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Fig. 5 in Bone histology of the graviportal dinocephalian therapsid Jonkeria from the middle Permian Tapinocephalus Assemblage Zone of the Karoo Basin of South Africa

Fig. 5. Transverse section of the rib (BP/1/5409) of cf. Jonkeria sp. from the middle Permian Tapinocephalus Assemblage Zone of the Karoo Basin of South Africa. A1, overall view of the rib showing the highly cancellous nature of the cortex; note that only the top area of the section preserves the compact cortical bone tissue. A2, A3, detail showing slight change in the tissue type around the lines of arrested growths but overall matrix is woven; note: numbers associated with arrowheads indicate lines of arrested growth (LAGs) in ascending order from the medullary region to periosteal periphery. A4, detail showing enlarged erosional cavities (inset). A5, detail showing fibrolamellar bone between lines of arrested growth. A6, detail showing dense woven matrix; note the change in the density of osteocyte lacunae around the LAG (number associated with arrowhead indicates LAG). Abbreviation: wb, woven bone. Photographs under ordinary light (A1, A3, A4, A5), and cross-polarized light with lambda compensator (A2, A6).

Fig. 2 in Bone histology of the graviportal dinocephalian therapsid Jonkeria from the middle Permian Tapinocephalus Assemblage Zone of the Karoo Basin of South Africa

Fig. 2. Transverse sections of the radius (SAM-PK-12233b) of Jonkeria parva (Boonstra, 1955) from the middle Permian Tapinocephalus Assemblage Zone of the Karoo Basin of South Africa. A1, diaphyseal cross-section showing highly vascularized fibrolamellar bone tissue in the outer cortex and the medullary cavity filled with bony trabeculae; note: the numerous enlarged resorption cavities in the perimedullary region. A2, detail showing an annulus with lamellar bone (arrowhead). A3, detail showing extension of an annulus in the cortex (arrowhead). B1, fibrolamellar bone tissue with woven matrix in the outer cortex showing circumferential and reticular organization of the vascular canals; B2, B3, detail showing the change to a reticular organization of the vascular canals. Abbreviations: mr, medullary region; po, primary osteon; tb, trabeculae; wb, woven bone. Photographs under cross-polarized light with lambda compensator (A1–A3, B1, B2) and ordinary light (B3).

Fig. 4 in Bone histology of the graviportal dinocephalian therapsid Jonkeria from the middle Permian Tapinocephalus Assemblage Zone of the Karoo Basin of South Africa

Fig. 4. Thin section of a core of the humerus (SAM-PK-11994) of Jonkeria ingens (Broom, 1923) from the middle Permian Tapinocephalus Assemblage Zone of the Karoo Basin of South Africa. A1, overall view of humerus showing laminar fibrolamellar bone in the outer cortex and the increasingly cancellous nature of the bone towards the medullary cavity; note: numerous enlarged resorption cavities in the perimedullary cavity, and the layer of indurated sediments at the top of the section. A2, A3, highly vascularized laminar fibrolamellar bone. A4, A5, details showing a few isolated simple longitudinal vascular canals and primary osteons. A6, A7, detail showing large resorption cavities lined by narrow deposit of lamellar bone (arrows). Abbreviations: po, primary osteons; rc, resorption cavity; wb, woven bone. Photographs under ordinary light (A1, A2, A4, A6), and cross-polarized light with lambda compensator (A3, A5, A7).

Fig. 3 in Bone histology of the graviportal dinocephalian therapsid Jonkeria from the middle Permian Tapinocephalus Assemblage Zone of the Karoo Basin of South Africa

Fig. 3. Transverse sections of the tarsal (SAM-PK-12233c) of Jonkeria parva (Boonstra, 1955) from the middle Permian Tapinocephalus Assemblage Zone of the Karoo Basin of South Africa. A1, diaphyseal cross-section showing highly vascularized fibrolamellar bone tissue in the outer cortex and cancellous bone tissue with extensively developed bony trabeculae in the medullary cavity; note: numerous enlarged resorption cavities in the perimedullary region. A2, detail showing highly vascularized reticular FLB. A3, A4, detail showing simple longitudinal vascular canals. A5, A6, detail showing reticular vascular canals. Photographs under cross-polarized light with lambda compensator (A1–A3, A5) and ordinary light (A4, A6).

