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915 results for “morphological evolution”
Figure 3 in Morphological phylogeny of Megachilini and the evolution of leaf-cutter behavior in bees (Hymenoptera: Megachilidae)
Figure 3. Female mandible of Megachile Latreille s.l. in outer (A, E, G), frontal (D), and inner views (B, C, F, H). A. Megachile (Callomegachile) pluto Smith. B. M. (Callomegachile) sp. C–E. M. (Chelostomoda) spissula Cockerell. F. M. (Rhyssomegachile) simillima Smith. G. M. (Creightonella) frontalis (Fabricius). H. M. (Pseudocentron) pruina Smith. Interdental laminae highlighted in green (odontogenic) and pink (ctenogenic). Abbreviations: CR = corono-radicular ridge; AP = adductor apical ridge.
Figure 5 in Morphological phylogeny of Megachilini and the evolution of leaf-cutter behavior in bees (Hymenoptera: Megachilidae)
Figure 5. Some male morphological features used in the phylogenetic analysis. A–C. Ventral projection of mandible. D–F. Dorsal (left half) and ventral (right half) views of sixth tergum. G–I. Dorsal view of seventh tergum. J. Ventral view of sixth sternum. K–M. Ventral view of eighth sternum. N–P. Dorsal view of genital capsule. Q, R. Profile view of genital capsule. S. Apex of penis valves. Taxa: Megachile (Acentron) albitarsis Cresson (A, L); M. (Callomegachile) biseta Vachal (B); M. (Maximegachile) maxillosa Guérin-Méneville (C); M. (Argyropile) longuisetosa Gonzalez & Griswold (D, G); M. (Grosapis) cockerelli (E, H, R); M. (Creightonella) cognata Smith (F, I); M. (Zonomegachile) moderata Smith (J, K); M. (Largella) donbakeri Gonzalez & Engel (M); M. (Austromegachile) montezuma Cresson (N); M. (M.) centuncularis (Linnaeus) (O); M. (Moureapis) maculata Smith (P); M. (Chalicodoma) parietina (Geoffroy) (Q); M. (Chalicodoma) sicula (Rossi) (S).
Fig. 11 in Morphological homology, evolution, and proposed nomenclature for bear dentition
Fig. 11. Occlusal views of m2 homologous structures in cave bear (A, B) and giant panda (C, D) lineages. A. Ursavus tedfordi Qiu, Deng, and Wang, 2014 (HMV1453) from Huaigou, Gansu Province, Late Miocene. B. Ursus deningeri von Reichenau, 1904 (NMM1956/909, photo Jan Wagner) from Mosbach 2, Germany, early Middle Pleistocene. C. Ailuropoda wulingshanensis Wang and Lin, 1982 (IVPP V13459.91) from Longgu Cave, Jianshi, Hubei Province. D. Ailurarctos lufengensis Qiu and Qi, 1989 (IVPP V6892) from Lufeng, Yunnan Province, Latest Miocene. A1–D1, photographs; A2–D2, photographs with homologous structures indicated. Not to scale.
Fig. 8 in Morphological homology, evolution, and proposed nomenclature for bear dentition
Fig. 8. Occlusal views of m1 homologous structures in cave bear (A, B) and giant panda (C, D) lineages. A. Ursavus tedfordi Qiu, Deng, and Wang, 2014 (HMV1453) from Huaigou, Gansu Province, Late Miocene. B. Ursus deningeri Von Reichenau, 1904 (NMM1956/907, photo Jan Wagner) from Mosbach 2, Germany, early Middle Pleistocene. C. Ailuropoda wulingshanensis Wang and Lin, 1982 (IVPP V13459.10) from Longgu Cave, Jianshi, Hubei Province. D. Ailurarctos lufengensis Qiu and Qi, 1989 (IVPP V25032) from Lufeng, Yunnan Province, Latest Miocene. A1–D1, photographs; A2–D2, photographs with homologous structures indicated. Not to scale.
