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Amson Eli - One of the best experts on this subject based on the ideXlab platform.
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The southernmost occurrence of the Aquatic Sloth Thalassocnus (mammalia, tardigrada) in two new pliocene localities in Chile
'Asociacion Paleontologica Argentina', 2017Co-Authors: Arcos, Saleta De Los, Partarrieu Bravo, Diego Martín, Carrillo Briceño Jorge, Amson EliAbstract:Thalassocnus is a sloth (Mammalia, Tardigrada) adapted to an aquatic lifestyle. It was first described from the Neogene deposits of the Pisco Formation of Peru, from where most of the specimens come. The genus is represented by five species ranging from the late Miocene to the late Pliocene, occupying successive stratigraphic levels. Morpho-functional studies of the cranial and postcranial skeleton of Thalassocnus have demonstrated the progressive adaptation of these sloths to a marine environment, establishing gradual differences from from the geologically oldest to the youngest species of the genus. The first records of Thalassocnus outside the Pisco Formation have been referred to the Neogene Bahia Inglesa Formation, in northern Chile, where older species were recovered. In this paper, we describe Materials from two new Pliocene localities in Chile: the Coquimbo and the Horcon Formations, in northern and central Chile, respectively. The Coquimbo Formation Material was collected from the Lomas del Sauce locality and consists of a partial skeleton of a single individual. Detailed comparisons of the elements with diagnostic features enabled the referral of this specimen to T. carolomartini. The Material from the Horcon Formation was collected from the Playa La Luna locality and consists of an isolated phalanx, which is attributed to one of the species of Thalassocnus younger than T. natans. Thus, we present the first record of younger species of Thalassocnus in Chile and the southernmost occurrence of the genus.Terra Ignota CONICYT (CONICYT-PCHA/Doctorado Nacional) 2015-21151267 Swiss National Fund award SNF 31003A_149605 Alexander von Humboldt Foundation Prodelc
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The southernmost occurrence of the aquatic sloth thalassocnus (Mammalia, Tardigrada) in two new pliocene localities in Chile
BioOne, 2017Co-Authors: Arcos, Saleta De Los, Carrillo Briceño Jorge, Partarrieu Diego, Amson EliAbstract:Thalassocnus is a sloth (Mammalia, Tardigrada) adapted to an aquatic lifestyle. It was first described from the Neogene deposits of the Pisco Formation of Peru, from where most of the specimens come. The genus is represented by five species ranging from the late Miocene to the late Pliocene, occupying successive stratigraphic levels. Morpho-functional studies of the cranial and postcranial skeleton of Thalassocnus have demonstrated the progressive adaptation of these sloths to a marine environment, establishing gradual differences from from the geologically oldest to the youngest species of the genus. The first records of Thalassocnus outside the Pisco Formation have been referred to the Neogene Bahía Inglesa Formation, in northern Chile, where older species were recovered. In this paper, we describe Materials from two new Pliocene localities in Chile: the Coquimbo and the Horcón Formations, in northern and central Chile, respectively. The Coquimbo Formation Material was collected from the Lomas del Sauce locality and consists of a partial skeleton of a single individual. Detailed comparisons of the elements with diagnostic features enabled the referral of this specimen to T. carolomartini. The Material from the Horcón Formation was collected from the Playa La Luna locality and consists of an isolated phalanx, which is attributed to one of the species of Thalassocnus younger than T. natans. Thus, we present the first record of younger species of Thalassocnus in Chile and the southernmost