Find research datasets worth reusing

Fig. 7. DPC 24108A in The oldest and youngest records of afrosoricid placentals from the Fayum Depression of northern Egypt

Fig. 7. DPC 24108A, right distal humerus attributed to the afrosoricid placental Dilambdogale gheerbranti gen. et sp. nov., from the earliest late Eocene (earliest Priabonian) locality BQ−2, Birket Qarun Formation, Fayum Depression, northern Egypt.

Fig. 6 in The oldest and youngest records of afrosoricid placentals from the Fayum Depression of northern Egypt

Fig. 6. Upper dentition of the afrosoricid placental Dilambdogale gheerbranti gen. et sp. nov. from the earliest late Eocene (earliest Priabonian) locality BQ−2, Birket Qarun Formation, Fayum Depression, northern Egypt. A. DPC 23307A, right M3, in occlusal (A1) and distal (A2) views. B. DPC 23306E, left M2, in occlusal view. C. DPC 23780C, left M2, in occlusal (C1) and buccal (C2) views. D. DPC 23784D, right M1, in occlusal (D1) and mesial (D2) views. E. DPC 24001A, left P4, in distal (E1) and occlusal (E2) views.

Fig. 5 in The oldest and youngest records of afrosoricid placentals from the Fayum Depression of northern Egypt

Fig. 5. Buccal view of DPC 23783B, a left mandibular fragment of the afrosoricid placental Dilambdogale gheerbranti gen. et sp. nov., from the earliest late Eocene (earliest Priabonian) locality BQ−2, Birket Qarun Formation, Fayum Depression, northern Egypt, preserving m2–3.

Fig. 3 in The oldest and youngest records of afrosoricid placentals from the Fayum Depression of northern Egypt

Fig. 3. Holotype maxilla of the afrosoricid placental Dilambdogale gheerbranti gen. et sp. nov., from the earliest late Eocene (earliest Priabonian) locality BQ−2, Birket Qarun Formation, Fayum Depression, northern Egypt. A. Occlusal view of CGM 66005, left maxillary fragment preserving the alveolus for the distal root of P3, crowns of P4–M1, and partial alveoli for the mesiobuccal and lingual roots of M2. B. Line drawing of CGM 66005 in lateral view, showing the position of the infraorbital foramen and the orbital rim.

Fig. 2 in The oldest and youngest records of afrosoricid placentals from the Fayum Depression of northern Egypt

Fig. 2. Stratigraphic placement of afrosoricid−bearing localities in the later Paleogene rocks exposed in the Fayum area, and proposed correlation of local polarity zones to the Geomagnetic Polarity Timescale (GPTS), following Seiffert (2006) and Seiffert et al. (2008). Locality BQ−2, which yielded the remains of Dilambdogale gheerbranti described here, is estimated to be ~37 Ma; Quarry I, which produced remains of Qatranilestes oligocaenus, is estimated to be ~29.5–30 Ma.

Fig. 4 in The oldest and youngest records of afrosoricid placentals from the Fayum Depression of northern Egypt

Fig. 4. Lower dentition of the afrosoricid placental Dilambdogale gheerbranti gen. et sp. nov. from the earliest late Eocene (earliest Priabonian) locality BQ−2, Birket Qarun Formation, Fayum Depression, northern Egypt. A. Oblique lingual view of DPC 24081B, a right mandibular fragment preserving the alveolus for the lower canine and the crowns of p2–4. B. DPC 24103A, right mandibular fragment preserving the worn crowns of m1–3 in oblique lingual (B1) and occlusal (B2) views. C. DPC 23983C, a right mandibular fragment preserving p4–m1 in occlusal (C1) and lingual (C2) views. D. DPC 23783B, a left mandibular fragment preserving m2–3 in occlusal (D1) and lingual (D2) views. E. Occlusal view of DPC 23736A, a right mandibular fragment preserving the talonid of p4 and the complete crown of m1. F. DPC 23307H, a left m2 in occlusal view.