Fig. 4 in Morphological homology, evolution, and proposed nomenclature for bear dentition
Fig. 4. Occlusal views of P4 inner lobe structure of Musteloidea and Ursidae, showing the homology of inner lobe cusps. A. Meles leucurus Hodgson, 1847 (IOZ08129), Recent, China. B. Procyon lotor (Linnaeus, 1758) (IVPP OV1551), Recent, zoo specimen. C. Plithocyon teilhardi (Colbert, 1939) (AMNH FM26594) from the Tunggur Formation, Middle Miocene; the dashed line indicates that the protocone is absent in this species. D. Ailurarctos yuanmouensis Zong, 1996 (IVPP RV97001, cast) from Yuanmou, Yunnan Province. Not to scale.
Fig. 5 in Morphological homology, evolution, and proposed nomenclature for bear dentition
Fig. 5. Occlusal views of M1 homologous structures in cave bear (A, B) and giant panda (C, D) lineages. A. Ursavus tedfordi Qiu, Deng, and Wang, 2014 HMV1453) from Huaigou, Gansu Province, Late Miocene. B. Ursus deningeri Von Reichenau, 1904 (NMM1953/119, photo Jan Wagner) from Mosbach 2, Germany, early Middle Pleistocene. C. Ailuropoda melanoleuca (David, 1869) (IVPP V87025.109) from cave deposit of Guangxi Province, Late Pleistocene. D. Ailurarctos lufengensis Qiu and Qi, 1989 (IVPP V6892) from Lufeng, Yunnan Province, Latest Miocene. A1–D1, photographs; A2–D2, photographs with homologous structures indicated. Not to scale.
Fig. 3 in Morphological homology, evolution, and proposed nomenclature for bear dentition
Fig. 3. Occlusal views of P4 homologous structures in cave bear (A, B) and giant panda (C, D) lineages. A. Ursavus tedfordi Qiu, Deng, and Wang, 2014 (HMV1453) from Huaigou, Gansu Province, Late Miocene. B. Ursus deningeri Von Reichenau, 1904 (NMM1946/643, photo Jan Wagner) from Mosbach 2, Germany, early Middle Pleistocene. C. Ailuropoda sp. (uncatalogued) from southern China, Pleistocene. D. Ailurarctos lufengensis Qiu and Qi, 1989 (IVPP V6892) from Lufeng, Yunnan Province, Latest Miocene. A1–D1, photographs; A2–D2, photographs with homologous structures indicated. Not to scale.
Fig. 1 in Morphological homology, evolution, and proposed nomenclature for bear dentition
Fig. 1. Occlusal views of cheek teeth of studied bears. A. Ailuropoda sp. from Pleistocene of China. B. Ailurarctos lufengensis Qiu and Qi, 1989 (m1, IVPP V25032 and others IVPP V6892, reconstructed from CT scanning) from Lufeng, Yunnan Province, Latest Miocene. C. Ursus deningeri von Reichenau, 1904 (NMM1946/643, 1953/119, 1953/119, 1955/818, 1956/907, 1953/54, 1956/909; photo Jan Wagner) from Mosbach 2 locality, Germany, early Middle Pleistocene. D. Ursavus tedfordi Qiu, Deng, and Wang, 2014 (HMV1453) from Huaigou, Gansu Province, Late Miocene. For terminology and more details for dental character see Fig. 2. Not to scale. Abbreviations: RHyd3, medial ridge of protoconid; RMe3, medial ridge of metacone; RMed4, postero-medial ridge of metaconid; RPa1.2, medial branch of anterior ridge of paracone; RPad3, medial ridge of paraconid; RPrd2.2, medial branch of the posterior ridge of protoconid; RPrd3, postero-medial ridge of protoconid; RPrd4, postero-lateral ridge of protoconid.
Fig. 7 in Morphological homology, evolution, and proposed nomenclature for bear dentition
Fig. 7. Occlusal views of weakly separated RPa3 of Ursus deningeri Von Reichenau, 1904. A. NMP Rv21000, Koněpruské jeskyně. B. NMP Ra153, cave C718. C. NMP Ra2402, Chlum 1. D. NMP Rv20999, Koněpruské jeskyně. All from Czech Republic, early Middle Pleistocene. Photo Jan Wagner.
