First record of Styracoxylon (Styracaceae) from Southern Hemisphere: Arroyo Feliciano Formation (Upper Pleistocene), Entre Ríos, Argentina

2015 ◽  
Vol 221 ◽  
pp. 211-219 ◽  
Author(s):  
Eliana Moya ◽  
Mariana Brea ◽  
María Jimena Franco
Zootaxa ◽  
2011 ◽  
Vol 2910 (1) ◽  
Author(s):  
KEIZO TAKASUKA ◽  
HAJIME YOSHIDA ◽  
PUTRA NUGROHO ◽  
RIKIO MATSUMOTO

Zatypota albicoxa (Walker) is newly recorded from Mt. Merapi, Java Is., Indonesia. This is the first record of Z. albicoxa from this part of the Oriental region and from the Southern Hemisphere, and the first record of the genus Zatypota from Southeast Asia. The Indonesian population of Z. albicoxa attacks a theridiid spider of the genus Parasteatoda, as do populations of Z. albicoxa in other regions. The spider is a new species, and is described under the name of Parasteatoda merapiensis.


Zootaxa ◽  
2011 ◽  
Vol 3027 (1) ◽  
pp. 9 ◽  
Author(s):  
DANIEL LAURETTA ◽  
ESTEFANÍA RODRÍGUEZ ◽  
PABLO E. PENCHASZADEH

During 2007, 2008, and 2010, 23 specimens of an undescribed vermiform sea anemone were collected on Punta Pardelas and Fracaso Beach (Península Valdés, Argentina). The specimens have longitudinal rows of cinclides distally, all mesenteries perfect, tentacles hexamerously arranged without acrospheres, column not divisible into regions, no marginal sphincter and no conchula. We describe these specimens as a new species within the genus Harenactis (family Haloclavidae). Harenactis argentina sp. nov. is the second species of Harenactis; it represents the first record of this genus in the southern hemisphere and the first record of a soft bottom-dwelling sea anemone in the Argentine continental zone. Furthermore, we discuss the familial placement and relationships of the genus Harenactis and other athenarian sea anemones.


2020 ◽  
Vol 24 (3) ◽  
pp. 227-253
Author(s):  
Ricardo Bastida ◽  
Viviana Quse ◽  
María Paz Martinoli ◽  
Atilio Francisco Zangrando

In 2003 Mycobacterium pinnipedii was described as responsible for producing tuberculosis (TB) in living otariid pinnipeds from Argentina and Australia. It is the only member of marine origin within the Mycobacterium tuberculosis Complex (MTBC), which also affects other domestic and wild mammals, and humans. Based on several pre-Columbian records of human tuberculosis in South America, in 2010-2011 a new hypothesis about the origin of this zoonosis through otariid pinnipeds arose. In 2014, this hypothesis was confirmed based on the study of ancient DNA from three mummies (700-1,000 years BP) of the Chiribaya culture (Peru). Since there were no records of TB bone lesions in zooarchaeological samples of otariid pinnipeds from South America and the rest of the world, our study aimed at examining zooarchaeological samples of pinnipeds from coastal sites of the Beagle Channel (Tierra del Fuego, Argentina), being the oldest Túnel I (6,400-4,300 years BP). A total of 4,138 vertebrae were analyzed, of which 0.46 % showed lesions compatible with TB. In addition, we propose a new hypothesis on possible mechanisms of Mycobacterium pinnipedii dissemination that would explain the transmission routes to the different otariid pinniped species of the Southern Hemisphere. Mycobacterium pinnipedii is one of the most aggressive mycobacteria of the MTBC and of high risk for humans.


Zootaxa ◽  
2017 ◽  
Vol 4312 (1) ◽  
pp. 189 ◽  
Author(s):  
JUAN FRANCISCO ARAYA ◽  
JUAN ANTONIO ALIAGA ◽  
DENNIS OPRESKO

Antipatharians are still poorly documented in the southeastern Pacific, with just eleven species reported in Chilean waters, all of them distributed in subtidal areas from 70 to 2000 m depth (Häussermann & Försterra, 2007; Cañete & Häussermann, 2012; Araya et al. 2016a). Among the family Schizopathidae Brook, 1889, which is characterized by polyps elongated in the direction of the axis and having a transverse diameter of 2 mm or more (Opresko, 2002), the recently described deep-water genus Alternatipathes Molodtsova & Opresko, 2017, encompasses two recognized species, Alternatipathes alternata (Brook, 1889), reported from abyssal basins (2670 to 5089 m depth) of the Indian and Pacific Oceans, and Alternatipathes bipinnata (Opresko, 2005), known from a few specimens collected in deep waters (1130 to 2846 m) off the Pacific coasts of northern Mexico and southern USA (Opresko, 2005; Molodtsova & Opresko, 2017). 


