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109 results for “Middle Permian”
Figure 7. Belebey vegrandis, SGU 104 in The cranial osteology of Belebey vegrandis (Parareptilia: Bolosauridae), from the Middle Permian of Russia, and its bearing on reptilian evolution
Figure 7. Belebey vegrandis, SGU 104/B-2021: skull and mandible in dorsal and lateral views. Scale bar = 1 cm; see Appendix 1 for abbreviations list.
Figure 10 in The cranial osteology of Belebey vegrandis (Parareptilia: Bolosauridae), from the Middle Permian of Russia, and its bearing on reptilian evolution
Figure 10. Cladogram showing patterns of bolosaurid relationships: bold numbers indicate bootstrap values; numbers in brackets are decay indices. A, Ankyramorpha; E, Eureptilia; P, Parareptilia; R, Reptilia.
Figure 9 in The cranial osteology of Belebey vegrandis (Parareptilia: Bolosauridae), from the Middle Permian of Russia, and its bearing on reptilian evolution
Figure 9. Belebey vegrandis: cranial reconstruction in palatal, dorsal, and lateral views, and reconstruction of the mandibles in occlusal view. The anterior opening in palatal view between the maxilla and the vomer, shown in grey, represents the primary internal naris, but the vomer is sutured to the palatines posteriorly, blocking off any possible air passage. It is unlikely that this opening was used for respiration. Instead, the small space between the posterior edge of the vomer and the anterior edge of the palatine, shown in black, represents a new opening (choana) for the passage of air between the nasal capsule and the throat.
Figure 2 in The cranial osteology of Belebey vegrandis (Parareptilia: Bolosauridae), from the Middle Permian of Russia, and its bearing on reptilian evolution
Figure 2. Skull of Belebey vegrandis, SGU 104/B-2020: antorbital region of the skull roof and the palate in both dorsal and ventral views. Scale bar = 1 cm; see Appendix 1 for abbreviations list.
Fig. 12 in Middle Permian ostracods (Crustacea) from the Guadalupe Mountains, West Texas, USA
Fig. 12. Circular diagrams of faunal composition of ostracod assemblages by number of species in the Roadian and Capitanian of the Guadalupe Mountains, West Texas, USA.
Fig. 5 in Middle Permian ostracods (Crustacea) from the Guadalupe Mountains, West Texas, USA
Fig. 5. Height/length scatter plots of species from the Middle Permian (Roadian, Capitanian) of the Guadalupe Mountains (West Texas, USA). A-1, A-2, A-3. Three last juvenile stages before adult.
Fig. 13 in Middle Permian ostracods (Crustacea) from the Guadalupe Mountains, West Texas, USA
Fig. 13. Stratigraphical (Permian only) and palaeogeographic ranges of ostracod species recorded outside of the USA in the Permian; stage durations not to scale. Abbreviations: Hung. = Hungary; Spitzb. = Spitzbergen.; Lith. = Lithuania; Thail. = Thailand; Austr. =Australia. Orange colour underlined = species found in this study; light grey = supposed occurences; dark grey = ocurrences of species in common with this study.
Fig. 3. A in Middle Permian ostracods (Crustacea) from the Guadalupe Mountains, West Texas, USA
Fig. 3. A. Location of Texas in the USA. B. Location of the studied sections along US Highway 62/180 in the Guadalupe Mountains, West Texas (Google Maps 2021). The orange area shows the Park and its boundary. The section MKSC1 is located within the park but its precise position cannot be disclosed because of park regulations.
Fig. 2 in Middle Permian ostracods (Crustacea) from the Guadalupe Mountains, West Texas, USA
Fig. 2. Stratigraphical units of the Guadalupian in the Delaware Basin area (modified from Wardlaw 2004) and position of the studied Quarry section (samples GM1-GM4) and MKCS1 section (samples GM5, GM6). Abbreviations: u.p. = upper part; Fm. = formation.
