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[Ornithology • 2017] Myzomela irianawidodoae • A Colourful New Species of Myzomela Honeyeater from Rote Island in eastern Indonesia ---ScRaBBlE

Myzomela irianawidodoae Prawiradilaga, Baveja, Suparno, Ashari, Ng, Gwee, Verbelen & Rheindt, 2017  photo:   Philippe Verbelen  e-journ...

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Showing posts with label Algeria. Show all posts
Showing posts with label Algeria. Show all posts

Wednesday, March 20, 2019

[Fungi • 2018] Genetic Diversity of the Genus Terfezia (Pezizaceae, Pezizales): New Species, Terfezia crassiverrucosa, and New Record from North Africa ---ScRaBBlE


Terfezia crassiverrucosa  
  Zitouni-Haouar, G. Moreno, Manjón, Fortas, & Carlavilla

in Zitouni-Haouar, Carlavilla, Moreno, Manjón & Fortas, 2018

Abstract

Morphological and phylogenetic analyses of large ribosomal subunit (28S rDNA) and internal transcribed spacer (ITS rDNA) of Terfezia samples collected from several bioclimatic zones in Algeria and Spain revealed the presence of six distinct Terfezia species: T. arenaria, T. boudieri, T. claveryi; T. eliocrocae (reported here for the first time from North Africa), T. olbiensis, and a new speciesTerfezia crassiverrucosa sp. nov., proposed and described here, characterized by its phylogenetic position and unique combination of morphological characters. A discussion on the unresolved problems in the taxonomy of the spiny-spored Terfezia species is conducted after the present results.

Keywords: desert truffles, Pezizaceae, phylogeny, taxonomy, Fungi


FIGURE 2. Macro- and microscopic characters of Terfezia crassiverrucosa.
a. ascocarp collected under Helianthemum hirtum. b. gleba, cross section. c,d. asci with spores. e–h. ascospores (f–h. scanning electron micrograph).

Bars: a–b = 1 cm, c–d = 10 µm, e = 5 µm, f–g = 5 µm, h = 2 µm.

Terfezia crassiverrucosa Zitouni-Haouar, G. Moreno, Manjón, Fortas, & Carlavilla, sp. nov.  

  Diagnosis:— Ascomata hypogeous, subglobose, substipitate with short basal attachment, <8 cm broad (Fig. 2a). Peridium smooth, light to dark brownish, 100–200 µm thick with emergent hyphae 6–10 µm broad at septa, pseudoparenchymatous, composed of subglobose, polygonal to irregularly oblong cells (9–) 12.5–38 × 15–60(–62) µm, with cell walls 1–2 µm thick. Gleba solid, fleshy, light pink to pale yellow with subglobose to elongate light pink to pale gray pockets of fertile tissue, separated by light yellow to pale orangish yellow sterile veins (Fig. 2b). Asci (4–6)–8– spored, hyaline, often ellipsoid to ovoid or at times subglobose, 51–60 × 60–81 µm, nonstalked (Fig. 2 c & d). Ascospores globose, first hyaline, turning light yellowish to bright orange with age, measuring (16–) 17–21 (–24) µm in diameter including ornamentation, consisting in more or less broad flat truncate to round-tipped warts (0.5–) 1–1.5 × 2–4.5 (– 6) µm, and relatively elongated rounded elements measuring 1–1.5 × 1.5–3 µm. The prominent, crowded ornamentation hides a fine reticulum on the spore surface formed between the warts (Fig. 2 c–h).

Etymology:— The epithet (Latin crassiverrucosa) refers to the large warts covering the spore surface of this species. 

Habitat:— Algerian arid area. In high steppe plains south of Constantine (Chrea, Tebessa), associated with Helianthemum sp. In high steppe plains south of Algiers (Bouchouat, Tiaret), found under Helianthemum hirtum and H. salicifolium associated mostly with Stipa parviflora on sandy loam alkaline soil, in sites also producing T. claveryi and T. eliocrocae. March, April.

