Redescription of the cranial skeleton of the Early Devonian (Emsian) sarcopterygian Durialepis edentatus Otto (Dipnomorpha, Porolepiformes)
Porolepiforms represent a clade of Devonian stem lungfishes, divided into the cosmine- bearing and probably paraphyletic - Porolepidae- (e.g. Porolepis, Heimenia) and the cosmine- free and stratigraphically younger Holoptychiidae (e.g. Holoptychius, Glyptolepis, Laccognathus). Data on the dermoskele...
| Published in: | Papers in Palaeontology |
|---|---|
| Main Authors: | , , |
| Format: | Article in Journal/Newspaper |
| Language: | unknown |
| Published: |
Academy of Sciences of Estonia
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/2027.42/167437 https://doi.org/10.1002/spp2.1315 |
| _version_ | 1821794862100381696 |
|---|---|
| author | Mondéjar‐fernández, Jorge Friedman, Matt Giles, Sam |
| author_facet | Mondéjar‐fernández, Jorge Friedman, Matt Giles, Sam |
| author_sort | Mondéjar‐fernández, Jorge |
| collection | University of Michigan: Deep Blue |
| container_issue | 2 |
| container_start_page | 789 |
| container_title | Papers in Palaeontology |
| container_volume | 7 |
| description | Porolepiforms represent a clade of Devonian stem lungfishes, divided into the cosmine- bearing and probably paraphyletic - Porolepidae- (e.g. Porolepis, Heimenia) and the cosmine- free and stratigraphically younger Holoptychiidae (e.g. Holoptychius, Glyptolepis, Laccognathus). Data on the dermoskeleton are available for both groups, but are more limited for - porolepids- . Here we present new information on the - porolepid- Durialepis edentatus from the Emsian (Early Devonian) of Germany based on micro- computed tomography. The material comprises an articulated skull of a single three- dimensionally preserved individual. The arrangement of the cheekbones of Durialepis edentatus recalls that of Porolepis brevis, with the occurrence of two subsidiary squamosals. However, the parieto- ethmoidal and postparietal shields are roughly equal in size, a condition similar to that of Glyptolepis groenlandica and intermediate between Porolepis brevis and holoptychiids. A large parasymphysial tooth plate displays five tooth rows with three large tusks in the median row, another intermediate arrangement between the primitive condition of Porolepis sp. (eight rows) and holoptychiids (five or fewer rows). Remarkably among porolepiforms, this dental plate is perfectly symmetrical. Despite the occurrence of cosmine and rhombic scales, the combination of traits displayed in Durialepis deviates from Porolepis in several ways, reflecting features shared with holoptychiids to the exclusion of other - porolepids- . Durialepis edentatus is thus a key addition to our knowledge of - porolepid- anatomy. Because Durialepis edentatus preserves much of the cranial and postcranial skeleton in a single individual, it represents a suitable early dipnomorph representative for inclusion in phylogenetic analyses on sarcopterygians and early osteichthyans. Peer Reviewed http://deepblue.lib.umich.edu/bitstream/2027.42/167437/1/spp21315_am.pdf http://deepblue.lib.umich.edu/bitstream/2027.42/167437/2/spp21315.pdf |
| format | Article in Journal/Newspaper |
| genre | Arctic |
| genre_facet | Arctic |
| id | ftumdeepblue:oai:deepblue.lib.umich.edu:2027.42/167437 |
| institution | Open Polar |
| language | unknown |
| op_collection_id | ftumdeepblue |
| op_container_end_page | 806 |