Fig. 1 in The oldest and youngest records of afrosoricid placentals from the Fayum Depression of northern Egypt

Fig. 1. Relationships of extant placental mammalian orders, based on the analysis of Roca et al. (2004), with zalambdomorph groups (Afrosoricida and Solenodontidae) highlighted.

opencc-by-4.0Oct 2016View details →

FIGURE 2 in Deciduous dentition and dental eruption sequence of Bothriogenys fraasi (Anthracotheriidae, Artiodactyla) from the Fayum Depression, Egypt

FIGURE 2. Dental terminology used to describe features of the deciduous premolars of Bothriogenys fraasi, following Bärmann and Rössner (2011).

opencc-by-4.0Oct 2016View details →

FIGURE 1. 1 in Deciduous dentition and dental eruption sequence of Bothriogenys fraasi (Anthracotheriidae, Artiodactyla) from the Fayum Depression, Egypt

FIGURE 1. 1, location map of the Jebel Qatrani area, Fayum Depression. 2, stratigraphic positions and age estimates for major mammal-bearing fossil localities, following Seiffert (2006), EOB is abbreviation for Eocene Oligocene Boundary. 3, map of Jebel Qatrani area, showing different rock units, common landmarks and the approximate position of anthracothere-bearing fossil localities.

opencc-zeroOct 2024View details →

Inbreeding depression, functional traits and phenotypic plasticity in an endangered tree species from Congo basin with a mixed mating system

<h3>Inbreeding depression, functional traits and phenotypic plasticity in an endangered tree species from Congo basin with a mixed mating system</h3> <h1><a name="_Hlk166486742"></a>Abstract</h1> 1. Most tree species can suffer from inbreeding depression (ID), which they escape by reproducing predominantly through outcrossing. A remarkable exception is Pericopsis elata, an African timber species naturally producing 54% of self-fertilized seeds in the eastern Congo Basin. This species is highly logged and suffers from a deficit of natural regeneration, so that silviculture is needed for its sustainable management. While selecting good genetic material can increase the value of plantations, we lack fundamental biological knowledge on the effect of inbreeding and competition on growth potential, variability in leaf traits and phenotypic plasticity. We hypothesize that ID in P. elata could result from the expression of deleterious mutations affecting functional traits, or from a reduction of adaptive phenotypic plasticity in inbred genotypes. 2. To test our hypotheses, 540 P. elata seedlings were monitored for 4 years in a Nelder-type device located in the DRC, in which trees were planted along concentric circles to generate a density gradient. Nine leaf morphological traits (including specific leaf area, stomata density and size), eight leaf chemical traits, diameter, and total height were measured regularly, while paternity analyses allowed distinguishing inbred and outbred plants. To explain the observed ID on growth, we tested whether inbreeding affected leaf traits and/or their plasticity expressed across years, across the density gradient or across sunlight exposure. 3. Outbred plants grew faster than inbred ones, demonstrating ID for each level of competition. Despite the significant correlation found between specific leaf area and growth, and the impact of planting density, plant age, and leaf exposure to sunlight on multiple traits, mean leaf trait values did not differ according to inbreeding. However, a few leaf traits (chlorophyl content, maximum stomatal water vapor conductance, and leaf fresh mass) showed significantly higher plasticity in outbred than inbred plants. 4. Synthesis: the observed ID on growth was not explained by a direct effect of inbreeding on the mean values of functional traits but possibly by a reduction of phenotypic plasticity with inbreeding. Additional studies on the interplay between ID, functional traits and plasticity should be conducted at the intra-specific level to identify general patterns. Key-words : Inbreeding depression, phenotypic plasticity, silviculture, functionals traits, Pericopsis elata, mating system, Nelder device.

opencc-by-4.0Jul 2021View details →

Prolonged Stress Causes Depression in Frontline Workers Fac-ing the COVID-19 Pandemic

Data used for the study "Prolonged Stress Causes Depression in Frontline Workers Fac-ing the COVID-19 Pandemic" published on IJERPH

FIGURE 4 in A New Family of Large Omnivorous Bats (Mammalia, Chiroptera) from the Late Eocene of the Fayum Depression, Egypt, with Comments on Use of the Name "Eochiroptera"

FIGURE 4. Photograph of the holotype of Aegyptonycteris knightae (CGM 83740) in occlusal view. Scale = 4 mm.

