: Middle Ordovician trilobites found in 11 fossil localities from the areas of Alpartir, Aladrén, Luesma and Fombuena (Zaragoza province), and south of Calamocha (Teruel province) are studied. Most records come from the Alpartir Member of the Castillejo Formation, which is dated as Dobrotivian in age (late Darriwilian according to the global scale), with the only exception of two localities that are slightly older, from late Oretanian
{"title":"Middle Ordovician trilobites from the Castillejo Formation, Eastern Iberian Range (NE Spain): taxonomic reappraisal, biostratigraphy, and correlation","authors":"S. Romero, J. C. Gutiérrez-Marco","doi":"10.7203/sjp.27098","DOIUrl":"https://doi.org/10.7203/sjp.27098","url":null,"abstract":": Middle Ordovician trilobites found in 11 fossil localities from the areas of Alpartir, Aladrén, Luesma and Fombuena (Zaragoza province), and south of Calamocha (Teruel province) are studied. Most records come from the Alpartir Member of the Castillejo Formation, which is dated as Dobrotivian in age (late Darriwilian according to the global scale), with the only exception of two localities that are slightly older, from late Oretanian","PeriodicalId":37953,"journal":{"name":"Spanish Journal of Paleontology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45382388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Editorial: Tribute to Tiiu Märss and Philippe Janvier (16th International Symposium on Early and Lower Vertebrates)","authors":"C. Martínez-Pérez, H. Ferrón, H. Botella","doi":"10.7203/sjp.26864","DOIUrl":"https://doi.org/10.7203/sjp.26864","url":null,"abstract":"","PeriodicalId":37953,"journal":{"name":"Spanish Journal of Paleontology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71319085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Our honoured colleagues, Drs Tiiu Märss and Philippe Janvier, commemorated at the 16th ISELV, Valencia, Spain: personal memories","authors":"Susan Turner","doi":"10.7203/sjp.26505","DOIUrl":"https://doi.org/10.7203/sjp.26505","url":null,"abstract":"","PeriodicalId":37953,"journal":{"name":"Spanish Journal of Paleontology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42663622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Coal mining at the Puertollano Carboniferous basin has led to the discovery and study of numerous fossiliferous layers, rich in chondrichthyan, actinopterigyan and tetrapod remains. The end of the mining operations and closure of the mines could also represent complete cease of palaeontological prospections and field work at the Puertollano basin. Fortunately, three quarries, called María Isabel, La Extranjera and La Tejera, have been declared a Natural Monument. Consequently, they are protected by law and reserved for geological and palaeontological scientific research. In this paper, we describe the geology of the Natural Monument and its vertebrate fossil record. The outcrops of the three quarries show the most superficial part of the stratigraphic series so that they inform about the latest stages of the sedimentological and palaeogeographical evolution of the Puertollano basin. The actual coal basin appears to represent a remnant of a much larger basin which opened eastward to the Palaeo-Tethys. The diverse chondrichthyan assemblage (acanthodians, xenacanths and euselachians) and euryhaline actinopterygians, and the presence of tidal rhythmites, indicate an estuarine-deltaic environment. Future sedimentological and palaeontological studies at the Natural Monument will inform about the degree of marine influence in the basin and the changes of the vertebrate communities. Resumen: La minería del carbón en la cuenca carbonífera de Puertollano, ha permitido el descubrimiento y estudio de numerosos niveles fosilíferos ricos en restos de condrictios, actinopterigios y tetrápodos. El final de la explotación del carbón y el cierre o restauración de las minas, pudo suponer la eliminación de toda posibilidad de futuras prospecciones paleontológicas. Afortunadamente, tres minas a cielo abierto, María Isabel, La