occurrence of the genus. Key words. Coquimbo Formation. Horcón Formation. Marine assemblage. Tardigrada. Thalassocnus. Xenarthra. Resumen. EL HALLAZGO MÁS MERIDIONAL DEL PEREZOSO MARINO THALASSOCNUS (MAMMALIA, TARDIGRADA) EN DOS NUEVAS LOCALIDADES DEL PLIOCENO DE CHILE. Thalassocnus es un perezoso (Mammalia, Tardigrada) adaptado al medio acuático que fue descrito por primera vez en depósitos neógenos de la Formación Pisco en Perú, de la cual procede la mayor parte de los especímenes conocidos. El género está representado por cinco especies, que se extienden desde el Mioceno tardío al Plioceno tardío, ocupando niveles estratigráficos sucesivos. Estudios morfo-funcionales del esqueleto craneal y postcraneal de Thalassocnus han permitido constatar la progresiva adaptación de este perezoso al medio acuático, desde las especies geológicamente más antiguas a las más recientes. Los primeros registros de Thalassocnus fuera de la Formación Pisco corresponden a la Formación Bahía Inglesa, del Neógeno del Norte de Chile, y fueron asignados a las especies antiguas. En este trabajo describimos Material de Thalassocnus procedente de dos nuevas localidades en depósitos pliocenos de las formaciones Coquimbo y Horcón, del Norte y Centro de Chile respectivamente. El Material de la Formación Coquimbo proviene de la localidad Lomas del Sauce y pertenece a un único individuo que conserva buena parte del esqueleto postcraneal. La comparación detallada de aquellos elementos óseos con características diagnósticas ha permitido asignarlo a T. carolomartini. El Material de la Formación Horcón, colectado en la localidad Playa La Luna, es una falange aislada, que fue asignada a alguna de las especies más recientes que T. natans. Se muestran por tanto los registros más meridionales de Thalassocnus y los primeros de las especies recientes en Chile. Palabras clave. Formación Coquimbo. Formación Horcón. Ensamble marino. Tardigrada. Thalassocnus. Xenarthra
Arcos, Saleta De Los - One of the best experts on this subject based on the ideXlab platform.
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The southernmost occurrence of the Aquatic Sloth Thalassocnus (mammalia, tardigrada) in two new pliocene localities in Chile
'Asociacion Paleontologica Argentina', 2017Co-Authors: Arcos, Saleta De Los, Partarrieu Bravo, Diego Martín, Carrillo Briceño Jorge, Amson EliAbstract:Thalassocnus is a sloth (Mammalia, Tardigrada) adapted to an aquatic lifestyle. It was first described from the Neogene deposits of the Pisco Formation of Peru, from where most of the specimens come. The genus is represented by five species ranging from the late Miocene to the late Pliocene, occupying successive stratigraphic levels. Morpho-functional studies of the cranial and postcranial skeleton of Thalassocnus have demonstrated the progressive adaptation of these sloths to a marine environment, establishing gradual differences from from the geologically oldest to the youngest species of the genus. The first records of Thalassocnus outside the Pisco Formation have been referred to the Neogene Bahia Inglesa Formation, in northern Chile, where older species were recovered. In this paper, we describe Materials from two new Pliocene localities in Chile: the Coquimbo and the Horcon Formations, in northern and central Chile, respectively. The Coquimbo Formation Material was collected from the Lomas del Sauce locality and consists of a partial skeleton of a single individual. Detailed comparisons of the elements with diagnostic features enabled the referral of this specimen to T. carolomartini. The Material from the Horcon Formation was collected from the Playa La Luna locality and consists of an isolated phalanx, which is attributed to one of the species of Thalassocnus younger than T. natans. Thus, we present the first record of younger species of Thalassocnus in Chile and the southernmost occurrence of the genus.Terra Ignota CONICYT (CONICYT-PCHA/Doctorado Nacional) 2015-21151267 Swiss National Fund award SNF 31003A_149605 Alexander von Humboldt Foundation Prodelc
