Andrea Villa, Ana B. Quadros, Massimo Delfino, Àngel H. Luján, Arnau Bolet, Isaac Casanovas‐Vilar, Josep M. Robles, David M. Alba
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The rise and fall of the Iberian cobras (Elapidae, Naja) in the context of their European and global fossil record
Very few remains of elapid snakes are known from the Iberian Peninsula, but these include a probable endemic extinct species of cobra, Naja iberica from the Late Miocene. We here describe isolated cobra vertebrae from several Middle–Late Miocene localities in the Vallès‐Penedès Basin (Catalonia, Spain). All of these fossils are herein referred to an indeterminate species of the genus Naja. These remains are the first conclusive evidence that cobras were present in Iberia before the Messinian Salinity Crisis, and that they persisted there throughout the Miocene (and ultimately until the Pliocene). Recently, a phylogeny of extinct Naja based on cranial and vertebral morphology recognized N. iberica as a distinct lineage separate from the Central European one, represented mainly by Naja romani. However, due to taxonomic uncertainties, it is still unclear whether Iberian cobras were all part of a single lineage or whether several Naja lineages inhabited the Iberian Peninsula. They went extinct in Iberia before the end of the Pliocene. In the Vallès‐Penedès Basin, cobras were living in a mosaic environment, surviving through different phases characterized by different environmental features.
期刊介绍:
Papers in Palaeontology is the successor to Special Papers in Palaeontology and a journal of the Palaeontological Association (www.palass.org). The journal is devoted to the publication of papers that document the diversity of past life and its distribution in time and space.
Papers in Palaeontology is devoted to the publication of papers that document the diversity of past life and its distribution in time and space. As a sister publication to Palaeontology its focus is on descriptive research, including the descriptions of new taxa, systematic revisions of higher taxa, detailed biostratigraphical and biogeographical documentation, and descriptions of floras and faunas from specific localities or regions. Most contributions are expected to be less than 30 pp long but longer contributions will be considered if the material merits it, including single topic parts.
The journal publishes a wide variety of papers on palaeontological topics covering:
palaeozoology,
palaeobotany,
systematic studies,
palaeoecology,
micropalaeontology,
palaeobiogeography,
functional morphology,
stratigraphy,
taxonomy,
taphonomy,
palaeoenvironmental reconstruction,
palaeoclimate analysis,
biomineralization studies.