| op_doi | https://doi.org/10.1002/spp2.131510.5061/dryad.rfj6q576v |
| op_relation | Mondéjar‐fernández, Jorge Friedman, Matt; Giles, Sam (2021). "Redescription of the cranial skeleton of the Early Devonian (Emsian) sarcopterygian Durialepis edentatus Otto (Dipnomorpha, Porolepiformes)." Papers in Palaeontology (2): 789-806. 2056-2802 https://hdl.handle.net/2027.42/167437 doi:10.1002/spp2.1315 Papers in Palaeontology Johanson, Z., Ahlberg, P. E. and Ritchie, A. 2013. First record of Porolepis (Sarcopterygii; Porolepiformes) from eastern Gondwana. Canadian Journal of Earth Sciences, 50, 249 - 253. Janvier, P. 1996. Early vertebrates. Oxford University Press, 393 pp. Jarvik, E. 1942. On the structure of the snout of crossopterygians and lower gnathostomes in general. Zoologiska Bidrag fran Uppsala, 21, 235 - 675. Jarvik, E. 1972. Middle and Upper Devonian Porolepiformes from East Greenland with special reference to Glyptolepis groenlandica n. sp., and a discussion on the structure of the head in the Porolepiformes. Meddelelser om Grønland, 187 ( 2 ), 1 - 307. Jarvik, E. 1980. Basic structure and evolution of vertebrates. Vol. 1. Academic Press, 575 pp. Jessen, H. L. 1980. Lower Devonian Porolepiformes from the Canadian Arctic with special reference to Powichthys thorsteinssoni Jessen. Palaeontographica Abteilung A, 167, 180 - 214. Jessen, H. L. 1989. Ein rhipidistier Fischrest aus den Klerf- Schichten (oberes Unter- Devon) der Eifel (Rheinisches Schiefergebirge). Palaeontographica, Abteilung A, 206, 17 - 24. Kade, G. 1858. Ueber die Devonischen Fishreste eines Diluvialblockes. Programm der Königlichen Realschule zu Meseritz, 24  pp. Kulczycki, J. 1960. Porolepis (Crossopterygii) from the Lower Devonian of the Holy Cross Mountains. Acta Palaeontologica Polonica, 5, 65 - 104. Lebedev, O. and Luksevics, E. 2018. New materials on Ventalepis ketleriensis Schultze, 1980 extend the zoogeographic area of a Late Devonian vertebrate assemblage. Acta Geologica Polonica, 68, 437 - 454. Lu, J., Giles, S., Friedman, M., den Blaauwen, J. L. and Zhu, M. 2016. The oldest actinopterygian highlights the cryptic early history of the hyperdiverse ray- finned fishes. Current Biology, 26, 1602 - 1608. Maisey, J. G. 1986. Heads and tails: a chordate phylogeny. Cladistics, 2, 201 - 256. Miller, R. F. and Brazeau, M. D. 2007. A Late Devonian Porolepiform fish ( Holoptychius ) and the age of the Kennebecasis Formation, southern New Brunswick, Canada. Atlantic Geology, 43, 187 - 196. Mondéjar- Fernández, J. 2018. On cosmine: its origins, biology and implications for sarcopterygian interrelationships. Cybium, 42, 41 - 65. Mondéjar- Fernández, J. and Clément, G. 2012. Squamation and scale microstructure evolution in the Porolepiformes (Sarcopterygii, Dipnomorpha) based on Heimenia ensis from the Devonian of Spitsbergen. Journal of Vertebrate Paleontology, 32, 267 - 284. Mondéjar- Fernández, J. and Janvier, P. 2014. Further evidence for the presence of holoptychiid porolepiforms (Sarcopterygii, Dipnomorpha) from the Frasnian of Colombia. Comptes Rendus Palévol, 13, 587 - 597. Mondéjar- Fernández, J., Friedman, M. and Giles, S. 2020. Data from: Redescription of the cranial skeleton of the Early Devonian (Emsian) sarcopterygian Durialepis edentatus Otto (Dipnomorpha, Porolepiformes). Dryad Digital Repository. https://doi.org/10.5061/dryad.rfj6q576v Obruchev, D. V. 1933. Description of four new species from the Devonian of Leningrad Province. Material of the Central Scientific Geological & Prospecting Institute. Palaeontology & Stratigraphy Magazine, 1, 12 - 14. Schultze, H.