scholarly journals Albian bivalves from Madiela Formation in north Gabonese coastal basin

2019 ◽  
Vol 190 ◽  
pp. 5
Author(s):  
Benjamin Musavu Moussavou

A study of Albian bivalves from Madiela Formation in north of Gabonese coastal basin has been carried out from N’Toum quarry geological section. Four genera including six species are identified: Liopistha (Psilomya) sp. 1, ? Liopistha (Psilomya) sp. 2, Megaporomya sp., Neithea (Neithea) dutrugei (Coquand, 1862), Pleuromya sp. 1 and Pleuromya sp. 2. One morphotype is identified as Bivalvia gen. et sp. indet. The genus Megaporomya Ayoub-Hannaa et al., 2013 and all identified species, except Neithea (Neithea) dutrugei (Coquand, 1862), are found for the first time in Gabonese coastal basin. Now, a total of twelve species of bivalves have been reported from the Madiela Formation. In Gabon, the presence for the first time of genera Liopistha and Pleuromya in N’Toum quarry geological section which is assigned to the Albian permits us to expand their geographical distribution until N’Toum region, and their age range to Albian.

2015 ◽  
Vol 186 (1) ◽  
pp. 35-42 ◽  
Author(s):  
Benjamin Musavu Moussavou ◽  
Rolf Mabicka Obame

Abstract The taxonomy and paleoecology of the Albian gastropods from the N’Toum quarry geological section (N’Toum locality) are here discussed. Three genera including four species are identified: Ampullina sp., Tylostoma pallaryi (Peron & Fourtau), Lithomphalus sp. A and Lithomphalus sp. B. Three morphotypes are identified as Aporrhaidae gen. et sp. indet., Gast. gen. et sp. indet. 1 and Gast. gen. et sp. indet. 2. The genus Lithomphalus as the rest of gastropods assemblage are reported for the first time in the Gabonese coastal basin. The gastropod fauna from the N’Toum quarry section is marine. Its composition suggests soft to firm substrate. The depositional environment is considered as within the shallow photic zone with probably high amounts of organic debris in the substrate.


Phytotaxa ◽  
2015 ◽  
Vol 213 (2) ◽  
pp. 87 ◽  
Author(s):  
Kazem Negaresh ◽  
SAYED MOHAMMAD REZA KHOSHROO ◽  
ROYA KARAMIAN ◽  
MOHAMMAD REZA JOHARCHI

A taxonomic review of Rhaponticoides in Iran is based on morphological characters of the specimens from the authors’ expeditions and other herbarium collections. Rhaponticoides lachnopus, R. schmidii, R. sect. Iranicae and R. sect. Ruthenicae are proposed as new combinations. Full description for the genus Rhaponticoides and R. sect. Iranicae and R. sect. Ruthenicae are presented for the first time here. Three names, R. lachnopus, R. ruthenica and its synonym, are typified. A synopsis with recognized sections and species, relevant synonyms, type citations, lists of specimens examined and an identification key are provided for the genus Rhaponticoides in Iran. In addition, some notes about ecology and habitat of Rhaponticoides especially in Iran are given. Finally, the geographical distribution of all the 4 species recognized in Iran is presented and mapped.


2011 ◽  
Vol 44 (4) ◽  
pp. 511-512 ◽  
Author(s):  
Dionatas Ulises de Oliveira Meneguetti ◽  
Olzeno Trevisan ◽  
Renato Moreira Rosa ◽  
Luís Marcelo Aranha Camargo

INTRODUCTION: This paper reports, for the first time, the presence of the Eratyrus mucronatus species in the State of Rondonia, Brazil. METHODS: These specimens were caught by chance in the forest and later they were collected using luminous traps. RESULTS: After finding these specimens, the number of the Triatominae genera in Rondonia rose to four, while its species rose to seven. CONCLUSIONS: Complimentary studies will be conducted in order to allow for clearer understanding the ecology of this arthropod, its possible role in transmitting Chagas' disease and its current geographical distribution.


1889 ◽  
Vol 6 (11) ◽  
pp. 498-499 ◽  
Author(s):  
Frederick Chapman ◽  
C. Davies Sherborn

In the Proceedings of the Geologists' Association for 1878, Mr. W. H. Shrubsole, F.G.S., published a list of Foraminifera obtained from the London Clay of Sheppey. The following list, the result of an examination of some material courteously lent to us by Professor J. W. Judd, F.R.S., adds considerably to the fauna of Sheppey and includes two species not previously recorded from the London Clay. Forty-one forms have been determined, of which twenty-six. are new to Sheppey, thus bringing up the number of forms recorded from that locality to eighty-six. The geographical distribution of the Foraminifera of the London Clay was fully tabulated in 1886, and it is interesting to find so many of the forms there figured and recorded for the first time from the London area common to both localities. The figure following the specific name in the list appended shows the relative abundance of the varieties found.


Author(s):  
Jaime Ricardo Cantera K. ◽  
Raúl Neira O.

This paper reports for the first time for the tropical Eastern Pacific the genus Echineulima (Gastropoda: Eulimidae), a parasite of the sea urchin Centrostephanus coronatus, in coral reefs of Gorgona Island at 2 4 m depth. It seems likely that it is an undescribedspecies. This paper presents information abftut the snail including a brief description, size, habitat, and considerations about the effects of the parasite on the sea urchin. A discussión about the geographical distribution of the genus is also presented.