Fig. 6 in Bone histology of the graviportal dinocephalian therapsid Jonkeria from the middle Permian Tapinocephalus Assemblage Zone of the Karoo Basin of South Africa

Fig. 6. Longitudinal section of the rib (BP/1/5409) of cf. Jonkeria sp. from the middle Permian Tapinocephalus Assemblage Zone of the Karoo Basin of South Africa. A1, overall view of the rib showing highly secondarily remodeled cortex; note: numerous enlarged resorption cavities. A2, detail showing woven bone and enlarged resorption spaces. Photographs under ordinary light (A1) and cross-polarized light with lambda compensator (A2).

Fig. 5 in A new euselachian shark from the early Permian of the Middle Urals, Russia

Fig. 5. Tooth (PM SPU 81-2) of the euselachian shark Artiodus prominens Ivanov and Duffin gen. et sp. nov. from the Artinskian (Early Permian) of Krasnoufimskie Klyuchiki quarry (Middle Urals, Russia). Micro-CT virtual model in labial (A), lingual (B), and basal (D) views. Virtual sections: longitudinal section of the tooth (C); section series of the base (F–H). Virtual model of the tooth in basal view with transparent dental tissues (E). Scale bars 500 μm.

Fig. 3 in A new euselachian shark from the early Permian of the Middle Urals, Russia

Fig. 3. Teeth of the euselachian shark Artiodus prominens Ivanov and Duffin gen. et sp. nov. from the Artinskian (Early Permian) of Krasnoufimskie Klyuchiki quarry (Middle Urals, Russia). A. NHMUK PV P65426. B. NHMUK PV P65452. C. NHMUK PV P65427. D. NHMUK PV P65450. E. NHMUK PV P65451. F. NHMUK PV P65455. G. NHMUK PV P65457. H. NHMUK PV P65456. I. NHMUK PV P65458. J. NHMUK PV P65454. K. NHMUK PV P65453. L. NHMUK PV P65459. A–F, labial views; G–L, lingual views. Scale bars 1 mm.

Fig. 2 in A new euselachian shark from the early Permian of the Middle Urals, Russia

Fig. 2. Teeth of the euselachian shark Artiodus prominens Ivanov and Duffin gen. et sp. nov. from the Artinskian (Early Permian) of Krasnoufimskie Klyuchiki quarry (Middle Urals, Russia). A. PM SPU 81-1, holotype, lingual (A1) and labial (A2) views. B. PM SPU 81-2, labio-basal view. C. PM SPU 81-3, occlusal view. D. PM SPU 81-4, labio-basal (D1) and lingual (D2) views. E. PM SPU 81-5, lingual view. F. PM SPU 81-6, labio-basal view. G. PM SPU 81-7, lingual view. H. PM SPU 81-8, lingual view. I. PM SPU 81-9, lingual view. J. PM SPU 81-10, occlusal view. K. PM SPU 81-11, occlusal (K1) and labial (K2) views. L. PM SPU 81-12, labio-basal view. Scale bars 1 mm. All SEM images.

Fig. 1 in A new euselachian shark from the early Permian of the Middle Urals, Russia

Fig. 1. Maps of Ural (A) and Krasnoufimsk area (B; source of the map from https://yandex.ru/maps/) showing the location of Krasnoufimskie Klyuchiki quarry.

opencc-by-4.0Mar 2012View details →

Fig. 1 in A new basal osmylid neuropteran insect from the Middle Jurassic of China linking Osmylidae to the Permian-Triassic Archeosmylidae

Fig. 1. Forewing of osmylid neuropteran insect Archaeosmylidia fusca gen. et sp. nov. (Osmylidae) from the Jiulongshan Formation of Daohugou, China. Holotype CNU−NEU−NN2009103. Photograph (A) and line drawing of venation (B). Scale bars 5 mm. Abbreviations: 1A, 2A, anal veins; C, costa; CuA, anterior cubitus; CuP, posterior cubitus; MA and MP, anterior and posterior branches of media (M); ng, nygma; R1, first branch of radius (R); Rs, radial sector; Sc, subcosta.

Fig. 6 in On a new stereospondylomorph temnospondyl from the Middle-Late Permian of Southern Brazil

Fig. 6. Postcranial elements of stereospondylomorph temnospondyl Parapytanga catarinensis gen. et sp. nov. (holotype, UFRGS-PV-0355-P) from the Santa Catarina State (Brazil), Middle–Upper Permian. Photos of the right femur in dorsal (A), ventral (B), and distal (C) views. Photo (D) and interpretative drawing (E) of the ventral scutes. The arrow indicates the internal articular process of a scute.