- P. and Arsenault, M. 1987. Quebecius quebecensis (Whiteaves), a porolepiform crossopterygian (Pisces) from the Late Devonian of Québec, Canada. Canadian Journal of Earth Sciences, 24, 2351 - 2361. Thomson, K. S. 1966. Glyptolepis from the Middle Devonian of Scotland. Postilia, 99, 1 - 10. Vorobyeva, E. I. 1980. Observations on two rhipidistian fishes from the Upper Devonian of Lode, Latvia. Zoological Journal of the Linnean Society, 70, 191 - 201. Vorobyeva, E. I. 1987. Porolepid crossopterygian from the Middle Devonian of Estonia. Paleontologicheskii Zhurnal, 1987, 76 - 85. [in Russian] Vorobyeva, E. I. 2006. A new species of Laccognathus (Porolepiform Crossopterygii) from the Devonian of Latvia. Paleontological Journal, 40, 312 - 322. Zhu, M., Zhao, W., Jia, L., Lu, J., Qiao, T. and Qu, Q. 2009. The oldest articulated osteichthyan reveals mosaic gnathostome characters. Nature, 458, 469 - 474. à rvig, T. 1957. Remarks on the vertebrate fauna of the Lower Upper Devonian of Escuminac Bay, P. Q., Canada, with special reference to the Porolepiform Crossopterygians. Arkiv för Zoologi, 2, 481 - 490. à rvig, T. 1969. Vertebrates from the Wood Bay Group and the position of the Emsian- Eifelian boundary in the Devonian of Vestspitsbergen. Lethaia, 2, 273 - 328. Otto, M. 2007. Durialepis edentatus n. gen., n. sp., ein neuer Rhipidistier (Osteichthyes, Sarcopterygii) aus dem Unter- Devon des Rheinischen Schiefergebirges. Geologica et Palaeontologica, 41, 3 - 25. Panchen, A. L. and Smithson, T. R. 1987. Character diagnosis, fossils and the origin of tetrapods. Biological Reviews, 62, 341 - 438. Romer, A. S. 1955. Herpetichthyes, Amphibioidei, Choanichthyes, or Sarcopterygii? Nature, 176, 126. Schultze, H.- P. 1969. Die Faltenzähne der Rhipidistiiden Crossopterygier, der Tetrapoden und der Actinopterygier- gattung Lepisosteus. Palaeontographica Italica, 65, 63 - 136. Schultze, H.- P. 1980. Crossopterygier- Schuppen aus dem obersten Oberdevon Lettlands (Osteichthyes, Pisces). Neues Jahrbuch für Geologie und Paläontologie, Monatshefte, 4, 215 - 228. Schultze, H.- P. 2000. A porolepiform rhipidistian from the Lower Devonian of the Canadian Arctic. Fossil Record, 3, 99 - 109. Ahlberg, P. E. 1989. Paired fin skeletons and relationships of the fossil group Porolepiformes (Osteichthyes: Sarcopterygii). Zoological Journal of the Linnean Society, 96, 119 - 166. Ahlberg, P. E. 1991. A re- examination of sarcopterygian interrelationships, with special reference to the Porolepiformes. Zoological Journal of the Linnean Society, 103, 241 - 287. Ahlberg, P. E. 1992a. A new holoptychiid porolepiform fish from the Upper Frasnian of Elgin, Scotland. Palaeontology, 35, 813 - 828. Ahlberg, P. E. 1992b. The palaeoecology and evolutionary history of the porolepiform sarcopterygians. 71 - 90. In Mark- Kurik, E. (ed.) Fossil fishes as living animals. Academy of Sciences of Estonia, Tallinn. Andrews, S. M. and Westoll, T. S. 1970. The postcranial skeleton of rhipidistian fishes excluding Eusthenopteron. Transactions of the Royal Society of Edinburgh, 68, 391 - 489. Ball, H. W., Dineley, D. L. and White, E. I. 1961. The Old Red Sandstone of Brown Clee Hill and the adjacent area. Bulletin of the British Museum (Natural History) (Geology), 5, 175 - 310. Berg, L. S. 1937. A classification of fish- like vertebrates. Bulletin de l’Académie des Sciences, de