INSUGEO   12554
INSTITUTO SUPERIOR DE CORRELACION GEOLOGICA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
New records of telephinid trilobites (Carolinites and Oopsites) from the Ordovician of the Central Andean Basin
Autor/es:
GUTIÉRREZ-MARCO, J.C., RÁBANO I., ACEÑOLAZA, G.F. & GARCÍA-BELLIDO, D.C
Lugar:
Praga
Reunión:
Conferencia; 5th International Conference on trilobites and their revaltives; 2012
Institución organizadora:
Czech Geological Survey & Charles University
Resumen:
Epipelagic telephinids rarely occur in mid to high paleolatitudinal settings during the Ordovician. Extremely widespread taxa such as Carolinites genacinaca span the entire palaeotropical realm (McCormick and Fortey, 1999), while others, like the genus Telephina, seem restricted to the periphery of the continental paleoplates (Ahlberg, 1995). The record of telephinids in the Ordovician of South America starts with the discovery of “Keidelia” (=Carolinites genacinaca span the entire palaeotropical realm (McCormick and Fortey, 1999), while others, like the genus Telephina, seem restricted to the periphery of the continental paleoplates (Ahlberg, 1995). The record of telephinids in the Ordovician of South America starts with the discovery of “Keidelia” (=Telephina, seem restricted to the periphery of the continental paleoplates (Ahlberg, 1995). The record of telephinids in the Ordovician of South America starts with the discovery of “Keidelia” (=Keidelia” (= Carolinites) macrophtalma by Harrington and Leanza (1957) and Telephina argentina by Baldis and Blasco (1974) in the Argentinian Precordillera, plus “Tafnaspis” (= Carolinites) iglesiasi by Leanza and Baldis (1975) in the eastern Puna belt of the same country. With the exception of a single occurrence of Carolinites genacinaca Ross from the Lower Ordovician of Bolivia (Aceñolaza et al., 1999), the remaining South American telephinids were reported from Argentina, where they occur throughout the Floian-Sandbian of the Precordillera (Carolinites macrophthalma, C. killaryensis (Stubblefield), C. constrictus Benedetto and Cañas, Telephina argentina Baldis and Blasco, T. calandria Chatterton et al., T. chingolo) macrophtalma by Harrington and Leanza (1957) and Telephina argentina by Baldis and Blasco (1974) in the Argentinian Precordillera, plus “Tafnaspis” (= Carolinites) iglesiasi by Leanza and Baldis (1975) in the eastern Puna belt of the same country. With the exception of a single occurrence of Carolinites genacinaca Ross from the Lower Ordovician of Bolivia (Aceñolaza et al., 1999), the remaining South American telephinids were reported from Argentina, where they occur throughout the Floian-Sandbian of the Precordillera (Carolinites macrophthalma, C. killaryensis (Stubblefield), C. constrictus Benedetto and Cañas, Telephina argentina Baldis and Blasco, T. calandria Chatterton et al., T. chingoloTafnaspis” (= Carolinites) iglesiasi by Leanza and Baldis (1975) in the eastern Puna belt of the same country. With the exception of a single occurrence of Carolinites genacinaca Ross from the Lower Ordovician of Bolivia (Aceñolaza et al., 1999), the remaining South American telephinids were reported from Argentina, where they occur throughout the Floian-Sandbian of the Precordillera (Carolinites macrophthalma, C. killaryensis (Stubblefield), C. constrictus Benedetto and Cañas, Telephina argentina Baldis and Blasco, T. calandria Chatterton et al., T. chingoloCarolinites genacinaca Ross from the Lower Ordovician of Bolivia (Aceñolaza et al., 1999), the remaining South American telephinids were reported from Argentina, where they occur throughout the Floian-Sandbian of the Precordillera (Carolinites macrophthalma, C. killaryensis (Stubblefield), C. constrictus Benedetto and Cañas, Telephina argentina Baldis and Blasco, T. calandria Chatterton et al., T. chingoloet al., 1999), the remaining South American telephinids were reported from Argentina, where they occur throughout the Floian-Sandbian of the Precordillera (Carolinites macrophthalma, C. killaryensis (Stubblefield), C. constrictus Benedetto and Cañas, Telephina argentina Baldis and Blasco, T. calandria Chatterton et al., T. chingoloCarolinites macrophthalma, C. killaryensis (Stubblefield), C. constrictus Benedetto and Cañas, Telephina argentina Baldis and Blasco, T. calandria Chatterton et al., T. chingoloBenedetto and Cañas, Telephina argentina Baldis and Blasco, T. calandria Chatterton et al., T. chingolo Chatterton et al. and T. problematica Chatterton et al.), as well as in the Lower Ordovician of