Fig. 11 in Middle Permian ostracods (Crustacea) from the Guadalupe Mountains, West Texas, USA
Fig. 11 (next page). SEM micrographs of ostracods from the Middle Permian (Roadian, Quarry section, samples GM1, GM2 and GM4; Capitanian, MKCS1 section, samples 4 (GM5) and 2 (GM6)) of the Guadalupe Mountains (West Texas, USA), except R and S from the late Capitanian, Middle Permian, Penglaitan section, Guangxi, South China (Zazzali 2016, unpublished PhD thesis). All specimens from A–Q are temporarily housed in the collections of the Muséum national d'histoire naturelle, Paris, France (MNHN), specimens R and S are housed in the collections of the Sorbonne University, Paris, France. A–B. Ceratobairdia cf. ventrocostata Wang, 1978. A. External view of a left valve, sample 4 (GM5) (MNHN.F.F63454). B. External view of a left valve, sample 2 (GM6) (MNHN.F.F63455). – C–G. Ceratobairdia pratti Forel sp. nov. C. Holotype, right lateral view of a carapace, sample GM1 (MNHN.F.F63456). D. Paratype, external view of a left valve, sample GM1 (MNHN.F.F63457). E. External view of a left valve, sample GM1 (MNHN.F.F63458). F. External view of a left valve, sample GM1 (MNHN.F.F63459). G. External view of a left valve, sample GM1 (MNHN.F.F63460). – H–I. Petasobairdia campbelli Chitnarin in Chitnarin et al., 2017. H. External view of a left valve, sample GM2 (MNHN.F.F63461). I. External view of a left valve, sample GM4 (MNHN.F.F63462). – J. Petasobairdia cf. bicornuta Chen in Chen & Shi, 1982, right lateral view of a carapace, sample 4 (GM5) (MNHN.F.F63463). – K. Petasobairdia? sp., external view of a right valve, sample 4 (GM5) (MNHN.F.F63464). – L. Microcheilinella postspinosa Chen, 1958, right lateral view of a carapace, sample 2 (GM6) (MNHN.F.F63465). – M. Microcheilinella sp. 15 in Zazzali et al. (2015), right lateral view of a carapace, sample 4 (GM5) (MNHN.F.F63466). – N–O. Microcheilinella sp. N. Right lateral view of a carapace, sample 2 (GM6) (MNHN.F.F63467). O. Right lateral view of a carapace, sample 4 (GM5) (MNHN.F.F63468). – P–Q. Denticupachydomella bellcanyonensis Forel sp. nov. P. Holotype, right lateral view of a carapace, sample 4 (GM5) (MNHN.F.F63469). Q. Paratype, external left of a right valve, sample 2 (GM6) (MNHN.F.F63470). – R–S. Microcheilinella sp. D in Zazzali (2016). R. Dorsal view of a carapace (P6M 3778). S. Right lateral view of a carapace (P6M 3779). Scale bars: 100 µm.
Fig. 9 in Middle Permian ostracods (Crustacea) from the Guadalupe Mountains, West Texas, USA
Fig. 9 (next page). SEM micrographs of ostracods from the Middle Permian (Roadian, Quarry section, samples GM1; Capitanian, MKCS1 section, samples 4 (GM5) and 2 (GM6)) of the Guadalupe Mountains (West Texas, USA). All specimens are temporarily housed in the collections of the Muséum national d'histoire naturelle, Paris, France (MNHN). A–C. Ceratobairdia mescaleroella Forel sp. nov. A. Paratype, A-1, external view of a right valve, sample 4 (GM5) (MNHN.F.F63437). B. External view of a left valve, A-2, sample 2 (GM6) (MNHN.F.F63438). C. External view of a right valve, A-2, sample 2 (GM6) (MNHN.F.F63439). – D–J. Ceratobairdia sexagintaduella