  
 Fatima El-Houaria Zitouni-Haouar, Juan Ramón Carlavilla, Gabriel Moreno, José Luis Manjón and Zohra Fortas. 2018. Genetic Diversity of the Genus Terfezia (Pezizaceae, Pezizales): New Species and New Record from North Africa. Phytotaxa.  334(2); 183–194.  DOI: 10.11646/phytotaxa.334.2.7 

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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل
او
شاهد هذا الفيديو القصير لطريقة التحميل البسيطة


كيف تحصل على مدونة جاهزة بآلاف المواضيع والمشاركات من هنا
شاهد قناة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على اليوتيوب لمزيد من الشرح من هنا
رابط مدونة منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات في أي وقت حــــتى لو تم حذفها من هنا
شاهد صفحة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على الفيس بوك لمزيد من الشرح من هنا
تعرف على ترتيب مواضيع منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات (حتى لا تختلط عليك الامور) من هنا

ملاحظة هامة: كل عمليات تنزيل، رفع، وتعديل المواضيع الجاهزة تتم بطريقة آلية، ونعتذر عن اي موضوع مخالف او مخل بالحياء مرفوع بالمدونات الجاهزة بآلاف المواضيع والمشاركات، ولكم ان تقوموا بحذف هذه المواضيع والمشاركات والطريقة بسيطة وسهلة. ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــسلامـ.

[Paleontology • 2018] Large-sized Theropod Spinosaurus: An Important Component of the Carnivorous Dinosaur Fauna in southern Continents During the Cretaceous ---ScRaBBlE


Semi-aquatic paleoenvironmental reconstruction of Spinosaurus dinosaur during early Late Cretaceous:
 (A) 
Spinosaurus; (B) Mawsonia coelacanth fishes

in Candeiro, Gil & de Castro, 2018. 
 (drawing Luciano Vidal)

Abstract 
The Early Cretaceous of North Africa has Spinosaurinae dinosaur remains such as Spinosaurus recorded in Algeria (Guir Basin, Kem Kem beds), Egypt (Bahariya Formation), Morocco (Kem Kem beds), and Tunisia (Ain El Guettar Formation). Until now, three possible Spinosaurus species were identified: Spinosaurus aegyptiacus, Spinosaurus sp. and Spinosaurus “B”. The occurrence of this genus in the Albian-Cenomanian rocks of Africa suggests that the temporal and geographic distribution of these spinosaurines is the largest one among all genera and species of megapredators from the middle Cretaceous of Africa. The fossil record of Spinosaurus from the Albian to the Cenomanian shows a 20 million year persistence of this genus in Gondwanan ecosystems.

Keywords: theropod dinosaur, distribution, Early Cretaceous, Africa


Fig. 3 Most complete Spinosaurus species skulls from early Late Cretaceous formations from Northern Africa.
 Spinosaurus aegyptiacus (from Stromer, 1915), BSP 1912 – dentary, A in lateral and B in dorsal views.
Spinosaurus cf. aegyptiacus (from Buffetaut and Ouaja, 2002), BM231 – rostral part of left dentary, C, in lateral and in D dorsal views.
 Spinosaurus marrocanus (nomen dubium) (Taquet and Russell, 1998) MNHM SAM 124 – left maxilary, E in lateral and F dorsal views.
Spinosaurus cf. S. aegyptiacus (from Dal Sasso et al., 2005) MSNM V4047 – left maxilary, G in lateral in dorsal view.

Fig. 5. Semi-aquatic paleoenvironmental reconstruction of Spinosaurus dinosaur during early Late Cretaceous: (A) Spinosaurus; (B) Mawsonia coelacanth fishes; (C) Araripemys turtle (drawing Luciano Vidal).

