Ana Márquez Aliaga | University of Valencia, Spain (original) (raw)
Papers by Ana Márquez Aliaga
Yacimientos Paleontológicos Excepcionales en la Península Ibérica: XXXIV Jornadas de Paleontología y IV Congreso Ibérico de Paleontología, 2018, ISBN 978-84-9138-066-5, págs. 137-141, 2018
Spanish Journal of Palaeontology
En el Triásico del sector central de la Cordillera Bética se pueden diferenciar, a grandes rasgos... more En el Triásico del sector central de la Cordillera Bética se pueden diferenciar, a grandes rasgos, tres tipos de facies litológicas: carbonatos (facies Muschelkalk), terrígenos (facies Keuper), evaporitas (facies Keuper). El estudio de varios afloramientos en este área ha supuesto un mayor conocimiento de los aspectos paleoecológicos del Trías, y ha permitido la revisión bioestratigráfica de las series. En el tramo carbonatado, el registro fósil está constituido en su mayoría por moluscos y braquiópodos. La asociación de bivalvos encontrada puede atribuirse al Ladiniense medio-superior, por la presencia de Coslatoria goldfussi y Enantiostreon flabellum, formas características de los tramos terminales del Ladiniense en el sector occidental del Dominio Sefardí. En conjunto, el registro es muy escaso y la preservación de los fósiles es, en general, deficiente. La mayor parte de la fauna se encuentra en las capas terminales del Muschelkalk, en niveles de calizas-margosas con intercalaci...
Geotemas ( Madrid ), 2005
The finding of ammonoids and bivalves in the deposits of the Triassic-Jurassic (T-J) transition i... more The finding of ammonoids and bivalves in the deposits of the Triassic-Jurassic (T-J) transition in the Gijon Formation (Asturias) allowed of the biostratigraphy and chronostratigraphy of the Rhaetian and the Tettangian. Among the ammonoids, the record of an Arcestidae (Rhaetian) and several Psiloceras (Hettagian, Planorbis Zone) in the upper part of the Solis Member can be stand out. The domain Rhaetian bivalves are Isocyprima concentrica and Bakevillia praecursor. These species, together with Isocyprina ewaldi, "Pteromorphus" elongatus, Pteromya longportensis, Placunopsis cf. alpina, Modiolus minimus and Paleocardita cf. austriaca, represents a similar assemblages to that found in the Westbury and Lilstok formations (Penarth Group) in the late Rhaetian of southern England. The Hettangian bivalves are represented by the widley distributed species Pteromya tatei, which is associated to Cuneigervillia rhombica, Parallelodon hettangiensis and Eomiodos menkei. This assembalge is known in the Hettangian Planorbis Zone of France and Germany. As a consequence, the T-J- boundary has been located within the upper part of the Solis Member of the Gijon Formation.
The aim of this paper is to present one easy and low-cost expositive techniques, the anaglyph pho... more The aim of this paper is to present one easy and low-cost expositive techniques, the anaglyph photography. This technique can be very useful in a museum of paleontology to make attractive to all kind of public some not very showy fossils, but with high scientific interest. In our case, we are going to use like an exampke some high palaeoecological value specimens from the Iberian Ranges part of the "Triassic Inchnofossil Collection" in the Geological Museum University of Valencia (MGUV). This is composed of several Muschelkalk (Middle Triassic) "Burrows", Rhizocoraliums, Thalassinoids and possible-quelonid ichnites of the Keuper (Upper Triassic).
Historical Biology, 2017
Abstract An incomplete skull of a marine reptile with an atypical elongation of the postorbital r... more Abstract An incomplete skull of a marine reptile with an atypical elongation of the postorbital region is described. The find comes from the Muschelkalk facies (Cañete Formation) of the Villora section (Iberian Range, Cuenca Province, Spain), characterised by a shallow marine (intertidal) environment and dated as Ladinian in age. The small skull has a rectangular shape, lacking, as preserved, upper temporal openings and a parietal foramen. The upper temporal openings might be secondarily closed. However, the absence of a parietal foramen and squamosals in the preserved part and the incompleteness of the pterygoids make a posteriorly postponed location of the upper temporal openings also conceivable. Teeth are all broken off but alveolar spaces indicate large and massive maxillary dentition. Micro-CT-data revealed a highly vascularised inner structure of the dorsal skull elements, which might indicate special feeding adaptations. Adding the new find to an existing phylogenetic analysis of Triassic marine reptiles reveals eosauropterygian, especially nothosauroid, affinities. However, morphological differences to nothosauroids justify the erection of a new genus and species for this enigmatic marine reptile. Its atypical morphology, without any extinct or modern analogue, fits well with the continuously increasing diversity of Triassic marine reptiles, exhibiting various specialised feeding strategies urn:lsid:zoobank.org:act:6D75AEC7-A5C5-4844-B71A-8215AB099134
Spanish Journal of Palaeontology
El estudio de los Bivalvos del Triásico de Alicante, llamó poderosamente la atención a paleontólo... more El estudio de los Bivalvos del Triásico de Alicante, llamó poderosamente la atención a paleontólogos de principios de siglo. Muchas de las especies nuevas del Triásico español fueron creadas en esta zona del dominio Prebético. La revisión de las colecciones del Triásico depositadas en el "Museu Historie Municipal" de Novelda (Alicante) permite destacar, de nuevo, el interés del estudio de estos registros fósiles del Muschelkalk. Las asociaciones revisadas son muy próximas a las estudiadas en el Ladiniense de la zona Subbética y de la Cordillera Ibérica.