Forel sp. nov. D. Holotype, right lateral view of a carapace, adult, sample GM1 (MNHN.F.F63440). E. Paratype, external view of a left valve, adult, sample GM1 (MNHN.F.F63441). F. External view of a left valve, A-1, sample GM1 (MNHN.F.F63442). G. Right lateral view of a carapace, A-2, sample GM1 (MNHN.F.F63443). H. External view of a left valve, A-2, sample GM1 (MNHN.F.F63444). I. Right lateral view of a carapace, A-3, sample GM1 (MNHN.F.F63445). J. External view of a left valve, A-3, sample GM1 (MNHN.F.F63446). – K–R. Ceratobairdia wordensis (Hamilton, 1942). K. External view of a left valve, adult, sample GM1 (MNHN.F.F63447). L. External view of a left valve, adult, sample GM1 (MNHN.F.F63448). M. External view of a left valve, A-2?, sample GM1 (MNHN.F.F63449). N. External view of a right valve, sample 4 (GM5) (MNHN.F.F63450). O. External view of a right valve, sample GM1 (MNHN.F.F63497). P. External view of a right valve, sample GM1 (MNHN.F.F63451). Q. External view of a left valve, sample GM1 (MNHN.F.F63452). R. Right lateral view of a carapace, sample 4 (GM5) (MNHN.F.F63453). Scale bars: 100 µm
Fig. 7 in Middle Permian ostracods (Crustacea) from the Guadalupe Mountains, West Texas, USA
Fig. 7 (next page). SEM micrographs of ostracods from the Middle Permian (Roadian, Quarry section, samples GM1 and GM2; Capitanian, MKCS1 section, samples 4 (GM5) and 2 (GM6)) of the Guadalupe Mountains (West Texas, USA). All specimens are temporarily housed in the collections of the Muséum national d'histoire naturelle, Paris, France (MNHN). A. Libumella cf. athabascensis Green, 1963, left lateral view of a carapace, sample GM1 (MNHN.F.F63401). – B. Fellerites? sp., external view of a right valve, sample GM1 (MNHN.F.F63402). – C. Paraparchites texanus Delo, 1930, right lateral view of a carapace, sample 4 (GM5) (MNHN.F.F63403). – D–H. Paraparchites pecosensis Crasquin sp. nov. D. Holotype, right lateral view of a carapace, sample GM1 (MNHN.F.F63404). E. Right lateral view of a carapace, sample GM1 (MNHN.F.F63405). F. External view of a right valve, sample 2 (GM6) (MNHN.F.F63406). G. External view of a right valve, sample GM1 (MNHN.F.F63407). H. Paratype, left lateral view of a carapace, sample GM1 (MNHN.F.F63408). – I. Acratia sp., right lateral view of a carapace, sample GM2 (MNHN.F.F63409). – J. Acratia cf. sinuata (Kozur, 1991), external view of a left valve, sample GM1 (MNHN.F.F63410). – K. Acratia sinuata (Kozur, 1991), external view of a left valve, sample GM1 (MNHN.F.F63411). – L–M. Bairdia radlerae Kellett, 1934. L. External view of a left valve, sample GM1 (MNHN.F.F63412). M. Right lateral view of a carapace, sample GM1 (MNHN.F.F63413). – N. Bairdia rhomboidalis Hamilton, 1942, right lateral view of a carapace, sample 2 (GM6) (MNHN.F.F63414). – O. Bairdia subfusiformis Hamilton, 1942, external view of a left valve, sample GM1 (MNHN.F.F63415). – P–R. Bairdia elcapitanensis Forel sp. nov. P. Right lateral view of a carapace, sample GM1 (MNHN.F.F63416). Q. Right lateral view of a carapace, sample GM1 (MNHN.F.F63417). R. Paratype, external view of a right valve, sample GM1 (MNHN.F.F63418). Scale bars: 100 µm.