Fig. 3 in On a new stereospondylomorph temnospondyl from the Middle-Late Permian of Southern Brazil

Fig. 3. Stereospondylomorph temnospondyl Parapytanga catarinensis gen. et sp. nov. (holotype, UFRGS-PV-0355-P) from the Santa Catarina State (Brazil), Middle–Upper Permian. Side of the sample containing the skull in palatal view (elements from palate and braincase); stapes; right hemimandible in labial view; fragments of vertebrae and ribs. Photo (A) and interpretative drawing (B).

Fig. 2 in On a new stereospondylomorph temnospondyl from the Middle-Late Permian of Southern Brazil

Fig. 2. Preserved elements of Parapytanga catarinensis gen. et sp. nov. (holotype, UFRGS-PV-0355-P) from the Santa Catarina State (Brazil), Middle–Upper Permian.

Fig. 1. A in On a new stereospondylomorph temnospondyl from the Middle-Late Permian of Southern Brazil

Fig. 1. A. Geographic map with the location of the study outcrop in Santa Catarina State within Paraná Basin, Brazil. B. Profile of the study outcrop with fossiliferous levels. C. Photo of the outcrop.

Fig. 5 in On a new stereospondylomorph temnospondyl from the Middle-Late Permian of Southern Brazil

Fig. 5. Cranial elements of stereospondylomorph temnospondyl Parapytanga catarinensis gen. et sp. nov. (holotype, UFRGS-PV-0355-P) from the Santa Catarina State (Brazil), Middle–Upper Permian. Photo (A) and interpretative drawing (B) of the skull in occipital view. C. Photo of the left stapes in postero-medial view.

Fig. 8 in On a new stereospondylomorph temnospondyl from the Middle-Late Permian of Southern Brazil

Fig. 8. Comparison between the posterior part of the skull of temnospondyl Australerpeton cosgriffi, (Barberena, 1998) (UFRGS PV 0229 P in ventral view) from the Paraná State (Brazil), Upper Permian (A) and the stereospondylomorph temnospondyl Parapytanga catarinensis gen. et sp. nov. (holotype, UFRGS- PV-0355-P in ventral view) from the Santa Catarina State (Brazil), Middle–Upper Permian (B). Photos (A1, B1) and interpretative drawings (A2, B2).

Fig. 4 in On a new stereospondylomorph temnospondyl from the Middle-Late Permian of Southern Brazil

Fig. 4. Stereospondylomorph temnospondyl Parapytanga catarinensis gen. et sp. nov. (holotype, UFRGS-PV-0355-P) from the Santa Catarina State Brazil), Middle–Upper Permian. Side of the sample containing skull elements in dorsal view; interclavicle and right clavicle in ventral view; right scapulocoracoid and cleithrum in lateral and medial view, respectively. Photo (A) and interpretative drawing (B).

opencc-by-4.0Dec 2016View details →

Text-fig. 7. Stratigraphic ranges of selected, biostratigraphically relevant taxa from Late Pennsylvanian and Early Permian of Saar-Nahe Basin. Based on data from Kerp and Fichter (1985), Lausberg et al. (2003), Schindler et al. (2004), Kerp et al. (2007a, b), Cleal (2008) and Uhl (2008). Absolute age of 300.0 ± 1.2 Ma in middle of Remigiusberg Formation based on Ar-Ar dating of sanidins published by Burger et al. (1997). in New Data On The Macroflora Of The Basal Rotliegend Group (Remigiusberg Formation; Gzhelian) In The Saar-Nahe Basin (Sw-Germany)

Text-fig. 7. Stratigraphic ranges of selected, biostratigraphically relevant taxa from Late Pennsylvanian and Early Permian of Saar-Nahe Basin. Based on data from Kerp and Fichter (1985), Lausberg et al. (2003), Schindler et al. (2004), Kerp et al. (2007a, b), Cleal (2008) and Uhl (2008). Absolute age of 300.0 ± 1.2 Ma in middle of Remigiusberg Formation based on Ar-Ar dating of sanidins published by Burger et al. (1997).

opencc-by-4.0Sep 2007View details →

Figure 5. 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 5. Belebey vegrandis, SGU 104/B-2020: right mandible in medial, lateral and occlusal views. Scale bar = 1 cm; see Appendix 1 for abbreviations list.