Polymorphism and shell reshaping in Pinna nobilis L., 1758: the reliability of shell dimensions f... more Polymorphism and shell reshaping in Pinna nobilis L., 1758: the reliability of shell dimensions for ontogenetic age and population growth rate estimates
En este trabajo se presenta la primera compilación del registro fósil observado en relación con n... more En este trabajo se presenta la primera compilación del registro fósil observado en relación con notorios grupos de macro y microfósiles encontrados en las facies Muschelkalk del Ladiniense (Triásico Medio), de la Cordillera Bética (SE de España). Su comparación con las asociaciones fósiles conocidas de la Codillera Ibérica (NE de España) proporciona un primer paso para el establecimiento de una bioestratigrafía común. Esto además puede permitir la correlación de las formaciones del Triásico Medio (Ladiniense), en un amplio dominio paleogeográfico que se extiende desde el sur hasta el noreste de la península ibérica. Las asociaciones de bivalvos, conodontos y foraminíferos identificados en la Cordillera Bética (B) y la Ibérica (I), son importantes para obtener datos de comparación entre las sucesiones del Ladiniense, caracterizadas por continuos cambios de facies. Así pues, se han analizado estas asociaciones a través de las zonas bioestratigráficas definidas con los ammonoideos iden...
The Upper Triassic-Lower Jurassic lithostratigraphic units in northeastern Iberian Peninsula incl... more The Upper Triassic-Lower Jurassic lithostratigraphic units in northeastern Iberian Peninsula include a large variety of siliciclastic, carbonate and evaporite facies assemblages. The upper Triassic carbonates are known as the Imon Formation in the Iberian Ranges and the Catalan Coastal Ranges. The bivalve associations (Nuculana cf. borsonii, Neoschizodus reziae, Pseudocorbula alpina, Protocardia cf. rhaetica, Laternula cf. amicii), located in the uppermost part of the Imon Formation, mainly in Alfara section, indicate a Rhaetian age.
Spanish journal of palaeontology, Feb 27, 2022
During the Triassic the Iberian Peninsula was placed at the western part of the Tethys Sea. The M... more During the Triassic the Iberian Peninsula was placed at the western part of the Tethys Sea. The Middle-Late Triassic (Anisian Norian) rocks of the Iberian, Catalonian and External Betic (Prebetic and Subbetic) Ranges, contain three main intervals inter preted as prograding carbonate ramps: lower Muschelkalk (Anisian), upper Muschelkalk (Ladinian) and Imon Dolomites For mation (Norian); some carbonatic levels appear in the Subbetic (Carnian). The fossil record is f r equently scarce and bad preserved. During one century (1853-1954), spanish paleontologicaJ works on the Muschelkalk dealt with several punctual aspects and showed taxonomical confusion. In this paper the results of the last ten years of paleontological research on trias sic bivalves f r om Spain have been updated. At the moment, one Anisian, three Ladinian, two Ladinian-Carnian, one Carnian and one Norian bivalve assemblages have been identified. The record appears in sediments from protected areas of shallow carbonatic ramps. The bivalve species have not biostratigraphical meaning but its assemblages characterize each carbonatic intercalation. The most of the taxa are common in the Tethys realm.
Spanish Journal of Palaeontology, 2021
Se trata de un libro dirigido al público en general, donde se van describiendo los diversos avata... more Se trata de un libro dirigido al público en general, donde se van describiendo los diversos avatares que los autores han ido superando, hasta acceder, estudiar y describir el gran tesoro geológico y paleontológico que, ya se presumía, estaba contenido en los materiales geológicos bajo la montaña ordovícica.
Palaeogeography, Palaeoclimatology, Palaeoecology, 2018
Paleontological Contributions, 2011
BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access t... more BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.