Fig. 6 in Middle Permian ostracods (Crustacea) from the Guadalupe Mountains, West Texas, USA
Fig. 6 (next page). SEM micrographs of ostracods from the Middle Permian (Roadian, Quarry section, samples GM1, GM2, and GM4; Capitanian, MKCS1 section, samples 4 (GM5) and 2 (GM6)) of the Guadalupe Mountains (West Texas, USA). All specimens are temporarily housed in the collections of the Muséum national d'histoire naturelle, Paris, France (MNHN). A–B. Aurikirkbya guadalupensis Crasquin sp. nov. A. Holotype, left lateral view of a carapace, sample GM2 (MNHN.F.F63383). B. Paratype, left lateral view of a carapace, sample GM1 (MNHN.F.F63384). – C, E. Aurikirkbya wordensis (Hamilton, 1942). C. External view of a left valve, sample 2 (GM6) (MNHN.F.F63385). E. External view of a left valve, sample GM4 (MNHN.F.F63387). – D. Kirkbyella (Berdanella) cf. quadrata Croneis & Gutke, 1939, external view of a right valve, sample 4 (GM5) (MNHN.F.F63386). – F–H. Roundyella lebaensis Krömmelbein, 1958. F. External view of a left valve, sample GM4 (MNHN.F.F63388). G. External view of a right valve, sample GM4 (MNHN.F.F63389). H. External view of a right valve, sample GM1 (MNHN.F.F63390). – I–L. Hollinella (Hollinella) williamsranchensis Crasquin sp. nov. I. Holotype, external view of a right valve, sample GM1 (MNHN.F.F63391). J. External view of a right valve, sample GM1 (MNHN.F.F63392). K. Paratype, external view of a left valve, sample GM1 (MNHN.F.F63393). L. External view of a left valve, sample GM4 (MNHN.F.F63394). – M. Glyptopleura sp., external view of a right valve, sample GM1 (MNHN.F.F63395). – N–P. Geisina culbersonensis Crasquin sp. nov. N. Holotype, external view of a right valve, sample GM1 (MNHN.F.F63396). O. Paratype, external view of a right valve, sample GM1 (MNHN.F.F63397). P. External view of a left valve, sample GM2 (MNHN.F.F63398). – Q–R. Miltonella cf. shupei Sohn, 1950. Q. External view of a left valve, sample 4 (GM5) (MNHN.F.F63399). R. External view of a left valve, sample 4 (GM5) (MNHN.F.F63400). Scale bars: 100 µm.
Fig. 4 in Middle Permian ostracods (Crustacea) from the Guadalupe Mountains, West Texas, USA
Fig. 4 (next page). SEM micrographs of ostracods from the Middle Permian (Roadian, Quarry section, samples GM1, GM2, and GM4; Capitanian, MKCS1 section, samples 4 (GM5) and sample 2 (GM6)) of the Guadalupe Mountains (West Texas, USA). All specimens are temporarily housed in the collections of the Muséum national d'histoire naturelle, Paris, France (MNHN). A–C. Healdia mckittrickensis Crasquin sp. nov. A. Holotype, right lateral view of a carapace, sample 4 (GM5) (MNHN.F.F63365). B. Paratype, right lateral view of a carapace, sample GM1 (MNHN.F.F63366). C. External view of a right valve, sample 4 (GM5) (MNHN.F.F63367). – D–F. Healdia cutoffella Crasquin sp. nov. D. Holotype, right lateral view of a carapace, sample GM4 (MNHN.F.F63368). E. Paratype, external view of a left valve, sample GM1 (MNHN.F.F63369). F. External view of a left valve, sample GM4 (MNHN.F.F63370). –G –I. Sulcella mesopermiana Kozur, 1991. G. External view of a left valve, sample GM1 (MNHN.F.F63371). H. Left lateral view of a carapace, sample 2 (GM6) (MNHN.F.F63372). I. External view of a left valve, sample GM2 (MNHN.F.F63373). – J. Kirkbyidae gen. et sp. indet., right lateral view of a carapace, sample 4 (GM5) (MNHN.F.F63374). – K–L. Amphissites centronotus (Ulrich & Bassler, 1906). K. External view of a right valve, sample GM1 (MNHN.F.F63375). L. External view of a right valve, sample GM1 (MNHN.F.F63376). – M. Polytylites? sp., external view of a left valve, sample GM4 (MNHN.F.F63377). – N. Kindlella fissiloba Sohn, 1954, external view of a right valve, sample GM1 (MNHN.F.F63378). – O. Kindlella sp., external view of a left valve, sample GM1 (MNHN.F.F63379). – P–Q. Kindlella bellsundi Olempska & Błaszyk, 1996. P. External view of a right valve, sample 4 (GM5) (MNHN.F.F63380). Q. External view of a right valve, sample 4 (GM5) (MNHN.F.F63381) – R. Kirkbya sp., external view of a right valve, sample GM1 (MNHN.F.F63382). Scale bars: 100 µm.
