Sarcopterigios no-tetrápodos de la Formación Pizarras de Valentia (Givetiense, Devónico; Península de Iveragh, suroeste de Irlanda): reevaluación sistemática e implicaciones paleobiogeográficas

Vincent Dupret; Hannah Byrne; Tom Challands; Øyvind Hammer; Kenneth Higgs; John Long; Grzegorz Niedzwiedzki; Martin Qvarnstrom; Iwan Stossel; Per Ahlberg

doi:10.7203/sjp.26527

Sarcopterigios no-tetrápodos de la Formación Pizarras de Valentia (Givetiense, Devónico; Península de Iveragh, suroeste de Irlanda): reevaluación sistemática e implicaciones paleobiogeográficas

Translated title of the contribution: Non-tetrapod sarcopterygians from the Valentia Slate Formation (Givetian, Devonian) of the Iveragh Peninsula, south-western Ireland: systematic reappraisal and palaeobiogeo-graphic implications

Vincent Dupret, Hannah Byrne, Tom Challands, Øyvind Hammer, Kenneth Higgs, John Long, Grzegorz Niedzwiedzki, Martin Qvarnstrom, Iwan Stossel, Per Ahlberg

College of Science and Engineering

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Abstract

The Middle Devonian (Givetian) Valentia Slate Formation in the Iveragh Penin-sula, southwest Ireland, is more renowned for the second oldest record of tetrapod track-ways in the world than for its heavily metamorphosed bone remains. The present study focuses on new discoveries of non-tetrapod sarcopterygian fish fossils from the Valentia Slate Formation. Micro-CT scanning technology allows a re-interpretation of a previously published acanthodian fin spine as a fanged coronoid of a probable Rhizodontida and the identification of a Dipnoi tooth plate and bone. In addition, a scale of Holoptychius is described. The presence of rhizodontids suggests Gondwanan ties, and a first northward dispersal wave of these vertebrates into Euramerica as early as middle Givetian. This hypothesis is supported by the common occurrence of the placoderm Bothriolepis in the Valentia Slate Formation.

Translated title of the contribution	Non-tetrapod sarcopterygians from the Valentia Slate Formation (Givetian, Devonian) of the Iveragh Peninsula, south-western Ireland: systematic reappraisal and palaeobiogeo-graphic implications
Original language	Spanish
Pages (from-to)	37-46
Number of pages	10
Journal	Spanish Journal of Palaeontology
Volume	38
Issue number	1
DOIs	https://doi.org/10.7203/sjp.26527
Publication status	Published - 1 Jun 2023

Keywords

Lungfish
Toothplate
Coronoid bone
Rhizodont
μCT-scanning

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Dupret, V., Byrne, H., Challands, T., Hammer, Ø., Higgs, K., Long, J., Niedzwiedzki, G., Qvarnstrom, M., Stossel, I., & Ahlberg, P. (2023). Sarcopterigios no-tetrápodos de la Formación Pizarras de Valentia (Givetiense, Devónico; Península de Iveragh, suroeste de Irlanda): reevaluación sistemática e implicaciones paleobiogeográficas. Spanish Journal of Palaeontology, 38(1), 37-46. https://doi.org/10.7203/sjp.26527

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title = "Sarcopterigios no-tetr{\'a}podos de la Formaci{\'o}n Pizarras de Valentia (Givetiense, Dev{\'o}nico; Pen{\'i}nsula de Iveragh, suroeste de Irlanda): reevaluaci{\'o}n sistem{\'a}tica e implicaciones paleobiogeogr{\'a}ficas",

abstract = "The Middle Devonian (Givetian) Valentia Slate Formation in the Iveragh Penin-sula, southwest Ireland, is more renowned for the second oldest record of tetrapod track-ways in the world than for its heavily metamorphosed bone remains. The present study focuses on new discoveries of non-tetrapod sarcopterygian fish fossils from the Valentia Slate Formation. Micro-CT scanning technology allows a re-interpretation of a previously published acanthodian fin spine as a fanged coronoid of a probable Rhizodontida and the identification of a Dipnoi tooth plate and bone. In addition, a scale of Holoptychius is described. The presence of rhizodontids suggests Gondwanan ties, and a first northward dispersal wave of these vertebrates into Euramerica as early as middle Givetian. This hypothesis is supported by the common occurrence of the placoderm Bothriolepis in the Valentia Slate Formation.",