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The southernmost occurrence of the aquatic sloth thalassocnus (Mammalia, Tardigrada) in two new pliocene localities in Chile
BioOne, 2017Co-Authors: Arcos, Saleta De Los, Carrillo Briceño Jorge, Partarrieu Diego, Amson EliAbstract:Thalassocnus is a sloth (Mammalia, Tardigrada) adapted to an aquatic lifestyle. It was first described from the Neogene deposits of the Pisco Formation of Peru, from where most of the specimens come. The genus is represented by five species ranging from the late Miocene to the late Pliocene, occupying successive stratigraphic levels. Morpho-functional studies of the cranial and postcranial skeleton of Thalassocnus have demonstrated the progressive adaptation of these sloths to a marine environment, establishing gradual differences from from the geologically oldest to the youngest species of the genus. The first records of Thalassocnus outside the Pisco Formation have been referred to the Neogene Bahía Inglesa Formation, in northern Chile, where older species were recovered. In this paper, we describe Materials from two new Pliocene localities in Chile: the Coquimbo and the Horcón Formations, in northern and central Chile, respectively. The Coquimbo Formation Material was collected from the Lomas del Sauce locality and consists of a partial skeleton of a single individual. Detailed comparisons of the elements with diagnostic features enabled the referral of this specimen to T. carolomartini. The Material from the Horcón Formation was collected from the Playa La Luna locality and consists of an isolated phalanx, which is attributed to one of the species of Thalassocnus younger than T. natans. Thus, we present the first record of younger species of Thalassocnus in Chile and the southernmost occurrence of the genus. Key words. Coquimbo Formation. Horcón Formation. Marine assemblage. Tardigrada. Thalassocnus. Xenarthra. Resumen. EL HALLAZGO MÁS MERIDIONAL DEL PEREZOSO MARINO THALASSOCNUS (MAMMALIA, TARDIGRADA) EN DOS NUEVAS LOCALIDADES DEL PLIOCENO DE CHILE. Thalassocnus es un perezoso (Mammalia, Tardigrada) adaptado al medio acuático que fue descrito por primera vez en depósitos neógenos de la Formación Pisco en Perú, de la cual procede la mayor parte de los especímenes conocidos. El género está representado por cinco especies, que se extienden desde el Mioceno tardío al Plioceno tardío, ocupando niveles estratigráficos sucesivos. Estudios morfo-funcionales del esqueleto craneal y postcraneal de Thalassocnus han permitido constatar la progresiva adaptación de este perezoso al medio acuático, desde las especies geológicamente más antiguas a las más recientes. Los primeros registros de Thalassocnus fuera de la Formación Pisco corresponden a la Formación Bahía Inglesa, del Neógeno del Norte de Chile, y fueron asignados a las especies antiguas. En este trabajo describimos Material de Thalassocnus procedente de dos nuevas localidades en depósitos pliocenos de las formaciones Coquimbo y Horcón, del Norte y Centro de Chile respectivamente. El Material de la Formación Coquimbo proviene de la localidad Lomas del Sauce y pertenece a un único individuo que conserva buena parte del esqueleto postcraneal. La comparación detallada de aquellos elementos óseos con características diagnósticas ha permitido asignarlo a T. carolomartini. El Material de la Formación Horcón, colectado en la localidad Playa La Luna, es una falange aislada, que fue asignada a alguna de las especies más recientes que T. natans. Se muestran por tanto los registros más meridionales de Thalassocnus y los primeros de las especies recientes en Chile. Palabras clave. Formación Coquimbo. Formación Horcón. Ensamble marino. Tardigrada. Thalassocnus. Xenarthra
Paolo Golino - One of the best experts on this subject based on the ideXlab platform.