2019 ◽  
Vol 11 (14) ◽  
pp. 14876-14885
Author(s):  
Arjun Adit ◽  
Monika Koul ◽  
Rajesh Tandon

Ten species of orchids belonging to eight genera are recorded for the first time from Tripura State of India.  The taxa include Bulbophyllum affine Wall. ex Lindl., Bulbophyllum lobbii Lindl., Coelogyne suaveolens (Lindl.) Hook.f., Dendrobium tortile Lindl., Micropera pallida Lindl., Mycaranthes floribunda (D.Don) S.C.Chen & J.J.Wood, Pinalia acervata (Lindl.) Kuntze, Pinalia globulifera (Seidenf.) A.N.Rao, Thelasis khasiana Hook.f. and Trichoglottis ramosa (Lindl.) Senghas.  Geographical distribution along with detailed descriptions and photographs of the recorded species are provided.


2019 ◽  
Vol 12 (2) ◽  
pp. 84-87
Author(s):  
Ricardo Adaime ◽  
Rildo Pessoa Almeida ◽  
José Francisco Pereira ◽  
Alberto Luiz Marsaro Júnior ◽  
Germano Henrique Rosado-Neto

Resumo. Anthonomus tomentosus (Faust) (Coleoptera: Curculionidae) é registrado pela primeira vez na Amazônia Oriental, a partir de frutos de Malpighia emarginata DC. coletados no estado do Amapá, Brasil. Neste trabalho também são apresentados sinas de danos aos frutos e a distribuição geográfica de A. tomentosus no Brasil.First record of Anthonomus tomentosus (Faust) (Coleoptera: Curculionidae) in the Eastern AmazonAbstract. Anthonomus tomentosus (Faust) (Coleoptera: Curculionidae) is recorded for the first time in the Eastern Amazon, from fruits of Malpighia emarginata DC. collected in the state of Amapá, Brazil. In this work we also present the signals damages on the fruits and the geographical distribution of A. tomentosus in Brazil.


2020 ◽  
Vol 6 (2) ◽  
pp. 168 ◽  
Author(s):  
Fernando Araujo Perini ◽  
Júlia Quintaneiro Mota

We report new records of the White-Tailed Deer (Odocoileus virginianus) in Brazil based on specimens deposited in scientific collections. These new records expand the known geographic distribution of the species in Brazil southwards in the states of Roraima and Amapá, the latter the first record of the species below the equator line in Brazil, and register it for the first time in the state of Amazonas. These records contribute to increase the knowledge of the geographical distribution of O. virginianus in Brazil and highlights the importance of museum collections as a source of biogeographic and ecological data.


Zootaxa ◽  
2019 ◽  
Vol 4658 (3) ◽  
pp. 541-555
Author(s):  
YUN BU ◽  
MAYSA FERNANDA VILLELA REZENDE SOUZA ◽  
RODRIGO LOPES FERREIRA

Koeneniodes madecassus Remy, 1950 is reported from Guangxi Province, Southwest China for the first time. Since there has been neither a Koeneniodes record nor any morphological addendum since 1997, several traits used in contemporary palpigrade taxonomy have remained unknown for this genus. Here, we redescribe K. madecassus according to modern standards and provide information on the chaetotaxy of the pedipalp and the four legs, the shape of setae on the body, and some relevant measurements and indices. The geographical distribution of the species is outlined and discussed.


2020 ◽  
Vol 2 ◽  
Author(s):  
Michael Romann ◽  
Eva Rüeger ◽  
Mirjam Hintermann ◽  
Raphael Kern ◽  
Oliver Faude

Introduction: Relative age effects (RAEs) refer to the overrepresentation of players born earlier in the selection year compared to late-born players within the same age category. To date, the origins and mechanisms of RAEs are still unclear. To evaluate the development of RAEs in terms of age group and selection level, we analyzed data of all registered child and adolescent football players in Switzerland.Methods: Age category, selection level, and birthdate from all licensed 101,991 Swiss child and youth football players assigned to a specific team [9,149 girls (9.0%) and 92,842 boys (91.0%); age range: 4.6–19.6 years] were analyzed. Additionally, out of 1,128 clubs, 54 clubs provided their documented waiting lists (1,224 players). Birthdate distributions were split by age category, sex, and birth quarter (Q1 = January to March, Q4 = October to December). RAEs were calculated using odds ratios (Q1 vs. Q4) with 95% confidence intervals (95% CI).Results: We found small RAEs among U8 players (OR 1.44 [95% CI 1.31, 1.59]) and U10 (OR 1.24 [95% CI 1.16, 1.32]). The RAE was negligible in all other age categories, independent of gender. In children's football, 5,584 (71.3%) teams performed selections. In teams without selection, there were no obvious RAEs. However, teams with selections for the same age category showed small RAEs with an overrepresentation of Q1 athletes in the first team (OR = 1.29 [95% CI 1.24, 1.35]) and inverse RAEs with an underrepresentation of Q1 athletes in the last team (OR = 0.85 [95% CI 0.82, 0.89]). Only small RAEs were observed on the waiting lists for the U8 (OR = 1.48 [1.13, 1.95]).Discussion and Conclusion: RAEs have a small, but consistent effect on participation in Swiss children's football at the grassroots level. Contrary to expectations, no inverse RAEs were found on the waiting lists. Nonetheless, first time coach selections seem to be the origin of RAEs. To protect young athletes from discrimination, RAE biases should be analyzed and eliminated at all stages of sport participation, selection, and dropout situations. Modifications to the organizational structure of sport and athlete development systems are recommended to prevent RAE-related discrimination in youth sports.


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