 Remarks: 
The middle Cretaceous strata of North Africa preserved an important record of the theropod Spinosaurus. Although their fossil remains are usually fragmented, most specimens show diagnostic characters of the genus Spinosaurus that are especially present in their conical and non-serrated teeth. The fossil record of this genus in North Africa shows a restricted geographic distribution between the Albian and the Cenomanian periods. Yet, when we consider their temporal distribution, it suggests that Spinosaurus had a significant geological history of nearly 20 million years, a lifespan unknown for other African megapredators species (e.g., Carcharodontosaurus – 18.5 mya [Candeiro et al., 2018]). The geological evidences indicate that Africa was an island during the main period of occurrence of this genus. The faunal composition of the spinosaurinae that inhabited the eastern coast of Africa is broadly comparable with the Cenomanian fossil records from western Africa, supporting the relative homogeneous composition of the taxon in these areas during this period. Additional studies and future field prospections in other localities could eventually reveal a wider distribution of this genus in other regions of Africa (e.g., Niger, Sudan) or even in western Europe and northern South America.


Carlos Roberto A. Candeiro, Lívia Motta Gil and Pedro Ernesto Pontes de Castro. 2018. Large-sized Theropod Spinosaurus: An Important Component of the Carnivorous Dinosaur Fauna in southern Continents During the Cretaceous. Bulletin de la Société Géologique de France. 189 (4-6): 15.  DOI: 10.1051/bsgf/2018010


Résumé – Spinosaurus (théropode de grande taille) : une composante importante de la faune de dinosaures carnivores des continents méridionaux au cours du Crétacé. Le Crétacé inférieur d’Afrique du Nord renferme des restes de dinosaures spinosaurinés, tels que Spinosaurus répertorié en Algérie (Bassin du Guir, Kem Kem beds), en Égypte (Formation Bahariya), au Maroc (Kem Kem beds) et en Tunisie (Formation Ain El Guettar). Jusqu’à ce jour, trois espèces de spinosaure sont reconnues : Spinosaurus aegyptiacus, Spinosaurus sp. et Spinosaurus “B”. La présence de ce genre dans les terrains albocénomaniens d’Afrique suggère que la répartition temporelle et géographique de ces spinosaurinés est la plus étendue de tous les genres et espèces de méga-prédateurs du Crétacé moyen d’Afrique. Le registre fossile de Spinosaurus, depuis l’Albien jusqu’au Cénomanien, indique une présence de 20 millions d’années pour ce genre dans les écosystèmes gondwaniens. 
Mots clés : théropode dinosaure / distribution / Crétacé inférieur / Afrique

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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل
او
شاهد هذا الفيديو القصير لطريقة التحميل البسيطة


كيف تحصل على مدونة جاهزة بآلاف المواضيع والمشاركات من هنا
شاهد قناة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على اليوتيوب لمزيد من الشرح من هنا
رابط مدونة منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات في أي وقت حــــتى لو تم حذفها من هنا
شاهد صفحة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على الفيس بوك لمزيد من الشرح من هنا
تعرف على ترتيب مواضيع منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات (حتى لا تختلط عليك الامور) من هنا

ملاحظة هامة: كل عمليات تنزيل، رفع، وتعديل المواضيع الجاهزة تتم بطريقة آلية، ونعتذر عن اي موضوع مخالف او مخل بالحياء مرفوع بالمدونات الجاهزة بآلاف المواضيع والمشاركات، ولكم ان تقوموا بحذف هذه المواضيع والمشاركات والطريقة بسيطة وسهلة. ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــسلامـ.

[Fungi • 2018] Genetic Diversity of the Genus Terfezia (Pezizaceae, Pezizales): New Species, Terfezia crassiverrucosa, and New Record from North Africa ---ScRaBBlE


Terfezia crassiverrucosa  
  Zitouni-Haouar, G. Moreno, Manjón, Fortas, & Carlavilla

in Zitouni-Haouar, Carlavilla, Moreno, Manjón & Fortas, 2018

Abstract

Morphological and phylogenetic analyses of large ribosomal subunit (28S rDNA) and internal transcribed spacer (ITS rDNA) of Terfezia samples collected from several bioclimatic zones in Algeria and Spain revealed the presence of six distinct Terfezia species: T. arenaria, T. boudieri, T. claveryi; T. eliocrocae (reported here for the first time from North Africa), T. olbiensis, and a new speciesTerfezia crassiverrucosa sp. nov., proposed and described here, characterized by its phylogenetic position and unique combination of morphological characters. A discussion on the unresolved problems in the taxonomy of the spiny-spored Terfezia species is conducted after the present results.