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Abstract 14366: T-lymphocytes May Contribute to Thrombus Formation in Patients With Acute Coronary Syndrome via Expression of Tissue Factor
Circulation, 2015Co-Authors: Giovanni Cimmino, Stefano Conte, Grazia Pellegrino, Plinio Cirillo, Gaetano Cali, Giovanni Ciccarelli, Luigi Insabato, Paolo GolinoAbstract:Background: Activation of T-cells plays an important role in the pathophysiology of acute coronary syndromes (ACS). We have previously shown that plaques from ACS patients are characterized by a selective oligoclonal expansion of T-cells, indicating a specific, antigen-mediated recruitment of T-cells within the unstable lesions. We have also previously reported that activated T-cells in vitro express functional Tissue Factor (TF) on their surface. At the moment, however it is not known whether expression of TF by T-cells may contribute to thrombus Formation in vivo. Methods: Blood was collected from the aorta and the coronary sinus of 13 NSTEMI and 10 stable CAD patients. CD3+ cells were selectively isolated and TF gene expression (real time PCR)and protein levels (western blot) were evaluated. In additional 7 STEMI patients, thrombotic Formation Material was obtained from the occluded coronary artery by catheter aspiration during primary PCI. TF expression in CD3+ cells was evaluated by immunohistochemistry and confocal microscopy. Results: Transcardiac TF expression in CD3+ cells was significantly higher in NSTEMI patients as compared to CD3+ cells obtained from stable CAD patients. Interestingly, thrombi aspirated from STEMI patients resulted enriched in CD3+cells, which expressed TF on their surface as shown in the figure. Conclusions: Our data demonstrate that in patients with ACS, T-lymphocytes may express surface TF, thus contributing to the process of thrombus Formation. This finding may shed new light into the pathophysiologyof ACS. ![][1] [1]: /embed/graphic-1.gif
Eli Amson - One of the best experts on this subject based on the ideXlab platform.
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The Southernmost Occurrence of the Aquatic Sloth Thalassocnus (Mammalia, Tardigrada) in Two New Pliocene Localities in Chile
Ameghiniana, 2017Co-Authors: Saleta De Los Arcos, Diego Partarrieu, Jorge D. Carrillo-briceño, Eli AmsonAbstract:Abstract. Thalassocnus is a sloth (Mammalia, Tardigrada) adapted to an aquatic lifestyle. It was first described from the Neogene deposits of the Pisco Formation of Peru, from where most of the specimens come. The genus is represented by five species ranging from the late Miocene to the late Pliocene, occupying successive stratigraphic levels. Morpho-functional studies of the cranial and postcranial skeleton of Thalassocnus have demonstrated the progressive adaptation of these sloths to a marine environment, establishing gradual differences from from the geologically oldest to the youngest species of the genus. The first records of Thalassocnus outside the Pisco Formation have been referred to the Neogene Bahia Inglesa Formation, in northern Chile, where older species were recovered. In this paper, we describe Materials from two new Pliocene localities in Chile: the Coquimbo and the Horcon Formations, in northern and central Chile, respectively. The Coquimbo Formation Material was collected from the Lomas...
Carrillo Briceño Jorge - One of the best experts on this subject based on the ideXlab platform.
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The southernmost occurrence of the Aquatic Sloth Thalassocnus (mammalia, tardigrada) in two new pliocene localities in Chile
'Asociacion Paleontologica Argentina', 2017Co-Authors: Arcos, Saleta De Los, Partarrieu Bravo, Diego Martín, Carrillo Briceño Jorge, Amson EliAbstract:Thalassocnus is a sloth (Mammalia, Tardigrada) adapted to an aquatic lifestyle. It was first described from the Neogene deposits of the Pisco Formation of Peru, from where most of the specimens come. The genus is represented by five species ranging from the late Miocene to the late Pliocene, occupying successive stratigraphic levels. Morpho-functional studies of the cranial and postcranial skeleton of Thalassocnus have demonstrated the progressive adaptation of these sloths to a marine environment, establishing gradual differences from from the geologically oldest to the youngest species of the genus. The first records of Thalassocnus outside the Pisco Formation have been referred to the Neogene Bahia Inglesa Formation, in northern Chile, where older species were recovered. In this paper, we describe Materials from two