Fig. 8 in Middle Permian ostracods (Crustacea) from the Guadalupe Mountains, West Texas, USA
Fig. 8 (next page). SEM micrographs of ostracods from the Middle Permian (Roadian, Quarry section, samples GM1 and GM4; Capitanian, MKCS1 section, samples 4 (GM5) and 2 (GM6)) of the Guadalupe Mountains (West Texas, USA). All specimens are temporarily housed in the collections of the Muséum national d'histoire naturelle, Paris, France (MNHN). A–B. Bairdia elcapitanensis Forel sp. nov. A. External view of a right valve, sample GM1 (MNHN.F.F63419). B. Holotype, external view of a right valve, sample GM1 (MNHN.F.F63420). – C. Bairdia cf. postacuta Chen, 1958, right lateral view of a carapace, sample GM1 (MNHN.F.F63421). – D. Bairdia sp. A, right lateral view of a carapace, sample GM1 (MNHN.F.F63422). – E. Bairdia sp. B, right lateral view of a carapace, sample GM1 (MNHN.F.F63423). – F. Bairdia sp. C, right lateral view of a carapace, sample GM1 (MNHN.F.F63424) – G. Bairdiacypris sp. B, right lateral view of a carapace, sample 2 (GM6) (MNHN.F.F63425). – H. Bairdiacypris sp. C, right lateral view of a carapace, sample GM1 (MNHN.F.F63426). – I–J. Fabalicypris acetalata (Coryell & Billings, 1932). I. Right lateral view of a carapace, sample GM1 (MNHN.F.F63427). J. External right of a right valve, sample GM4 (MNHN.F.F63428). – K. Fabalicypris glennensis (Harlton, 1927), right lateral view of a carapace, sample 4 (GM5) (MNHN.F.F63429). – L. Fabalicypris sp., right lateral view of a carapace, sample GM4 (MNHN.F.F63430). – M–N. Orthobairdia texana (Harlton, 1927). M. External right of a right valve, sample 4 (GM5) (MNHN.F.F63431). N. External view of a right valve, sample GM1 (MNHN.F.F63432). – O–R. Ceratobairdia mescaleroella Forel sp. nov. O. Holotype, adult, external view of a left valve, sample 4 (GM5) (MNHN.F.F63433). P. A-1, external view of a left valve, sample 4 (GM5) (MNHN.F.F63434). Q. Paratype, A-1, external view of a left valve, sample 4 (GM5) (MNHN.F.F63435). R. A-1, external view of a left valve, sample 4 (GM5) (MNHN.F.F63436). Scale bars: 100 µm.
Figs 1, 2 in New and little known species of the genus Permosialis (Insecta: Palaeomanteida: Permosialidae) from the Middle Permian of Russia
Figs 1, 2. Forewing of Permosialis ualentovae Novokshonov et Zhuzhgova, 2004, holotype PIN, No 1366/349. 1 – general appearance; 2 – reconstruction.
Figs 3, 4 in New and little known species of the genus Permosialis (Insecta: Palaeomanteida: Permosialidae) from the Middle Permian of Russia
Figs 3, 4. Forewing of Permosialis belebei Aristov et Rasnitsyn, sp. n. 3 – holotype PIN, No 1366/379, general appearance; 4 – paratype PIN, No 1366/463, general appearance.
Figs 7, 8 in New and little known species of the genus Permosialis (Insecta: Palaeomanteida: Permosialidae) from the Middle Permian of Russia
Figs 7, 8. Forewing of Permosialis bayda Aristov et Rasnitsyn, sp. n., holotype PIN, No 3701/2. 7 – general appearance; 8 – reconstruction.
Fig. 7 in On a new stereospondylomorph temnospondyl from the Middle-Late Permian of Southern Brazil
Fig. 7. Strict consensus tree resulting from the reduced analysis of Schoch's (2013) matrix.
Figs 7, 8 in New and little known species of the genus Permosialis (Insecta: Palaeomanteida: Permosialidae) from the Middle Permian of Russia
Figs 7, 8. Forewing of Permosialis bayda Aristov et Rasnitsyn, sp. n., holotype PIN, No
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