the Famatina Basin (C. cf.et al. and T. problematica Chatterton et al.), as well as in the Lower Ordovician of the Famatina Basin (C. cf. genacinaca and Oopsites sp.): see Benedetto et al. (1986), Vaccari and Waisfeld (1994), Chatterton et al. (1989) and Waisfeld and Vaccari (2003). In the Argentinian part of the Central Andean Basin, Carolinites was known from three Lower Ordovician localities in the Jujuy province: one in the eastern Puna (C. iglesiasi of Leanza and Baldis, 1975) and two others in the Cordillera Oriental (Carolinites sp. of Waisfeld and Vaccari, 2003). We here confirm the occurrence of Carolinites genacinaca in carbonate coquinas from the type section of the Sella Formation of the Cordillera Oriental of Bolivia, adding some new specimens (two cranidia and a pygidium) to the single cranidium illustrated by Aceñolaza et al. (1999) for the same locality. Also we report the first record of Oopsites in the Cordillera Oriental of southeastern Peru, occurring in Lower Ordovician siltstones of the San José Formation in a section located in the Apurímac river valley, northwest of the well-known site of Machu Picchu. Both finds represent the northernmost occurrences of the genera Carolinites and Oopsites in present day South America, reported within the late Floian-early Dapingian Famatinolithus Fauna, which is assigned to intermediate paleolatitudes along the Famatinian and Central Andean basins (Benedetto et al., 2009). The rare record of these telephinids has been related to warm water currents, probably due to equatorial surface gyres moving southwards and sporadically carrying epipelagic trilobites away from the tropics (McCormick and Fortey, 1999). This is argued by the latter authors to explain the individual records of Carolinites in the Lower Ordovician of southeastern France and Turkey. This research was funded by the Spanish Ministry of Economy and Competitiveness (Project CGL2009- 09583/BTE, lead by E. Villas), and is also a contribution to the IGCP Project 591 (IUGS-UNESCO).and Oopsites sp.): see Benedetto et al. (1986), Vaccari and Waisfeld (1994), Chatterton et al. (1989) and Waisfeld and Vaccari (2003). In the Argentinian part of the Central Andean Basin, Carolinites was known from three Lower Ordovician localities in the Jujuy province: one in the eastern Puna (C. iglesiasi of Leanza and Baldis, 1975) and two others in the Cordillera Oriental (Carolinites sp. of Waisfeld and Vaccari, 2003). We here confirm the occurrence of Carolinites genacinaca in carbonate coquinas from the type section of the Sella Formation of the Cordillera Oriental of Bolivia, adding some new specimens (two cranidia and a pygidium) to the single cranidium illustrated by Aceñolaza et al. (1999) for the same locality. Also we report the first record of Oopsites in the Cordillera Oriental of southeastern Peru, occurring in Lower Ordovician siltstones of the San José Formation in a section located in the Apurímac river valley, northwest of the well-known site of Machu Picchu. Both finds represent the northernmost occurrences of the genera Carolinites and Oopsites in present day South America, reported within the late Floian-early Dapingian Famatinolithus Fauna, which is assigned to intermediate paleolatitudes along the Famatinian and Central Andean basins (Benedetto et al., 2009). The rare record of these telephinids has been related to warm water currents, probably due to equatorial surface gyres moving southwards and sporadically carrying epipelagic trilobites away from the tropics (McCormick and Fortey, 1999). This is argued by the latter authors to explain the individual records of Carolinites in the Lower Ordovician of southeastern France and Turkey. This research was funded by the Spanish Ministry of Economy and Competitiveness (Project CGL2009- 09583/BTE, lead by E. Villas), and is also a contribution to the IGCP Project 591 (IUGS-UNESCO).Carolinites was known from three Lower Ordovician localities in the Jujuy province: one in the eastern Puna (C. iglesiasi of Leanza and Baldis, 1975) and two others in the Cordillera Oriental (Carolinites sp. of Waisfeld and Vaccari, 2003). We here confirm the occurrence of Carolinites genacinaca in carbonate coquinas from the type section of the Sella Formation of the Cordillera Oriental of Bolivia, adding some new specimens (two cranidia and a pygidium) to the single cranidium illustrated by Aceñolaza et al. (1999) for the same locality. Also we report the first record of Oopsites in the Cordillera Oriental of southeastern Peru, occurring in