l’URSS, Classe des Sciences mathématiques et naturelles, 4, 1277 - 1280. Blieck, A. and Elliott, D. K. 2017. Pteraspidomorphs (Vertebrata), the Old Red Sandstone, and the special case of the Brecon Beacons National Park, Wales, UK. Proceedings of the Geologists- Association, 128, 438 - 446. Clément, G. 2001a. Evidence for lack of choanae in the Porolepiformes. Journal of Vertebrate Paleontology, 21, 795 - 802. Clément, G. 2001b. Etudes anatomiques des genres Porolepis, Woodward 1891 et Heimenia à rvig, 1969 (- Porolepididae- , Sarcopterygii) et du genre Powichthys Jessen, 1975 (Powichthyidae, Sarcopterygii) du Dévonien Inférieur et Moyen du Spitzberg: phylogénie des Dipnomorpha. PhD thesis, Muséum National d’Histoire Naturelle de Paris, Paris, 297  pp. Clément, G. 2004. Nouvelles données anatomiques et morphologie générale des - Porolepididae- (Dipnomorpha, Sarcopterygii). Revue de Paléobiologie, 9, 193 - 211. Clément, G. and Ahlberg, P. E. 2010. The endocranial anatomy of the early sarcopterygian Powichthys from Spitsbergen, based on CT scanning. 363 - 377. In Elliot, D. K., Maisey, J. G., Yu, X. and Miao, D. (eds). Morphology, phylogeny and paleobiogeography of fossil fishes. Friedrich Pfeil, Munich. |
| op_rights | IndexNoFollow |
| publishDate | 2021 |
| publisher | Academy of Sciences of Estonia |
| record_format | openpolar |
| spelling | ftumdeepblue:oai:deepblue.lib.umich.edu:2027.42/167437 2025-01-16T19:57:46+00:00 Redescription of the cranial skeleton of the Early Devonian (Emsian) sarcopterygian Durialepis edentatus Otto (Dipnomorpha, Porolepiformes) Mondéjar‐fernández, Jorge Friedman, Matt Giles, Sam 2021-05 application/pdf https://hdl.handle.net/2027.42/167437 https://doi.org/10.1002/spp2.1315 unknown Academy of Sciences of Estonia Wiley Periodicals, Inc. Mondéjar‐fernández, Jorge Friedman, Matt; Giles, Sam (2021). "Redescription of the cranial skeleton of the Early Devonian (Emsian) sarcopterygian Durialepis edentatus Otto (Dipnomorpha, Porolepiformes)." Papers in Palaeontology (2): 789-806. 2056-2802 https://hdl.handle.net/2027.42/167437 doi:10.1002/spp2.1315 Papers in Palaeontology Johanson, Z., Ahlberg, P. E. and Ritchie, A. 2013. First record of Porolepis (Sarcopterygii; Porolepiformes) from eastern Gondwana. Canadian Journal of Earth Sciences, 50, 249 - 253. Janvier, P. 1996. Early vertebrates. Oxford University Press, 393 pp. Jarvik, E. 1942. On the structure of the snout of crossopterygians and lower gnathostomes in general. Zoologiska Bidrag fran Uppsala, 21, 235 - 675. Jarvik, E. 1972. Middle and Upper Devonian Porolepiformes from East Greenland with special reference to Glyptolepis groenlandica n. sp., and a discussion on the structure of the head in the Porolepiformes. Meddelelser om Grønland, 187 ( 2 ), 1 - 307. Jarvik, E. 1980. Basic structure and evolution of vertebrates. Vol. 1. Academic Press, 575 pp. Jessen, H. L. 1980. Lower Devonian Porolepiformes from the Canadian Arctic with special reference to Powichthys thorsteinssoni Jessen. Palaeontographica Abteilung A, 167, 180 - 214. Jessen, H. L. 1989. Ein rhipidistier Fischrest aus den Klerf- Schichten (oberes Unter- Devon) der Eifel (Rheinisches Schiefergebirge). Palaeontographica, Abteilung A, 206, 17 - 24. Kade, G. 1858. Ueber die Devonischen Fishreste eines Diluvialblockes. Programm der Königlichen Realschule zu Meseritz, 24  pp. Kulczycki, J. 1960. Porolepis (Crossopterygii) from the Lower Devonian of the Holy Cross Mountains. Acta