Fig. 2 in Morphological homology, evolution, and proposed nomenclature for bear dentition
Fig. 2. Illustrations of proposed terminology of teeth of giant panda Ailuropoda melanoleuca (A) and cave bear Ursus deningeri (B). Abbreviations: RHyd3, medial ridge of protoconid; RMed1, anterior ridge of metaconid; RMed2, posterior ridge of metaconid; RMed3, medial ridge of metaconid; RMed4, postero-medial ridge of metaconid; RPad1, anterior ridge of paraconid; RPa1.2, medial branch of anterior ridge of paracone; RPad1, anterior ridge of paraconid; RPad2, posterior ridge of paraconid; RPa3/RPad3, medial ridge of paracone/paraconid; RPrd1, anterior ridge of protoconid; RPrd2, posterior ridge of protoconid; RPrd2.2, medial branch of the posterior ridge of protoconid; RPrd3, postero-medial ridge of protoconid; RPrd4, postero-lateral ridge of protoconid.
Fig. 6 in Morphological homology, evolution, and proposed nomenclature for bear dentition
Fig. 6. Occlusal views of M2 homologous structures in cave bear (A, B) and giant panda (C, D) lineages. A. Ursavus tedfordi Qiu, Deng, and Wang, 2014 (HMV1453) from Huaigou, Gansu Province, Late Miocene. B. Ursus deningeri Von Reichenau, 1904 (NMM1953/119, photo Jan Wagner) from Mosbach 2, Germany, early Middle Pleistocene. C. Ailuropoda melanoleuca (David, 1869) (IVPP V87025.153) from cave deposit of Guangxi Province, Late Pleistocene. D. Ailurarctos lufengensis Qiu and Qi, 1989 (IVPP V6892) from Lufeng, Yunnan Province, Latest Miocene. A1–D1, photographs; A2–D2, photographs with homologous structures indicated. Not to scale.
Fig. 10 in Morphological homology, evolution, and proposed nomenclature for bear dentition
Fig. 10. Occlusal views of large entoconid 2 of Ailuropoda spp. A, B. Ailuropoda wulingshanensis Wang and Lin, 1982 from Longgudong Cave, Jiangshi, China, middle Early Pleistocene. A. IVPP V13459.11. B. IVPP V13459.266. C, D. Ailuropoda melanoleuca (David, 1869). C. IVPP V87025.246 from cave deposit, Guangxi Province, China, Late Pleistocene. D. IOZ 32752, Recent, Sichuan Province.
Fig. 14 in Morphological homology, evolution, and proposed nomenclature for bear dentition
Fig. 14. Serial homology of lower molars (occlusal views) of Ailuropoda sp. (A. IVPP V13459.10, B. IVPP V13459.91, C. IVPP V87025.362) from various fossil sites in southern China, Pleistocene. A1–C1, photographs; A2–C2, photographs with homologous structures indicated. Not to scale.
Fig. 9 in Morphological homology, evolution, and proposed nomenclature for bear dentition
Fig. 9. Illustration showing the evolution of m1 protoconid-metaconid ridges (in occlusal view). A. Stem Ursavus evolutionary grade Ursavus cf. brevirhinus (MNHN Ar2399, photo Jan Wagner) from Artenay, France. B. Early Ursus evolutionary grade Ursus malayanus (Raffles, 1821) (AMNH M19154) from Borneo, living. C. Derived Ursus evolutionary grade Ursus deningeri von Reichenau, 1904 (NMM1956/668; photo Jan Wagner, reversed) from Mosbach 2, Germany, early Middle Pleistocene. D. Ailuropoda evolutionary grade: Ailuropoda wulingshanensis Wang and Lin, 1982 (IVPP V13459.266) from Longgu Cave, Jianshi, China, middle Early Pleistocene. A1–D1, explanatory drawings; A2–D2, photographs. Not to scale.
Fig. 13 in Morphological homology, evolution, and proposed nomenclature for bear dentition
Fig. 13. Homologous structures of upper molars (occlusal views) of Ailuropoda melanoleuca (David, 1869) (A. IVPP V87025.109, B. IVPP V87025.153) from cave deposits of Guangxi Province, Late Pleistocene. Not to scale.
