Research Paper

Thelodont scales from the Lower Devonian of Novaya Zemlya Archipelago, Arctic Russia


HENNING BLOM
Subdepartment of Evolution and Development, Department of Organismal Biology, Upssala University, Norbyvägen 18A, SE-752 36 Uppsala, Sweden; Henning.Blom@ebc.uu.se
Corresponding author

VALÉRIA VAŠKANINOVÁ

Institute of Geology and Palaeontology, Faculty of Science, Charles University, Albertov 6, 12843 Prague, Czech Republic; va.vaska@gmail.com

VALENTINA KARATAJŪTĖ-TALIMAA
Department of Geology and Mineralogy, Vilnius University, M. K. Ciurlionio 21/27, LT-03101 Vilnius, Lithuania.

ŽIVILĖ ŽIGAITĖ
Subdepartment of Evolution and Development, Department of Organismal Biology, Upssala University, Norbyvägen 18A, SE-752 36 Uppsala, Sweden; zigaite@ebc.uu.se


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 Amaltheolepis assemblages 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 winsnesi from Spitsbergen, is Eifelian in age.

Key words: Thelodont scales, Systematics, Correlation, Devonian, Emsian, Novaya Zemlya.

How to cite: Blom, H., Vaškaninová, V., Karatajūtė-Talimaa, V., & Žigaitė, Z. 2023. Thelodont scales from the Lower Devonian of Novaya Zemlya Archipelago, Arctic Russia. Spanish Journal of Palaeontology, 38(1), 9-14.

Received 30 November 2022, Accepted 2 March 2023, Published online 21 March 2023

https://doi.org/10.7203/sjp.26231