FIGURE 2 in A New Family of Large Omnivorous Bats (Mammalia, Chiroptera) from the Late Eocene of the Fayum Depression, Egypt, with Comments on Use of the Name "Eochiroptera"

FIGURE 2. Fayum stratigraphic sequence and the distribution of bat taxa from quarries BQ-2, L-41, and I.

FIGURE 1 in A New Family of Large Omnivorous Bats (Mammalia, Chiroptera) from the Late Eocene of the Fayum Depression, Egypt, with Comments on Use of the Name "Eochiroptera"

FIGURE 1. Maps showing the location of the Fayum Depression in Egypt (left and the geographic position of the BQ-2 Quarry (right) within the Birket Qarun Formation (modified from Sallam et al., 2011).

FIGURE 6 in A New Family of Large Omnivorous Bats (Mammalia, Chiroptera) from the Late Eocene of the Fayum Depression, Egypt, with Comments on Use of the Name "Eochiroptera"

FIGURE 6. Bivariate plot of length vs. width of M2 in selected large extant and extinct bats with tribosphenic dentitions (see table 3 for body mass in living taxa). Extant bats include: 1, Saccolaimus peli (Emballonuridae); 2, Taphozous nudiventris (Emballonuridae); 3, Hipposideros commersoni (Hipposideridae); 4, Eumops dabbenei (Molossidae); 5, Hesperoptenus tickelli (Vespertilionidae); 6, Artibeus fimbriatus (Phyllostomidae); 7, Myotis (Vespertilionidae); 8, Vampyrum spectrum (Phyllostomidae); 9, Phyllostomus hastatus (Phyllostomidae); 10, Megaderma lyra (Megadermatidae); 11, Eumops perotis (Molossidae); 12, Macroderma gigas (Megadermatidae).

opencc-by-4.0Nov 2019View details →

Text-fig. 30. Scanning electron microscope (SEM) images of monocolpate pollen of Dejaxia brevicolpites gen. et sp. nov. from a pollen clump; Torres Vedras locality, Portugal. a) Holotype; pollen clump (possible single pollen sac) that yielded the pollen in this Textfigure; b, c) Group of almost spherical pollen grains showing the irregularly undulating psilate tectum and abundant orbicules; d–g) Pollen grains showing the short colpi with a granular aperture membrane (d, f) and the irregularly undulating psilate tectum with scattered small perforations; note abundant orbicules (g); h) Pollen grain in proximal view showing the irregularly undulating psilate tectum resulting from the depressions around the perforations in the pollen wall. Specimen, TV44-S137909 (holotype). Scale bars 300 Μm (a), 30 Μm (b), 12 Μm (c), 6 Μm (d–h). in The Early Cretaceous Mesofossil Flora Of Torres Vedras (Ne Of Forte Da Forca), Portugal: A Palaeofloristic Analysis Of An Early Angiosperm Community

Text-fig. 30. Scanning electron microscope (SEM) images of monocolpate pollen of Dejaxia brevicolpites gen. et sp. nov. from a pollen clump; Torres Vedras locality, Portugal. a) Holotype; pollen clump (possible single pollen sac) that yielded the pollen in this Textfigure; b, c) Group of almost spherical pollen grains showing the irregularly undulating psilate tectum and abundant orbicules; d–g) Pollen grains showing the short colpi with a granular aperture membrane (d, f) and the irregularly undulating psilate tectum with scattered small perforations; note abundant orbicules (g); h) Pollen grain in proximal view showing the irregularly undulating psilate tectum resulting from the depressions around the perforations in the pollen wall. Specimen, TV44-S137909 (holotype). Scale bars 300 Μm (a), 30 Μm (b), 12 Μm (c), 6 Μm (d–h).