Lower Ordovician siltstones of the San José Formation in a section located in the Apurímac river valley, northwest of the well-known site of Machu Picchu. Both finds represent the northernmost occurrences of the genera Carolinites and Oopsites in present day South America, reported within the late Floian-early Dapingian Famatinolithus Fauna, which is assigned to intermediate paleolatitudes along the Famatinian and Central Andean basins (Benedetto et al., 2009). The rare record of these telephinids has been related to warm water currents, probably due to equatorial surface gyres moving southwards and sporadically carrying epipelagic trilobites away from the tropics (McCormick and Fortey, 1999). This is argued by the latter authors to explain the individual records of Carolinites in the Lower Ordovician of southeastern France and Turkey. This research was funded by the Spanish Ministry of Economy and Competitiveness (Project CGL2009- 09583/BTE, lead by E. Villas), and is also a contribution to the IGCP Project 591 (IUGS-UNESCO).C. iglesiasi of Leanza and Baldis, 1975) and two others in the Cordillera Oriental (Carolinites sp. of Waisfeld and Vaccari, 2003). We here confirm the occurrence of Carolinites genacinaca in carbonate coquinas from the type section of the Sella Formation of the Cordillera Oriental of Bolivia, adding some new specimens (two cranidia and a pygidium) to the single cranidium illustrated by Aceñolaza et al. (1999) for the same locality. Also we report the first record of Oopsites in the Cordillera Oriental of southeastern Peru, occurring in Lower Ordovician siltstones of the San José Formation in a section located in the Apurímac river valley, northwest of the well-known site of Machu Picchu. Both finds represent the northernmost occurrences of the genera Carolinites and Oopsites in present day South America, reported within the late Floian-early Dapingian Famatinolithus Fauna, which is assigned to intermediate paleolatitudes along the Famatinian and Central Andean basins (Benedetto et al., 2009). The rare record of these telephinids has been related to warm water currents, probably due to equatorial surface gyres moving southwards and sporadically carrying epipelagic trilobites away from the tropics (McCormick and Fortey, 1999). This is argued by the latter authors to explain the individual records of Carolinites in the Lower Ordovician of southeastern France and Turkey. This research was funded by the Spanish Ministry of Economy and Competitiveness (Project CGL2009- 09583/BTE, lead by E. Villas), and is also a contribution to the IGCP Project 591 (IUGS-UNESCO).Carolinites sp. of Waisfeld and Vaccari, 2003). We here confirm the occurrence of Carolinites genacinaca in carbonate coquinas from the type section of the Sella Formation of the Cordillera Oriental of Bolivia, adding some new specimens (two cranidia and a pygidium) to the single cranidium illustrated by Aceñolaza et al. (1999) for the same locality. Also we report the first record of Oopsites in the Cordillera Oriental of southeastern Peru, occurring in Lower Ordovician siltstones of the San José Formation in a section located in the Apurímac river valley, northwest of the well-known site of Machu Picchu. Both finds represent the northernmost occurrences of the genera Carolinites and Oopsites in present day South America, reported within the late Floian-early Dapingian Famatinolithus Fauna, which is assigned to intermediate paleolatitudes along the Famatinian and Central Andean basins (Benedetto et al., 2009). The rare record of these telephinids has been related to warm water currents, probably due to equatorial surface gyres moving southwards and sporadically carrying epipelagic trilobites away from the tropics (McCormick and Fortey, 1999). This is argued by the latter authors to explain the individual records of Carolinites in the Lower Ordovician of southeastern France and Turkey. This research was funded by the Spanish Ministry of Economy and Competitiveness (Project CGL2009- 09583/BTE, lead by E. Villas), and is also a contribution to the IGCP Project 591 (IUGS-UNESCO).Carolinites genacinaca in carbonate coquinas from the type section of the Sella Formation of the Cordillera Oriental of Bolivia, adding some new specimens (two cranidia and a pygidium) to the single cranidium illustrated by Aceñolaza et al. (1999) for the same locality. Also we report the first record of Oopsites in the Cordillera Oriental of southeastern Peru, occurring in Lower Ordovician siltstones of the San José Formation in a