Palaeontologica Polonica, 5, 65 - 104. Lebedev, O. and Luksevics, E. 2018. New materials on Ventalepis ketleriensis Schultze, 1980 extend the zoogeographic area of a Late Devonian vertebrate assemblage. Acta Geologica Polonica, 68, 437 - 454. Lu, J., Giles, S., Friedman, M., den Blaauwen, J. L. and Zhu, M. 2016. The oldest actinopterygian highlights the cryptic early history of the hyperdiverse ray- finned fishes. Current Biology, 26, 1602 - 1608. Maisey, J. G. 1986. Heads and tails: a chordate phylogeny. Cladistics, 2, 201 - 256. Miller, R. F. and Brazeau, M. D. 2007. A Late Devonian Porolepiform fish ( Holoptychius ) and the age of the Kennebecasis Formation, southern New Brunswick, Canada. Atlantic Geology, 43, 187 - 196. Mondéjar- Fernández, J. 2018. On cosmine: its origins, biology and implications for sarcopterygian interrelationships. Cybium, 42, 41 - 65. Mondéjar- Fernández, J. and Clément, G. 2012. Squamation and scale microstructure evolution in the Porolepiformes (Sarcopterygii, Dipnomorpha) based on Heimenia ensis from the Devonian of Spitsbergen. Journal of Vertebrate Paleontology, 32, 267 - 284. Mondéjar- Fernández, J. and Janvier, P. 2014. Further evidence for the presence of holoptychiid porolepiforms (Sarcopterygii, Dipnomorpha) from the Frasnian of Colombia. Comptes Rendus Palévol, 13, 587 - 597. Mondéjar- Fernández, J., Friedman, M. and Giles, S. 2020. Data from: Redescription of the cranial skeleton of the Early Devonian (Emsian) sarcopterygian Durialepis edentatus Otto (Dipnomorpha, Porolepiformes). Dryad Digital Repository. https://doi.org/10.5061/dryad.rfj6q576v Obruchev, D. V. 1933. Description of four new species from the Devonian of Leningrad Province. Material of the Central Scientific Geological & Prospecting Institute. Palaeontology & Stratigraphy Magazine, 1, 12 - 14. Schultze, H.- P. and Arsenault, M. 1987. Quebecius quebecensis (Whiteaves), a porolepiform crossopterygian (Pisces) from the Late Devonian of Québec, Canada. Canadian Journal of Earth Sciences, 24, 2351 - 2361. Thomson, K. S. 1966. Glyptolepis from the Middle Devonian of Scotland. Postilia, 99, 1 - 10. Vorobyeva, E. I. 1980. Observations on two rhipidistian fishes from the Upper Devonian of Lode, Latvia. Zoological Journal of the Linnean Society, 70, 191 - 201. Vorobyeva, E. I. 1987. Porolepid crossopterygian from the Middle Devonian of Estonia. Paleontologicheskii Zhurnal, 1987, 76 - 85. [in Russian] Vorobyeva, E. I. 2006. A new species of Laccognathus (Porolepiform Crossopterygii) from the Devonian of Latvia. Paleontological Journal, 40, 312 - 322. Zhu, M., Zhao, W., Jia, L., Lu, J., Qiao, T. and Qu, Q. 2009. The oldest articulated osteichthyan reveals mosaic gnathostome characters. Nature, 458, 469 - 474. à rvig, T. 1957. Remarks on the vertebrate fauna of the Lower Upper Devonian of Escuminac Bay, P. Q., Canada, with special reference to the Porolepiform Crossopterygians. Arkiv för Zoologi, 2, 481 - 490. à rvig, T. 1969. Vertebrates from the Wood Bay Group and the position of the Emsian- Eifelian boundary in the Devonian of Vestspitsbergen. Lethaia, 2, 273 - 328. Otto, M. 2007. Durialepis edentatus n. gen., n. sp., ein neuer Rhipidistier (Osteichthyes, Sarcopterygii) aus dem Unter- Devon des Rheinischen Schiefergebirges. Geologica et Palaeontologica, 41, 3 - 25. Panchen, A. L. and Smithson, T. R. 1987. Character diagnosis, fossils and the origin of tetrapods. Biological Reviews, 62, 341 - 438. Romer, A. S. 1955. Herpetichthyes, Amphibioidei, Choanichthyes, or Sarcopterygii? Nature, 176, 126. Schultze, H.