Extranjera y La Tejera, han sido declaradas Monumento Natural y, por lo tanto, son áreas protegidas, reservadas para la investigación geológica y paleontológica. En este trabajo describimos la geología de las tres localidades del Monumento y estudiamos el contenido en vertebrados. En las tres minas afloran los niveles más superficiales de la cuenca, dando información de los momentos finales de sedimentación y evolución paleogeográfica de la cuenca de Puertollano. La cuenca carbonífera actual sería un resto de una cuenca mucho mayor conectada hacia el este con el Paleo-Tetis. La abundancia de condrictios (acantódidos, xenacántidos y euseláceos) y actinopterigios eurihalinos, y la existencia de ritmitas mareales, indica un ambiente de tipo estuarino-deltaico. Futuros estudios sedimentológicos y paleontológicos en el Monumento Natural informarán sobre el grado de influencia marina en la cuenca y los cambios de las comunidades de vertebrados. Received: 23 April 2023 Accepted: 6 June 2023 Published: 13 June 2023 Corresponding author:
{"title":"\"Carbonífero de Puertollano\" Natural Monument (Puertollano basin, Spain): a window for the knowledge of Early Vertebrates","authors":"R. Soler‐Gijón, A. Díez Ruiz","doi":"10.7203/sjp.26788","DOIUrl":"https://doi.org/10.7203/sjp.26788","url":null,"abstract":"Coal mining at the Puertollano Carboniferous basin has led to the discovery and study of numerous fossiliferous layers, rich in chondrichthyan, actinopterigyan and tetrapod remains. The end of the mining operations and closure of the mines could also represent complete cease of palaeontological prospections and field work at the Puertollano basin. Fortunately, three quarries, called María Isabel, La Extranjera and La Tejera, have been declared a Natural Monument. Consequently, they are protected by law and reserved for geological and palaeontological scientific research. In this paper, we describe the geology of the Natural Monument and its vertebrate fossil record. The outcrops of the three quarries show the most superficial part of the stratigraphic series so that they inform about the latest stages of the sedimentological and palaeogeographical evolution of the Puertollano basin. The actual coal basin appears to represent a remnant of a much larger basin which opened eastward to the Palaeo-Tethys. The diverse chondrichthyan assemblage (acanthodians, xenacanths and euselachians) and euryhaline actinopterygians, and the presence of tidal rhythmites, indicate an estuarine-deltaic environment. Future sedimentological and palaeontological studies at the Natural Monument will inform about the degree of marine influence in the basin and the changes of the vertebrate communities. Resumen: La minería del carbón en la cuenca carbonífera de Puertollano, ha permitido el descubrimiento y estudio de numerosos niveles fosilíferos ricos en restos de condrictios, actinopterigios y tetrápodos. El final de la explotación del carbón y el cierre o restauración de las minas, pudo suponer la eliminación de toda posibilidad de futuras prospecciones paleontológicas. Afortunadamente, tres minas a cielo abierto, María Isabel, La Extranjera y La Tejera, han sido declaradas Monumento Natural y, por lo tanto, son áreas protegidas, reservadas para la investigación geológica y paleontológica. En este trabajo describimos la geología de las tres localidades del Monumento y estudiamos el contenido en vertebrados. En las tres minas afloran los niveles más superficiales de la cuenca, dando información de los momentos finales de sedimentación y evolución paleogeográfica de la cuenca de Puertollano. La cuenca carbonífera actual sería un resto de una cuenca mucho mayor conectada hacia el este con el Paleo-Tetis. La abundancia de condrictios (acantódidos, xenacántidos y euseláceos) y actinopterigios eurihalinos, y la existencia de ritmitas mareales, indica un ambiente de tipo estuarino-deltaico. Futuros estudios sedimentológicos y paleontológicos en el Monumento Natural informarán sobre el grado de influencia marina en la cuenca y los cambios de las comunidades de vertebrados. Received: 23 April 2023 Accepted: 6 June 2023 Published: 13 June 2023 Corresponding author:","PeriodicalId":37953,"journal":{"name":"Spanish Journal of Paleontology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43341345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vincent Dupret, H. Byrne, T. Challands, Ø. Hammer, K. Higgs, J. Long, G. Niedźwiedzki, Martin Qvarnström, I. Stössel, P. Ahlberg