Yacimientos Paleontológicos Excepcionales en la Península Ibérica: XXXIV Jornadas de Paleontología y IV Congreso Ibérico de Paleontología, 2018, ISBN 978-84-9138-066-5, págs. 137-141, 2018
Spanish Journal of Palaeontology
En el Triásico del sector central de la Cordillera Bética se pueden diferenciar, a grandes rasgos... more En el Triásico del sector central de la Cordillera Bética se pueden diferenciar, a grandes rasgos, tres tipos de facies litológicas: carbonatos (facies Muschelkalk), terrígenos (facies Keuper), evaporitas (facies Keuper). El estudio de varios afloramientos en este área ha supuesto un mayor conocimiento de los aspectos paleoecológicos del Trías, y ha permitido la revisión bioestratigráfica de las series. En el tramo carbonatado, el registro fósil está constituido en su mayoría por moluscos y braquiópodos. La asociación de bivalvos encontrada puede atribuirse al Ladiniense medio-superior, por la presencia de Coslatoria goldfussi y Enantiostreon flabellum, formas características de los tramos terminales del Ladiniense en el sector occidental del Dominio Sefardí. En conjunto, el registro es muy escaso y la preservación de los fósiles es, en general, deficiente. La mayor parte de la fauna se encuentra en las capas terminales del Muschelkalk, en niveles de calizas-margosas con intercalaci...
Geotemas ( Madrid ), 2005
The finding of ammonoids and bivalves in the deposits of the Triassic-Jurassic (T-J) transition i... more The finding of ammonoids and bivalves in the deposits of the Triassic-Jurassic (T-J) transition in the Gijon Formation (Asturias) allowed of the biostratigraphy and chronostratigraphy of the Rhaetian and the Tettangian. Among the ammonoids, the record of an Arcestidae (Rhaetian) and several Psiloceras (Hettagian, Planorbis Zone) in the upper part of the Solis Member can be stand out. The domain Rhaetian bivalves are Isocyprima concentrica and Bakevillia praecursor. These species, together with Isocyprina ewaldi, "Pteromorphus" elongatus, Pteromya longportensis, Placunopsis cf. alpina, Modiolus minimus and Paleocardita cf. austriaca, represents a similar assemblages to that found in the Westbury and Lilstok formations (Penarth Group) in the late Rhaetian of southern England. The Hettangian bivalves are represented by the widley distributed species Pteromya tatei, which is associated to Cuneigervillia rhombica, Parallelodon hettangiensis and Eomiodos menkei. This assembalge is known in the Hettangian Planorbis Zone of France and Germany. As a consequence, the T-J- boundary has been located within the upper part of the Solis Member of the Gijon Formation.
The aim of this paper is to present one easy and low-cost expositive techniques, the anaglyph pho... more The aim of this paper is to present one easy and low-cost expositive techniques, the anaglyph photography. This technique can be very useful in a museum of paleontology to make attractive to all kind of public some not very showy fossils, but with high scientific interest. In our case, we are going to use like an exampke some high palaeoecological value specimens from the Iberian Ranges part of the "Triassic Inchnofossil Collection" in the Geological Museum University of Valencia (MGUV). This is composed of several Muschelkalk (Middle Triassic) "Burrows", Rhizocoraliums, Thalassinoids and possible-quelonid ichnites of the Keuper (Upper Triassic).
Historical Biology, 2017
Abstract An incomplete skull of a marine reptile with an atypical elongation of the postorbital r... more Abstract An incomplete skull of a marine reptile with an atypical elongation of the postorbital region is described. The find comes from the Muschelkalk facies (Cañete Formation) of the Villora section (Iberian Range, Cuenca Province, Spain), characterised by a shallow marine (intertidal) environment and dated as Ladinian in age. The small skull has a rectangular shape, lacking, as preserved, upper temporal openings and a parietal foramen. The upper temporal openings might be secondarily closed. However, the absence of a parietal foramen and squamosals in the preserved part and the incompleteness of the pterygoids make a posteriorly postponed location of the upper temporal openings also conceivable. Teeth are all broken off but alveolar spaces indicate large and massive maxillary dentition. Micro-CT-data revealed a highly vascularised inner structure of the dorsal skull elements, which might indicate special feeding adaptations. Adding the new find to an existing phylogenetic analysis of Triassic marine reptiles reveals eosauropterygian, especially nothosauroid, affinities. However, morphological differences to nothosauroids justify the erection of a new genus and species for this enigmatic marine reptile. Its atypical morphology, without any extinct or modern analogue, fits well with the continuously increasing diversity of Triassic marine reptiles, exhibiting various specialised feeding strategies urn:lsid:zoobank.org:act:6D75AEC7-A5C5-4844-B71A-8215AB099134
Spanish Journal of Palaeontology
El estudio de los Bivalvos del Triásico de Alicante, llamó poderosamente la atención a paleontólo... more El estudio de los Bivalvos del Triásico de Alicante, llamó poderosamente la atención a paleontólogos de principios de siglo. Muchas de las especies nuevas del Triásico español fueron creadas en esta zona del dominio Prebético. La revisión de las colecciones del Triásico depositadas en el "Museu Historie Municipal" de Novelda (Alicante) permite destacar, de nuevo, el interés del estudio de estos registros fósiles del Muschelkalk. Las asociaciones revisadas son muy próximas a las estudiadas en el Ladiniense de la zona Subbética y de la Cordillera Ibérica.
