| 1. |
- Blom, Henning, Dr, 1969-, et al.
(författare)
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Thelodont scales from the Lower Devonian of Novaya Zemlya Archipelago, Arctic Russia.
- 2022
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Ingår i: Spanish Journal of Palaeontology. - : Universitat de Valencia. - 2255-0550 .- 2660-9568.
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Tidskriftsartikel (refereegranskat)abstract
- Scales of a new thelodont species, Amaltheolepis terranovi sp. nov., are described from the upper Emsian, Lower Devonian Shevchenkinskaya Formation of Novaya Zemlya, Arctic Russia. The new species shows strong resemblance with the Emsian “Verdalen assemblage” from Spitsbergen, supporting an Emsian age for the upper part of the Shevchenkinskaya Formation. This conclusion in the context of the various Amaltheolepisassemblages from Spitsbergen allows for a more accurate comparison and correlation between assemblages from different regions in the Northern Hemisphere, suggesting that the type species, Amaltheolepis winsnesifrom Spitsbergen, is Eifelian in age
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| 2. |
- Dupret, Vincent, et al.
(författare)
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Non-tetrapod sarcopterygians from the Valentia Slate Formation (Givetian, Devonian) of the Iveragh Peninsula, south-western Ireland: systematic reappraisal and palaeobiogeographic implications
- 2023
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Ingår i: Spanish Journal of Palaeontology. - 2255-0550 .- 2660-9568. ; 38:1, s. 37-45
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Tidskriftsartikel (refereegranskat)abstract
- The Middle Devonian (Givetian) Valentia Slate Formation in the Iveragh Peninsula, southwest Ireland, is more renowned for the second oldest record of tetrapod trackways 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.
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| 3. |
- Pujalte, Victoriano, et al.
(författare)
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Integrative stratigraphy and climatic events of a new lower paleogene reference section from the betic cordillera : Río gor, Granada province, se Spain
- 2017
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Ingår i: Spanish Journal of Paleontology. - 2255-0550. ; 32:1, s. 185-206
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Tidskriftsartikel (refereegranskat)abstract
- Research interest in the early Paleogene was greatly enhanced after the recognition of several short-lived warming events in that period (hyperthermals), considered ancient analogues of the ongoing warming of the Earth climate. In the Caravaca and Alamedilla sections, the previously most studied lower Paleogene sections of the Subbetic Zone (Betic Cordillera), only the most prominent of these hyperthermals had been located, the so-called Paleocene/Eocene Thermal Maximum. The Río Gor section, though less studied, is found to comprise a lower Paleogene succession that is more expanded and complete than Caravaca and Alamedilla; it contains record of the Early Late Paleocene and Paleocene/Eocene Thermal Events, and at least one additional Eocene hyperthermal, thus offering an excellent opportunity to study these climatic events in the Subbetic Zone. Study of the Río Gor section is still in progress, this paper summarizing the state-of-the art of ongoing research.
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