Eutheria) with analyses of their phylogenetic relationships
<p>Early Cenozoic "insectivorans" possess some of the most primitive morphologies among eutherian mammals. Studies of these archaic mammals offer insights into the early diversifications of basal eutherians. Despite such importance, early fossil "insectivorans" from Asia are poorly known due to a scarcity of fossil remains, which often consist only of fragmentary jaws and teeth. Discoveries of remarkably well-preserved fossil "insectivorans", including complete skulls and articulated postcranial skeletons, from the early Eocene Hengyang Basin in south-central Hunan Province, China, offer a rare opportunity to thoroughly study two taxa belonging to different families.</p> <p>Fine-grained red beds from Hengyang Basin preserve extraordinary fossils with morphological structures rarely seen elsewhere. Thin sections of a skull of Hsiangolestes youngi Zheng and Huang, 1984, for example, reveal the extremely delicate nasal and maxillary turbinates, which, as far as we are aware, are the first known from fossils of this age. We thus take this opportunity to document in detail the cranial and dental morphology, as well as postcranial skeletons, of the Hengyang "insectivorans."</p> <p>In this monograph, we describe several complete skulls and serial sections of a skull, as well as many partial skulls, mandibles, and postcranial skeletons of Hsiangolestes youngi, an Asian early Eocene insectivoran-grade mammal. We also report a new species of Naranius Russell and Dashzeveg 1986—N. hengdongensis—an Asian early Eocene cimolestid and describe its well-preserved skulls and mandibles.</p> <p>Hsiangolestes is endemic to Asia. It is currently known only from the earliest Eocene Lingcha Formation, Hengyang Basin, Hunan Province, China. Naranius closely resembles Cimolestes Marsh, 1889, the type genus of the family Cimolestidae. It is mainly distributed in Asia and known from the earliest Eocene deposits in the Bumban Member of the Naran Bulak Formation, Nemegt Basin, of Mongolia, and the Lingcha Formation, Hengyang Basin, Hunan Province, China. The only record of Naranius reported outside of Asia is N. americanus from the early Wasatchian Red Hot Local Fauna, Mississippi, United States.</p> <p>Using PAUP and TNT search algorithms, we place these Hengyang taxa within phylogenetic context of other fossil "insectivorans" from the Mesozoic and early Cenozoic of Asia together with some well-known Holarctic taxa. A phylogenetic analysis of 290 cranial and dental characters from 36 fossil and modern insectivoran-grade taxa is presented, focusing on new materials of Hsiangolestes youngi and Naranius hengdongensis. Based on the results of our phylogenetic analyses, we propose that (1) Hsiangolestes, Prosarcodon, Sarcodon, and Sinosinopa, form a monophyletic group, for which we propose the family name Sarcodontidae; (2) the family Cimolestidae should be restricted to Naranius and Cimolestes, which are sister taxa; (3) the systematic position of Naranius americanus is uncertain; and (4) the family Micropternodontidae should be restricted to Micropternodus and its allies in North America.</p>
Data matrix for phylogenetic analysis of fossil insectivorans in: Cranial and postcranial morphology of the insectivoran-grade mammals Hsiangolestes and Naranius (Mammalia, Eutheria) with analyses of their phylogenetic relationships
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FIG. 45 in Cranial And Postcranial Morphology Of The Insectivoran-Grade Mammals Hsiangolestes And Naranius (Mammalia, Eutheria) With Analyses Of Their Phylogenetic Relationships
FIG. 45. Skull of Naranius hengdongensis, sp. n., IVPP V7439, stereophotograph in ventral view.
FIG. 37. Hsiangolestes youngi, IVPP V7454 in Cranial And Postcranial Morphology Of The Insectivoran-Grade Mammals Hsiangolestes And Naranius (Mammalia, Eutheria) With Analyses Of Their Phylogenetic Relationships
FIG. 37. Hsiangolestes youngi, IVPP V7454, stereophotograph of cervical vertebrae in dorsal view.
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