Fig. 12 in Morphological homology, evolution, and proposed nomenclature for bear dentition
Fig. 12. Occlusal views of m3 homologous structures in cave bear (A, B) and giant panda (C, D) lineages. A. Ursavus tedfordi Qiu, Deng, and Wang, 2014 (HMV1453) from Huaigou, Gansu Province, Late Miocene. B. Ursus deningeri von Reichenau, 1904 (NMM1953/54, photo Jan Wagner) from Mosbach 2, Germany, early Middle Pleistocene. C. Ailuropoda melanoleuca (David, 1869) (IVPP V87025.362) from cave deposit of Guangxi Province, Late Pleistocene. D. Ailurarctos lufengensis Qiu and Qi, 1989 (IVPP V6892) from Lufeng, Yunnan Province, Latest Miocene. A1–D1, photographs; A2–D2, photographs with homologous structures indicated. Not to scale.
Fig. 2 in Silurian retiolitid graptolites: Morphology and evolution
Fig. 2. Ancorae sleeve membranes in Silurian retiolitids. A, B. Spinograptus praerobustus Lenz and Kozłowska−Dawidziuk, 2002, specimens with preserved thecal and ancora sleeve membranes, Cornwallis Island, Arctic Canada, ABa3−98, 21 m, Colonograptus praedeubeli–C. deubeli Biozone, Wenlock. A. ZPAL G.37/1; A, stereopair of exterior proximal end showing ancora, well−preserved sicula, base of theca 11 (directly below sicula), double fusellar walls, thecal ap1 ertures and spino−reticular genicular processes; A2, reverse view showing ancora and ancora umbrella, and partially preserved thin fusellar layer that fills in space between the zigzag (bandaged) lists; A, Proximal−lateral stereopair view. B. Stereopair showing sicula, theca 12 on lower right side of sicula, aperture of 3 theca 12, inner and outer (ancora sleeve) fusellar layers, and thin nema, GSC 107928. C. Proximal end of Retiolites angustidens Elles and Wood, 1908 with broken ancora umbrella, NMW 91.52G.812, 500 m south of Stenkyrkehuks fyr, Gotland, Sweden, Lower Visby Marl, uppermost Llandovery; C1, ventro−lateral view; C2, view to the inside of rhabdosome showing sicula and thecal walls. Abbreviations: as, ancora sleeve; s, sicula; th, theca.
Linked collectors and determiners for: Species delimitation in the Gehyra nana (Squamata: Gekkonidae) complex: cryptic and divergent morphological evolution in the Australian Monsoonal Tropics, with the description of four new species.
Natural history specimen data linked to collectors and determiners held within, "Species delimitation in the Gehyra nana (Squamata: Gekkonidae) complex: cryptic and divergent morphological evolution in the Australian Monsoonal Tropics, with the description of four new species". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/5f73d28a-b9b5-4297-91c5-e14ce6f4db0b">https://bionomia.net/dataset/5f73d28a-b9b5-4297-91c5-e14ce6f4db0b</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/5f73d28a-b9b5-4297-91c5-e14ce6f4db0b">https://gbif.org/dataset/5f73d28a-b9b5-4297-91c5-e14ce6f4db0b</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: Impatiens smetsiana, another example of convergent evolution of flower morphology in Impatiens.
Natural history specimen data linked to collectors and determiners held within, "Impatiens smetsiana, another example of convergent evolution of flower morphology in Impatiens". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/12519b86-b0a3-4b15-b713-f447c1eae8ab">https://bionomia.net/dataset/12519b86-b0a3-4b15-b713-f447c1eae8ab</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/12519b86-b0a3-4b15-b713-f447c1eae8ab">https://gbif.org/dataset/12519b86-b0a3-4b15-b713-f447c1eae8ab</a>. Formatted as a Frictionless Data package.
FIG. 12 in Phylogenetic Relationships of New World Porcupines (Rodentia, Erethizontidae): Implications for Taxonomy, Morphological Evolution, and Biogeography
FIG. 12. Maximum-likelihood reconstruction of geographic range evolution for the erethizontid crown clade. See table 1 (footnote) for range descriptors and table 8 for divergence-date estimates.
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Allen Brain Atlas
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