opencc-by-4.0Dec 2019View details →

Text-fig. 2. Metacheiromys marshii, AMNH 131777, drawing of basicranium in ventral view with isosurface from CT scans of left petrosal inserted (compare with Simpson 1931: fig. 7). Much of the mastoid exposure on the specimen's left side is damaged. Numbers 1 to 4 indicate depressions that based on the right side include a thin layer of entotympanic; 1 to 3 are between petrosal and basioccipital and 4 is petrosal only. The white arrow in the lower left passes through a canal between the petrosal and exoccipital for the auricular branch of the vagus nerve. Abbreviations: abX – grooves and foramina for auricular branch of vagus nerve, as – alisphenoid, astp – alisphenoid tympanic process, bo – basioccipital, bs – basisphenoid, eam – roof of external acoustic meatus, ec – ectotympanic, en – entotympanic, eo – exoccipital, es – epitympanic sinus of squamosal, fm – foramen magnum, fo – foramen ovale, gf – glenoid fossa, hf – hypoglossal foramen, ips – foramen for inferior petrosal sinus, ljf – lateral jugular foramen, me – mastoid exposure of petrosal, mjf – medial jugular foramen, mt – muscular tubercle, mtc – musculotubal canal, oc – occipital condyle, pa – porus acousticus (hidden), pas – parasphenoid, pgp – postglenoid process, pr – promontorium of petrosal, ps – presphenoid, smf – stylomastoid foramen, sof – superior orbital fissure, sq – squamosal, tca – tympanic canaliculus, th – tympanohyal, tm – tubular external acoustic meatus. in Skeletal Anatomy Of The Basicranium And Auditory Region In The Metacheiromyid Palaeanodont Metacheiromys (Mammalia, Pholidotamorpha) Based On High-Resolution Ct Scans

Text-fig. 2. Metacheiromys marshii, AMNH 131777, drawing of basicranium in ventral view with isosurface from CT scans of left petrosal inserted (compare with Simpson 1931: fig. 7). Much of the mastoid exposure on the specimen's left side is damaged. Numbers 1 to 4 indicate depressions that based on the right side include a thin layer of entotympanic; 1 to 3 are between petrosal and basioccipital and 4 is petrosal only. The white arrow in the lower left passes through a canal between the petrosal and exoccipital for the auricular branch of the vagus nerve. Abbreviations: abX – grooves and foramina for auricular branch of vagus nerve, as – alisphenoid, astp – alisphenoid tympanic process, bo – basioccipital, bs – basisphenoid, eam – roof of external acoustic meatus, ec – ectotympanic, en – entotympanic, eo – exoccipital, es – epitympanic sinus of squamosal, fm – foramen magnum, fo – foramen ovale, gf – glenoid fossa, hf – hypoglossal foramen, ips – foramen for inferior petrosal sinus, ljf – lateral jugular foramen, me – mastoid exposure of petrosal, mjf – medial jugular foramen, mt – muscular tubercle, mtc – musculotubal canal, oc – occipital condyle, pa – porus acousticus (hidden), pas – parasphenoid, pgp – postglenoid process, pr – promontorium of petrosal, ps – presphenoid, smf – stylomastoid foramen, sof – superior orbital fissure, sq – squamosal, tca – tympanic canaliculus, th – tympanohyal, tm – tubular external acoustic meatus.

opencc-by-4.0Dec 2019View details →

Text-fig. 5. Metacheiromys marshi, AMNH 131777, left petrosal isosurface from CT scans in tympanic view; the posttympanic process of the squamosal and some possible entotympanic are also included. a – isosurface; b – line drawing with labels. Numbers 1 to 4 indicate depressions on medial flange. Abbreviations: ams – anteromedial septum, aptt – anteroventral process of tegmen tympani, cct – canal for chorda tympani nerve, ci – crista interfenestralis, cof – cochlear fossula, cp – crista parotica, ctp – caudal tympanic process, en? – possible entotympanic, epc – epitympanic crest, ew – epitympanic wing, fc – facial canal, fv – fenestra in Skeletal Anatomy Of The Basicranium And Auditory Region In The Metacheiromyid Palaeanodont Metacheiromys (Mammalia, Pholidotamorpha) Based On High-Resolution Ct Scans

Text-fig. 5. Metacheiromys marshi, AMNH 131777, left petrosal isosurface from CT scans in tympanic view; the posttympanic process of the squamosal and some possible entotympanic are also included. a – isosurface; b – line drawing with labels. Numbers 1 to 4 indicate depressions on medial flange. Abbreviations: ams – anteromedial septum, aptt – anteroventral process of tegmen tympani, cct – canal for chorda tympani nerve, ci – crista interfenestralis, cof – cochlear fossula, cp – crista parotica, ctp – caudal tympanic process, en? – possible entotympanic, epc – epitympanic crest, ew – epitympanic wing, fc – facial canal, fv – fenestra