Zootaxa ◽  
2008 ◽  
Vol 1866 (1) ◽  
pp. 482 ◽  
Author(s):  
SASKIA BRIX ◽  
NIEL L. BRUCE

Prochelator tupuhi sp. nov. is the first record of the genus Prochelator Hessler, 1970 from Southern Hemisphere waters, and the first record of the family Desmosomatidae from New Zealand. The new species can be distinguished from all other species of the genus by the following characters: body elongate, without spine-like ventral elongations on pereonites 1–4, pereonite 1 as high as pereonite 5, mesial lobe of the maxilla much shorter than in the other species of the genus, reaching only half the length of the lateral lobe, carpus of pereopod 1 distinctly produced at the base of the claw, propodus broadest at the articulation to the carpus, tapering distally.


Zootaxa ◽  
2008 ◽  
Vol 1908 (1) ◽  
pp. 51-56 ◽  
Author(s):  
NIEL L. BRUCE ◽  
REGINA WETZER

Collections made along the coast of California have revealed the presence of a species of Pseudosphaeroma Chilton, 1909, a genus common in New Zealand coastal waters. The genus is entirely Southern Hemisphere in distribution, and this record reports the introduction of a species of Pseudosphaeroma into the San Francisco and Central Coast region of California, the first reported occurrence of the genus as an invasive taxon, and the first record of the genus from the Northern Hemisphere. The genus is also recorded for the first time from the Galapagos and Argentina.


IAWA Journal ◽  
2014 ◽  
Vol 35 (2) ◽  
pp. 199-212 ◽  
Author(s):  
R. Soledad Ramos ◽  
Mariana Brea ◽  
Romina Pardo

This paper describes the first record of Peltophoroxylon (Ramanujam) Müller-Stoll et Mädel 1967 from the late Pleistocene of Argentina. The fossil specimens were recovered from the Colonia Ayuí and Punta Viracho fossil localities of the El Palmar Formation, located in the middle part of the Uruguay Basin, eastern Argentina. The diagnostic features are: growth ring boundaries demarcated by marginal parenchyma, medium-sized vestured intervessel pits, vessel-ray parenchyma pits similar in size and shape to intervessel pits, vasicentric to lozenge type aliform axial parenchyma, biseriate (70%) and uniseriate (30%) homocellular rays, non-septate and septate fibers, and long chains (10+) of prismatic crystals in chambered axial parenchyma cells. These features suggest a relationship with Peltophorum (Vogel) Benth. (Leguminosae: Caesalpinioideae). The vessel diameter and vessel density of the El Palmar woods are consistent with the temperate-warm, humid-semiarid climate inferred for this region during the late Pleistocene.


1980 ◽  
Vol 58 (3) ◽  
pp. 443-449 ◽  
Author(s):  
Joseph S. Nelson

Psychrolutes sio, a new species of Psychrolutidae from off northernmost Chile, is described from two specimens trawled at about 770–1150 m. The holotype is deposited in the Scripps Institution of Oceanography (SIO 72-184). The only large specimen, the 22.9-cm holotype, differs most conspicuously from the other two species of the genus Psychrolutes in having the head and body color a uniform brown, skin thin, lateral line pores in small but distinct tubes, and jaws equal. Psychrolutes sio represents the first record of the genus Psychrolutes to be recognized from the Southern Hemisphere. However, future studies may indicate that other southern psychrolutids of the genera Neophrynichthys and Cottunculoides should also be assigned to Psychrolutes.


Check List ◽  
2018 ◽  
Vol 14 (4) ◽  
pp. 601-607 ◽  
Author(s):  
M. Mónica Díaz ◽  
R. Tatiana Sanchez ◽  
Mirna Oviedo ◽  
Rubén Marcos Barquez

Here, we present the first record of Eptesicus brasiliensis argentinus Thomas, 1920 for the province of Entre Ríos, Argentina. This subspecies was originally described as a full species (E. argentinus) based on its morphological features that clearly separate it from all other species of the genus. However, it was later treated as a subspecies of E. brasiliensis by Cabrera (1957), a treatment that was followed by all authors until today. Our record raises the number of bat species for the province of Entre Ríos to 21. This locality represents the fourth record for this subspecies in Argentina, after 35 years since the last known record was obtained. Its geographic range is extended by approximately 130 km to the south, which represents the southernmost known record for this subspecies, and a new ecoregion, the Espinal, is added to its distribution.


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