Polymorphism and shell reshaping in Pinna nobilis L., 1758: the reliability of shell dimensions f... more Polymorphism and shell reshaping in Pinna nobilis L., 1758: the reliability of shell dimensions for ontogenetic age and population growth rate estimates
En este trabajo se presenta la primera compilación del registro fósil observado en relación con n... more En este trabajo se presenta la primera compilación del registro fósil observado en relación con notorios grupos de macro y microfósiles encontrados en las facies Muschelkalk del Ladiniense (Triásico Medio), de la Cordillera Bética (SE de España). Su comparación con las asociaciones fósiles conocidas de la Codillera Ibérica (NE de España) proporciona un primer paso para el establecimiento de una bioestratigrafía común. Esto además puede permitir la correlación de las formaciones del Triásico Medio (Ladiniense), en un amplio dominio paleogeográfico que se extiende desde el sur hasta el noreste de la península ibérica. Las asociaciones de bivalvos, conodontos y foraminíferos identificados en la Cordillera Bética (B) y la Ibérica (I), son importantes para obtener datos de comparación entre las sucesiones del Ladiniense, caracterizadas por continuos cambios de facies. Así pues, se han analizado estas asociaciones a través de las zonas bioestratigráficas definidas con los ammonoideos iden...
The Upper Triassic-Lower Jurassic lithostratigraphic units in northeastern Iberian Peninsula incl... more The Upper Triassic-Lower Jurassic lithostratigraphic units in northeastern Iberian Peninsula include a large variety of siliciclastic, carbonate and evaporite facies assemblages. The upper Triassic carbonates are known as the Imon Formation in the Iberian Ranges and the Catalan Coastal Ranges. The bivalve associations (Nuculana cf. borsonii, Neoschizodus reziae, Pseudocorbula alpina, Protocardia cf. rhaetica, Laternula cf. amicii), located in the uppermost part of the Imon Formation, mainly in Alfara section, indicate a Rhaetian age.
Spanish journal of palaeontology, Feb 27, 2022
During the Triassic the Iberian Peninsula was placed at the western part of the Tethys Sea. The M... more During the Triassic the Iberian Peninsula was placed at the western part of the Tethys Sea. The Middle-Late Triassic (Anisian Norian) rocks of the Iberian, Catalonian and External Betic (Prebetic and Subbetic) Ranges, contain three main intervals inter preted as prograding carbonate ramps: lower Muschelkalk (Anisian), upper Muschelkalk (Ladinian) and Imon Dolomites For mation (Norian); some carbonatic levels appear in the Subbetic (Carnian). The fossil record is f r equently scarce and bad preserved. During one century (1853-1954), spanish paleontologicaJ works on the Muschelkalk dealt with several punctual aspects and showed taxonomical confusion. In this paper the results of the last ten years of paleontological research on trias sic bivalves f r om Spain have been updated. At the moment, one Anisian, three Ladinian, two Ladinian-Carnian, one Carnian and one Norian bivalve assemblages have been identified. The record appears in sediments from protected areas of shallow carbonatic ramps. The bivalve species have not biostratigraphical meaning but its assemblages characterize each carbonatic intercalation. The most of the taxa are common in the Tethys realm.
Spanish Journal of Palaeontology, 2021
Se trata de un libro dirigido al público en general, donde se van describiendo los diversos avata... more Se trata de un libro dirigido al público en general, donde se van describiendo los diversos avatares que los autores han ido superando, hasta acceder, estudiar y describir el gran tesoro geológico y paleontológico que, ya se presumía, estaba contenido en los materiales geológicos bajo la montaña ordovícica.
Palaeogeography, Palaeoclimatology, Palaeoecology, 2018
Paleontological Contributions, 2011
BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access t... more BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.