- P. 1969. Die Faltenzähne der Rhipidistiiden Crossopterygier, der Tetrapoden und der Actinopterygier- gattung Lepisosteus. Palaeontographica Italica, 65, 63 - 136. Schultze, H.- P. 1980. Crossopterygier- Schuppen aus dem obersten Oberdevon Lettlands (Osteichthyes, Pisces). Neues Jahrbuch für Geologie und Paläontologie, Monatshefte, 4, 215 - 228. Schultze, H.- P. 2000. A porolepiform rhipidistian from the Lower Devonian of the Canadian Arctic. Fossil Record, 3, 99 - 109. Ahlberg, P. E. 1989. Paired fin skeletons and relationships of the fossil group Porolepiformes (Osteichthyes: Sarcopterygii). Zoological Journal of the Linnean Society, 96, 119 - 166. Ahlberg, P. E. 1991. A re- examination of sarcopterygian interrelationships, with special reference to the Porolepiformes. Zoological Journal of the Linnean Society, 103, 241 - 287. Ahlberg, P. E. 1992a. A new holoptychiid porolepiform fish from the Upper Frasnian of Elgin, Scotland. Palaeontology, 35, 813 - 828. Ahlberg, P. E. 1992b. The palaeoecology and evolutionary history of the porolepiform sarcopterygians. 71 - 90. In Mark- Kurik, E. (ed.) Fossil fishes as living animals. Academy of Sciences of Estonia, Tallinn. Andrews, S. M. and Westoll, T. S. 1970. The postcranial skeleton of rhipidistian fishes excluding Eusthenopteron. Transactions of the Royal Society of Edinburgh, 68, 391 - 489. Ball, H. W., Dineley, D. L. and White, E. I. 1961. The Old Red Sandstone of Brown Clee Hill and the adjacent area. Bulletin of the British Museum (Natural History) (Geology), 5, 175 - 310. Berg, L. S. 1937. A classification of fish- like vertebrates. Bulletin de l’Académie des Sciences, de l’URSS, Classe des Sciences mathématiques et naturelles, 4, 1277 - 1280. Blieck, A. and Elliott, D. K. 2017. Pteraspidomorphs (Vertebrata), the Old Red Sandstone, and the special case of the Brecon Beacons National Park, Wales, UK. Proceedings of the Geologists- Association, 128, 438 - 446. Clément, G. 2001a. Evidence for lack of choanae in the Porolepiformes. Journal of Vertebrate Paleontology, 21, 795 - 802. Clément, G. 2001b. Etudes anatomiques des genres Porolepis, Woodward 1891 et Heimenia à rvig, 1969 (- Porolepididae- , Sarcopterygii) et du genre Powichthys Jessen, 1975 (Powichthyidae, Sarcopterygii) du Dévonien Inférieur et Moyen du Spitzberg: phylogénie des Dipnomorpha. PhD thesis, Muséum National d’Histoire Naturelle de Paris, Paris, 297  pp. Clément, G. 2004. Nouvelles données anatomiques et morphologie générale des - Porolepididae- (Dipnomorpha, Sarcopterygii). Revue de Paléobiologie, 9, 193 - 211. Clément, G. and Ahlberg, P. E. 2010. The endocranial anatomy of the early sarcopterygian Powichthys from Spitsbergen, based on CT scanning. 363 - 377. In Elliot, D. K., Maisey, J. G., Yu, X. and Miao, D. (eds). Morphology, phylogeny and paleobiogeography of fossil fishes. Friedrich Pfeil, Munich. IndexNoFollow Sarcopterygii cranial skeleton Devonian stem- lungfish computed tomography Ecology and Evolutionary Biology Science Article 2021 ftumdeepblue https://doi.org/10.1002/spp2.131510.5061/dryad.rfj6q576v 2024-07-30T04:06:07Z Porolepiforms represent a clade of Devonian stem lungfishes, divided into the cosmine- bearing and probably paraphyletic - Porolepidae- (e.g. Porolepis, Heimenia) and the cosmine- free and stratigraphically younger Holoptychiidae (e.g. Holoptychius, Glyptolepis, Laccognathus). Data