keywords = "Lungfish, Toothplate, Coronoid bone, Rhizodont, μCT-scanning",

author = "Vincent Dupret and Hannah Byrne and Tom Challands and {\O}yvind Hammer and Kenneth Higgs and John Long and Grzegorz Niedzwiedzki and Martin Qvarnstrom and Iwan Stossel and Per Ahlberg",

year = "2023",

month = jun,

day = "1",

doi = "10.7203/sjp.26527",

language = "Spanish",

volume = "38",

pages = "37--46",

journal = "Spanish Journal of Palaeontology",

issn = "2255-0550",

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Dupret, V, Byrne, H, Challands, T, Hammer, Ø, Higgs, K, Long, J, Niedzwiedzki, G, Qvarnstrom, M, Stossel, I & Ahlberg, P 2023, 'Sarcopterigios no-tetrápodos de la Formación Pizarras de Valentia (Givetiense, Devónico; Península de Iveragh, suroeste de Irlanda): reevaluación sistemática e implicaciones paleobiogeográficas', Spanish Journal of Palaeontology, vol. 38, no. 1, pp. 37-46. https://doi.org/10.7203/sjp.26527

Sarcopterigios no-tetrápodos de la Formación Pizarras de Valentia (Givetiense, Devónico; Península de Iveragh, suroeste de Irlanda): reevaluación sistemática e implicaciones paleobiogeográficas. / Dupret, Vincent; Byrne, Hannah; Challands, Tom et al.
In: Spanish Journal of Palaeontology, Vol. 38, No. 1, 01.06.2023, p. 37-46.

Research output: Contribution to journal › Article › peer-review

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T1 - Sarcopterigios no-tetrápodos de la Formación Pizarras de Valentia (Givetiense, Devónico; Península de Iveragh, suroeste de Irlanda)

T2 - reevaluación sistemática e implicaciones paleobiogeográficas

AU - Dupret, Vincent

AU - Byrne, Hannah

AU - Challands, Tom

AU - Hammer, Øyvind

AU - Higgs, Kenneth

AU - Long, John

AU - Niedzwiedzki, Grzegorz

AU - Qvarnstrom, Martin

AU - Stossel, Iwan

AU - Ahlberg, Per

PY - 2023/6/1

Y1 - 2023/6/1

N2 - The Middle Devonian (Givetian) Valentia Slate Formation in the Iveragh Penin-sula, southwest Ireland, is more renowned for the second oldest record of tetrapod track-ways in the world than for its heavily metamorphosed bone remains. The present study focuses on new discoveries of non-tetrapod sarcopterygian fish fossils from the Valentia Slate Formation. Micro-CT scanning technology allows a re-interpretation of a previously published acanthodian fin spine as a fanged coronoid of a probable Rhizodontida and the identification of a Dipnoi tooth plate and bone. In addition, a scale of Holoptychius is described. The presence of rhizodontids suggests Gondwanan ties, and a first northward dispersal wave of these vertebrates into Euramerica as early as middle Givetian. This hypothesis is supported by the common occurrence of the placoderm Bothriolepis in the Valentia Slate Formation.

AB - The Middle Devonian (Givetian) Valentia Slate Formation in the Iveragh Penin-sula, southwest Ireland, is more renowned for the second oldest record of tetrapod track-ways in the world than for its heavily metamorphosed bone remains. The present study focuses on new discoveries of non-tetrapod sarcopterygian fish fossils from the Valentia Slate Formation. Micro-CT scanning technology allows a re-interpretation of a previously published acanthodian fin spine as a fanged coronoid of a probable Rhizodontida and the identification of a Dipnoi tooth plate and bone. In addition, a scale of Holoptychius is described. The presence of rhizodontids suggests Gondwanan ties, and a first northward dispersal wave of these vertebrates into Euramerica as early as middle Givetian. This hypothesis is supported by the common occurrence of the placoderm Bothriolepis in the Valentia Slate Formation.

KW - Lungfish

KW - Toothplate

KW - Coronoid bone

KW - Rhizodont

KW - μCT-scanning

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U2 - 10.7203/sjp.26527

DO - 10.7203/sjp.26527

M3 - Article

AN - SCOPUS:85163634363

SN - 2255-0550

VL - 38

SP - 37

EP - 46

JO - Spanish Journal of Palaeontology

JF - Spanish Journal of Palaeontology

IS - 1

ER -

Sarcopterigios no-tetrápodos de la Formación Pizarras de Valentia (Givetiense, Devónico; Península de Iveragh, suroeste de Irlanda): reevaluación sistemática e implicaciones paleobiogeográficas

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Keywords

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