new Pliocene localities in Chile: the Coquimbo and the Horcon Formations, in northern and central Chile, respectively. The Coquimbo Formation Material was collected from the Lomas del Sauce locality and consists of a partial skeleton of a single individual. Detailed comparisons of the elements with diagnostic features enabled the referral of this specimen to T. carolomartini. The Material from the Horcon Formation was collected from the Playa La Luna locality and consists of an isolated phalanx, which is attributed to one of the species of Thalassocnus younger than T. natans. Thus, we present the first record of younger species of Thalassocnus in Chile and the southernmost occurrence of the genus.Terra Ignota CONICYT (CONICYT-PCHA/Doctorado Nacional) 2015-21151267 Swiss National Fund award SNF 31003A_149605 Alexander von Humboldt Foundation Prodelc
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The southernmost occurrence of the aquatic sloth thalassocnus (Mammalia, Tardigrada) in two new pliocene localities in Chile
BioOne, 2017Co-Authors: Arcos, Saleta De Los, Carrillo Briceño Jorge, Partarrieu Diego, Amson EliAbstract:Thalassocnus is a sloth (Mammalia, Tardigrada) adapted to an aquatic lifestyle. It was first described from the Neogene deposits of the Pisco Formation of Peru, from where most of the specimens come. The genus is represented by five species ranging from the late Miocene to the late Pliocene, occupying successive stratigraphic levels. Morpho-functional studies of the cranial and postcranial skeleton of Thalassocnus have demonstrated the progressive adaptation of these sloths to a marine environment, establishing gradual differences from from the geologically oldest to the youngest species of the genus. The first records of Thalassocnus outside the Pisco Formation have been referred to the Neogene Bahía Inglesa Formation, in northern Chile, where older species were recovered. In this paper, we describe Materials from two new Pliocene localities in Chile: the Coquimbo and the Horcón Formations, in northern and central Chile, respectively. The Coquimbo Formation Material was collected from the Lomas del Sauce locality and consists of a partial skeleton of a single individual. Detailed comparisons of the elements with diagnostic features enabled the referral of this specimen to T. carolomartini. The Material from the Horcón Formation was collected from the Playa La Luna locality and consists of an isolated phalanx, which is attributed to one of the species of Thalassocnus younger than T. natans. Thus, we present the first record of younger species of Thalassocnus in Chile and the southernmost occurrence of the genus. Key words. Coquimbo Formation. Horcón Formation. Marine assemblage. Tardigrada. Thalassocnus. Xenarthra. Resumen. EL HALLAZGO MÁS MERIDIONAL DEL PEREZOSO MARINO THALASSOCNUS (MAMMALIA, TARDIGRADA) EN DOS NUEVAS LOCALIDADES DEL PLIOCENO DE CHILE. Thalassocnus es un perezoso (Mammalia, Tardigrada) adaptado al medio acuático que fue descrito por primera vez en depósitos neógenos de la Formación Pisco en Perú, de la cual procede la mayor parte de los especímenes conocidos. El género está representado por cinco especies, que se extienden desde el Mioceno tardío al Plioceno tardío, ocupando niveles estratigráficos sucesivos. Estudios morfo-funcionales del esqueleto craneal y postcraneal de Thalassocnus han permitido constatar la progresiva adaptación de este perezoso al medio acuático, desde las especies geológicamente más antiguas a las más recientes. Los primeros registros de Thalassocnus fuera de la Formación Pisco corresponden a la Formación Bahía Inglesa, del Neógeno del Norte de Chile, y fueron asignados a las especies antiguas. En este trabajo describimos Material de Thalassocnus procedente de dos nuevas localidades en depósitos pliocenos de las formaciones Coquimbo y Horcón, del Norte y Centro de Chile respectivamente. El Material de la Formación Coquimbo proviene de la localidad Lomas del Sauce y pertenece a un único individuo que conserva buena parte del esqueleto postcraneal. La comparación detallada de aquellos elementos óseos con características diagnósticas ha permitido asignarlo a T. carolomartini. El Material de la Formación Horcón, colectado en la localidad Playa La Luna, es una falange aislada, que fue asignada a alguna de las especies más recientes que T. natans. Se muestran por tanto los registros más meridionales de Thalassocnus y los primeros de las especies recientes en Chile. Palabras clave. Formación Coquimbo. Formación Horcón. Ensamble marino. Tardigrada. Thalassocnus. Xenarthra