on the dermoskeleton are available for both groups, but are more limited for - porolepids- . Here we present new information on the - porolepid- Durialepis edentatus from the Emsian (Early Devonian) of Germany based on micro- computed tomography. The material comprises an articulated skull of a single three- dimensionally preserved individual. The arrangement of the cheekbones of Durialepis edentatus recalls that of Porolepis brevis, with the occurrence of two subsidiary squamosals. However, the parieto- ethmoidal and postparietal shields are roughly equal in size, a condition similar to that of Glyptolepis groenlandica and intermediate between Porolepis brevis and holoptychiids. A large parasymphysial tooth plate displays five tooth rows with three large tusks in the median row, another intermediate arrangement between the primitive condition of Porolepis sp. (eight rows) and holoptychiids (five or fewer rows). Remarkably among porolepiforms, this dental plate is perfectly symmetrical. Despite the occurrence of cosmine and rhombic scales, the combination of traits displayed in Durialepis deviates from Porolepis in several ways, reflecting features shared with holoptychiids to the exclusion of other - porolepids- . Durialepis edentatus is thus a key addition to our knowledge of - porolepid- anatomy. Because Durialepis edentatus preserves much of the cranial and postcranial skeleton in a single individual, it represents a suitable early dipnomorph representative for inclusion in phylogenetic analyses on sarcopterygians and early osteichthyans. Peer Reviewed http://deepblue.lib.umich.edu/bitstream/2027.42/167437/1/spp21315_am.pdf http://deepblue.lib.umich.edu/bitstream/2027.42/167437/2/spp21315.pdf Article in Journal/Newspaper Arctic University of Michigan: Deep Blue Papers in Palaeontology 7 2 789 806 |
| spellingShingle | Sarcopterygii cranial skeleton Devonian stem- lungfish computed tomography Ecology and Evolutionary Biology Science Mondéjar‐fernández, Jorge Friedman, Matt Giles, Sam Redescription of the cranial skeleton of the Early Devonian (Emsian) sarcopterygian Durialepis edentatus Otto (Dipnomorpha, Porolepiformes) |
| title | Redescription of the cranial skeleton of the Early Devonian (Emsian) sarcopterygian Durialepis edentatus Otto (Dipnomorpha, Porolepiformes) |
| title_full | Redescription of the cranial skeleton of the Early Devonian (Emsian) sarcopterygian Durialepis edentatus Otto (Dipnomorpha, Porolepiformes) |
| title_fullStr | Redescription of the cranial skeleton of the Early Devonian (Emsian) sarcopterygian Durialepis edentatus Otto (Dipnomorpha, Porolepiformes) |
| title_full_unstemmed | Redescription of the cranial skeleton of the Early Devonian (Emsian) sarcopterygian Durialepis edentatus Otto (Dipnomorpha, Porolepiformes) |
| title_short | Redescription of the cranial skeleton of the Early Devonian (Emsian) sarcopterygian Durialepis edentatus Otto (Dipnomorpha, Porolepiformes) |
| title_sort | redescription of the cranial skeleton of the early devonian (emsian) sarcopterygian durialepis edentatus otto (dipnomorpha, porolepiformes) |
| topic | Sarcopterygii cranial skeleton Devonian stem- lungfish computed tomography Ecology and Evolutionary Biology Science |
| topic_facet | Sarcopterygii cranial skeleton Devonian stem- lungfish computed tomography Ecology and Evolutionary Biology Science |
| url | https://hdl.handle.net/2027.42/167437 https://doi.org/10.1002/spp2.1315 |