section located in the Apurímac river valley, northwest of the well-known site of Machu Picchu. Both finds represent the northernmost occurrences of the genera Carolinites and Oopsites in present day South America, reported within the late Floian-early Dapingian Famatinolithus Fauna, which is assigned to intermediate paleolatitudes along the Famatinian and Central Andean basins (Benedetto et al., 2009). The rare record of these telephinids has been related to warm water currents, probably due to equatorial surface gyres moving southwards and sporadically carrying epipelagic trilobites away from the tropics (McCormick and Fortey, 1999). This is argued by the latter authors to explain the individual records of Carolinites in the Lower Ordovician of southeastern France and Turkey. This research was funded by the Spanish Ministry of Economy and Competitiveness (Project CGL2009- 09583/BTE, lead by E. Villas), and is also a contribution to the IGCP Project 591 (IUGS-UNESCO).et al. (1999) for the same locality. Also we report the first record of Oopsites in the Cordillera Oriental of southeastern Peru, occurring in Lower Ordovician siltstones of the San José Formation in a section located in the Apurímac river valley, northwest of the well-known site of Machu Picchu. Both finds represent the northernmost occurrences of the genera Carolinites and Oopsites in present day South America, reported within the late Floian-early Dapingian Famatinolithus Fauna, which is assigned to intermediate paleolatitudes along the Famatinian and Central Andean basins (Benedetto et al., 2009). The rare record of these telephinids has been related to warm water currents, probably due to equatorial surface gyres moving southwards and sporadically carrying epipelagic trilobites away from the tropics (McCormick and Fortey, 1999). This is argued by the latter authors to explain the individual records of Carolinites in the Lower Ordovician of southeastern France and Turkey. This research was funded by the Spanish Ministry of Economy and Competitiveness (Project CGL2009- 09583/BTE, lead by E. Villas), and is also a contribution to the IGCP Project 591 (IUGS-UNESCO).Carolinites and Oopsites in present day South America, reported within the late Floian-early Dapingian Famatinolithus Fauna, which is assigned to intermediate paleolatitudes along the Famatinian and Central Andean basins (Benedetto et al., 2009). The rare record of these telephinids has been related to warm water currents, probably due to equatorial surface gyres moving southwards and sporadically carrying epipelagic trilobites away from the tropics (McCormick and Fortey, 1999). This is argued by the latter authors to explain the individual records of Carolinites in the Lower Ordovician of southeastern France and Turkey. This research was funded by the Spanish Ministry of Economy and Competitiveness (Project CGL2009- 09583/BTE, lead by E. Villas), and is also a contribution to the IGCP Project 591 (IUGS-UNESCO).Famatinolithus Fauna, which is assigned to intermediate paleolatitudes along the Famatinian and Central Andean basins (Benedetto et al., 2009). The rare record of these telephinids has been related to warm water currents, probably due to equatorial surface gyres moving southwards and sporadically carrying epipelagic trilobites away from the tropics (McCormick and Fortey, 1999). This is argued by the latter authors to explain the individual records of Carolinites in the Lower Ordovician of southeastern France and Turkey. This research was funded by the Spanish Ministry of Economy and Competitiveness (Project CGL2009- 09583/BTE, lead by E. Villas), and is also a contribution to the IGCP Project 591 (IUGS-UNESCO).et al., 2009). The rare record of these telephinids has been related to warm water currents, probably due to equatorial surface gyres moving southwards and sporadically carrying epipelagic trilobites away from the tropics (McCormick and Fortey, 1999). This is argued by the latter authors to explain the individual records of Carolinites in the Lower Ordovician of southeastern France and Turkey. This research was funded by the Spanish Ministry of Economy and Competitiveness (Project CGL2009- 09583/BTE, lead by E. Villas), and is also a contribution to the IGCP Project 591 (IUGS-UNESCO).Carolinites in the Lower Ordovician of southeastern France and Turkey. This research was funded by the Spanish Ministry of Economy and Competitiveness (Project CGL2009- 09583/BTE, lead by E. Villas), and is also a contribution to the IGCP Project 591 (IUGS-UNESCO).