Keywords: desert truffles, Pezizaceae, phylogeny, taxonomy, Fungi


FIGURE 2. Macro- and microscopic characters of Terfezia crassiverrucosa.
a. ascocarp collected under Helianthemum hirtum. b. gleba, cross section. c,d. asci with spores. e–h. ascospores (f–h. scanning electron micrograph).

Bars: a–b = 1 cm, c–d = 10 µm, e = 5 µm, f–g = 5 µm, h = 2 µm.

Terfezia crassiverrucosa Zitouni-Haouar, G. Moreno, Manjón, Fortas, & Carlavilla, sp. nov.  

  Diagnosis:— Ascomata hypogeous, subglobose, substipitate with short basal attachment, <8 cm broad (Fig. 2a). Peridium smooth, light to dark brownish, 100–200 µm thick with emergent hyphae 6–10 µm broad at septa, pseudoparenchymatous, composed of subglobose, polygonal to irregularly oblong cells (9–) 12.5–38 × 15–60(–62) µm, with cell walls 1–2 µm thick. Gleba solid, fleshy, light pink to pale yellow with subglobose to elongate light pink to pale gray pockets of fertile tissue, separated by light yellow to pale orangish yellow sterile veins (Fig. 2b). Asci (4–6)–8– spored, hyaline, often ellipsoid to ovoid or at times subglobose, 51–60 × 60–81 µm, nonstalked (Fig. 2 c & d). Ascospores globose, first hyaline, turning light yellowish to bright orange with age, measuring (16–) 17–21 (–24) µm in diameter including ornamentation, consisting in more or less broad flat truncate to round-tipped warts (0.5–) 1–1.5 × 2–4.5 (– 6) µm, and relatively elongated rounded elements measuring 1–1.5 × 1.5–3 µm. The prominent, crowded ornamentation hides a fine reticulum on the spore surface formed between the warts (Fig. 2 c–h).

Etymology:— The epithet (Latin crassiverrucosa) refers to the large warts covering the spore surface of this species. 

Habitat:— Algerian arid area. In high steppe plains south of Constantine (Chrea, Tebessa), associated with Helianthemum sp. In high steppe plains south of Algiers (Bouchouat, Tiaret), found under Helianthemum hirtum and H. salicifolium associated mostly with Stipa parviflora on sandy loam alkaline soil, in sites also producing T. claveryi and T. eliocrocae. March, April.

  
 Fatima El-Houaria Zitouni-Haouar, Juan Ramón Carlavilla, Gabriel Moreno, José Luis Manjón and Zohra Fortas. 2018. Genetic Diversity of the Genus Terfezia (Pezizaceae, Pezizales): New Species and New Record from North Africa. Phytotaxa.  334(2); 183–194.  DOI: 10.11646/phytotaxa.334.2.7 

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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل
او
شاهد هذا الفيديو القصير لطريقة التحميل البسيطة


كيف تحصل على مدونة جاهزة بآلاف المواضيع والمشاركات من هنا
شاهد قناة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على اليوتيوب لمزيد من الشرح من هنا
رابط مدونة منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات في أي وقت حــــتى لو تم حذفها من هنا
شاهد صفحة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على الفيس بوك لمزيد من الشرح من هنا
تعرف على ترتيب مواضيع منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات (حتى لا تختلط عليك الامور) من هنا

ملاحظة هامة: كل عمليات تنزيل، رفع، وتعديل المواضيع الجاهزة تتم بطريقة آلية، ونعتذر عن اي موضوع مخالف او مخل بالحياء مرفوع بالمدونات الجاهزة بآلاف المواضيع والمشاركات، ولكم ان تقوموا بحذف هذه المواضيع والمشاركات والطريقة بسيطة وسهلة. ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــسلامـ.

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