{"title":"Non-tetrapod sarcopterygians from the Valentia Slate Formation (Givetian, Devonian) of the Iveragh Peninsula, south-western Ireland: systematic reappraisal and palaeobiogeographic implications","authors":"Vincent Dupret, H. Byrne, T. Challands, Ø. Hammer, K. Higgs, J. Long, G. Niedźwiedzki, Martin Qvarnström, I. Stössel, P. Ahlberg","doi":"10.7203/sjp.26527","DOIUrl":"https://doi.org/10.7203/sjp.26527","url":null,"abstract":"","PeriodicalId":37953,"journal":{"name":"Spanish Journal of Paleontology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42624955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Palaeoecology and palaeobiogeographic relationships of Lower Devonian bryozoans from the Guadámez and Peñón Cortado Sections of Sierra Morena (SW Spain)","authors":"A. Ernst, S. Rodríguez","doi":"10.7203/sjp.26580","DOIUrl":"https://doi.org/10.7203/sjp.26580","url":null,"abstract":"","PeriodicalId":37953,"journal":{"name":"Spanish Journal of Paleontology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47477493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Johanson Johanson, M. Newman, Gizéh Rangel-de Lázaro, Moya M. Smith, Roger Jones
{"title":"A new dipnoan species Janvierpaucidentes tuulingi gen. et sp. nov. from the Pragian (Early Devonian) of Mimerdalen, Svalbard (Norway), with an unusual dentition","authors":"Johanson Johanson, M. Newman, Gizéh Rangel-de Lázaro, Moya M. Smith, Roger Jones","doi":"10.7203/sjp.26647","DOIUrl":"https://doi.org/10.7203/sjp.26647","url":null,"abstract":"","PeriodicalId":37953,"journal":{"name":"Spanish Journal of Paleontology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44673631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Dermal skeleton of the stem osteichthyan Ligulalepis from the Lower Devonian of New South Wales (Australia)","authors":"C. Burrow, Gavin Young, Jing Lu","doi":"10.7203/sjp.26575","DOIUrl":"https://doi.org/10.7203/sjp.26575","url":null,"abstract":"","PeriodicalId":37953,"journal":{"name":"Spanish Journal of Paleontology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46608025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sergio M. Nebreda, L. Chiappe, Guillermo Navalón, A. Chinsamy, J. Sanz, Á. Buscalioni, Jesús Marugán-Lobón
: The Lower Cretaceous fossil site of Las Hoyas (Cuenca, Spain) has yielded the richest Cretaceous avifauna of the European continent. We describe a new fossil (MUPA-LH-33333) of an enantiornithine bird from this locality. This specimen consists of a partially articulated skeleton preserving portions of the vertebral column, both girdles and limbs, ribs and sternum; it also preserves patches of soft tissues including remigial feathers and integumentary structures belonging to the postpatagium. MUPA-LH-33333 shares dimensions and some anatomical features with the holotype of Concornis lacustris , a species previously described from Las Hoyas. However, the new specimen shows differences especially in the coracoid and the sternum, suggesting the presence of a different morpho-type closely related to C. lacustris . Nevertheless, the poor preservation prevents asserting that it represents a new species. Histological evidence from its long bones indicates that is subadult or adult and that early fast rates followed by slower and protracted cyclical phases took place during its growth, a previously unnoticed pattern in Lower Cretaceous enantiornithines. This new finding supports the hypothesis that enantiornithines regularly inhabited the Las Hoyas wetland, making this site a hotspot for enhancing our understanding of the evolution and life history of these Cretaceous birds.
{"title":"A new enantiornithine specimen from the Lower Cretaceous of Las Hoyas: avifaunal diversity and life-history of a wetland Mesozoic bird","authors":"Sergio M. Nebreda, L. Chiappe, Guillermo Navalón, A. Chinsamy, J. Sanz, Á. Buscalioni, Jesús Marugán-Lobón","doi":"10.7203/sjp.26504","DOIUrl":"https://doi.org/10.7203/sjp.26504","url":null,"abstract":": The Lower Cretaceous fossil site of Las Hoyas (Cuenca, Spain) has yielded the richest Cretaceous avifauna of the European continent. We describe a new fossil (MUPA-LH-33333) of an enantiornithine bird from this locality. This specimen consists of a partially articulated skeleton preserving portions of the vertebral column, both girdles and limbs, ribs and sternum; it also preserves patches of soft tissues including remigial feathers and integumentary structures belonging to the postpatagium. MUPA-LH-33333 shares dimensions and some anatomical features with the holotype of Concornis lacustris , a species previously described from Las Hoyas. However, the new specimen shows differences especially in the coracoid and the sternum, suggesting the presence of a different morpho-type closely related to C. lacustris . Nevertheless, the poor preservation prevents asserting that it represents a new species. Histological evidence from its long bones indicates that is subadult or adult and that early fast rates followed by slower and protracted cyclical phases took place during its growth, a previously unnoticed pattern in Lower Cretaceous enantiornithines. This new finding supports the hypothesis that enantiornithines regularly inhabited the Las Hoyas wetland, making this site a hotspot for enhancing our understanding of the evolution and life history of these Cretaceous birds.","PeriodicalId":37953,"journal":{"name":"Spanish Journal of Paleontology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43124767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
: The early chondrichthyan order Omalodontiformes from the late Early Devonian through to the Late Devonian is characterised by specific teeth. Unlike in most Devonian sharks, their bases are directed labially or are reduced and devoid of labial or lingual extensions. In this paper the complex history of investigation on the dermal skeleton of omalo-dontiforms is presented and the validity of the established taxa is revised. The dentition of an Emsian representative of this group , known from a single articulated specimen (NMBG 10127) and several isolated fin spines from Canada and previously, probably incorrectly, attributed to Doliodus , is distinctly heterodont. The nature of this heterodonty suggests that the two omalodontiform tooth-based genera described originally from the Middle–Upper Devonian Aztec Siltstone (Antarctica), viz . Portalodus and Anareodus , are in fact conge-neric as their teeth represent different parts of the same jaw. Because the teeth of the Canadian specimen differ in important aspects from those of typical Doliodus and are generally similar to those of Portalodus , it probably should be placed in a new genus. Also, the validity of the distinction between Portalodus bradshawae and P. mannoliniae is considered questionable.
{"title":"The dentition of Omalodontiformes, the order of unusual Devonian stem-chondrichthyans","authors":"M. Ginter","doi":"10.7203/sjp.26564","DOIUrl":"https://doi.org/10.7203/sjp.26564","url":null,"abstract":": The early chondrichthyan order Omalodontiformes from the late Early Devonian through to the Late Devonian is characterised by specific teeth. Unlike in most Devonian sharks, their bases are directed labially or are reduced and devoid of labial or lingual extensions. In this paper the complex history of investigation on the dermal skeleton of omalo-dontiforms is presented and the validity of the established taxa is revised. The dentition of an Emsian representative of this group , known from a single articulated specimen (NMBG 10127) and several isolated fin spines from Canada and previously, probably incorrectly, attributed to Doliodus , is distinctly heterodont. The nature of this heterodonty suggests that the two omalodontiform tooth-based genera described originally from the Middle–Upper Devonian Aztec Siltstone (Antarctica), viz . Portalodus and Anareodus , are in fact conge-neric as their teeth represent different parts of the same jaw. Because the teeth of the Canadian specimen differ in important aspects from those of typical Doliodus and are generally similar to those of Portalodus , it probably should be placed in a new genus. Also, the validity of the distinction between Portalodus bradshawae and P. mannoliniae is considered questionable.","PeriodicalId":37953,"journal":{"name":"Spanish Journal of Paleontology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48306961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}