The Aragonian and Vallesian high-resolution micromammal succession from the Calatayud-Montalbán Basin (Aragón, Spain)

García-Paredes, Israel; Álvarez-Sierra, M. Ángeles; Ostende, Lars W. van den Hoek; Hernández-Ballarín, Verónica; Hordijk, Kees; López-Guerrero, Paloma; Oliver, Adriana; Peláez‐Campomanes, Pablo

doi:10.1016/j.crpv.2015.09.014

Cited by 27 publications

(11 citation statements)

References 34 publications

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“…Glirudinus modestus differs from G. gracilis and G. undosus by its simpler dental pattern, whereas its size is intermediate between both species, G. undosus being larger. Although this genus is not very common in the Spanish record, G. modestus is a representative taxa of the Ramblian and early Aragonian rodent faunas from the Calatayud-Montalbán Basin (Daams 1985;García-Paredes 2006;Van der Meulen et al 2012;García-Paredes et al 2016). Furthermore, it has been reported from several Ramblian localities of the Loranca Basin (Province of Cuenca; Morales et al 1999); and the Aragonian of Bunyol (Valencia; Daams 1976) and the Barranco de Morteral section (Valencia;Ruiz-Sánchez et al 2003).…”

Section: Discussionmentioning

confidence: 99%

Les Cases de la Valenciana, a new early Miocene small-mammal locality from the Vallès-Penedès Basin (Catalonia, Spain)

et al. 2017

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The Vallès-Penedès Basin (Catalonia, Spain) is classical area for the study of Miocene land mammal faunas. Nevertheless, the early Miocene part of the record has deserved little attention as compared to younger intervals. Most notably, the small mammals of this age have not been described in detail, consequently hampering the correlation of the Vallès-Penedès record with other chronological schemes. In this work we describe the rich and diverse small mammal fauna from Les Cases de la Valenciana site (Gelida, Alt Penedès) which includes marsupials, eulipotyphlans, lagomorphs and rodents. On the basis of the presence of the cricetids Megacricetodon and Democricetodon this site is correlated with European Neogene zone MN4, yielding an age of 17-16 Ma. However, the rodent assemblage is fully comparable to that of chronologically close localities of the Calatayud-Montalbán Basin (Aragon, Spain), indicating that the same biochronological scheme can be applied to both areas. In this way, the coexistence of the eomyids Ligerimys ellipticus and Ligerimys florancei coupled with the presence of Megacricetodon primitivus indicates a correlation with local biozone Ca of the Calatayud-Montalbán Basin, ranging from 16.3 to 16 Ma. Finally, the correlation of other early Miocene sites of the Vallès-Penedès Basin is discussed and refined.

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Section: Discussionmentioning

confidence: 99%

Les Cases de la Valenciana, a new early Miocene small-mammal locality from the Vallès-Penedès Basin (Catalonia, Spain)

et al. 2017

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“…Because Siwalik strata are generally well exposed, individual fossil localities can be dated in this fashion. This method is widely applied globally (e.g., Garcés et al, 2003;Tedford et al, 2013;Van Dam et al, 2014;García-Paredes et al, 2016).…”

Section: Geologymentioning

confidence: 99%

Tempo and Mode: Evidence on a Protracted Split From a Dense Fossil Record

2021

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Fossil records generally inform paleobiologists about extinct taxa and rates of evolution measured at the scale of millions of years. Good records that are densely sampled through time can reveal species level details such as longevity in local sections. Yet fossil data normally do not address details of lineage microevolution because the density through time of lineage sampling is insufficient to perceive patterns at a precision finer than 106 years in most cases. This study concerns details of a splitting event in the evolution of murine rodents, an event for which multiple fossil samples dated to a precision of 105 years fortuitously document the tempo and mode of origin of sister species, the stems of two extant tribes of mice. Evolution of early Murinae in the northern part of the biogeographically restricted Indian subcontinent between 11.6 and 10.5 Ma involved cladogenesis of two crown taxa, the extant tribes Murini and Arvicanthini. Large samples of fossil rodent teeth document their divergence from a common morphological pool. Definitive basal Murini and Arvicanthini at 10.5 Ma are similar in size and differ by subtle features of the dentition. Those features occur sporadically in the common pool of older fossil teeth at 11.2, 11.4, and 11.6 Ma as inconsistent polymorphisms. Interpreted as a single lineage in the 11.6–11.2 Ma interval, variability of this abundant murine incorporated the roots of the two crown tribes. The pattern through time suggests morphological stasis for several hundred thousand years prior to splitting. This special case informs us on one example of evolution and shows that the tempo of splitting evolution in some cases may be measured in hundreds of thousands of years, followed by stasis once daughter species have differentiated morphologically.

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“…The occurrence of this species in the Ribesalbes Alcora Basin constitutes its first record in the Iberian Peninsula, and one of the last records of this genus in the same geographic zone. In the CalatayudMontalbán Basin Palaeosciurus appeared at the end of the Agenian (CuencaBescós 1988) and, according to GarcíaParedes et al (2016), it became extinct in the Ramblian (local zone A, MN3, early Miocene). In the VallèsPenedès Basin it has only been recorded, as P. aff.…”

Section: Biostratigraphymentioning

confidence: 99%

Diggers, gliders and runners: The squirrels from the Ribesalbes-Alcora Basin (East of Spain)

Crespo¹,

Fagoaga²,

Ruiz-Sánchez³

et al. 2021

Bull. Geosci.

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The family Sciuridae currently comprises more than 273 species and 50 genera, distributed in all continents except Australia and Antarctica. This group, together with the mountain beavers (Aplodontiidae) constitute the Suborder Sciurida in the order Rodentia (McKenna & Bell 1997, Churakov et al. 2010). In the Miocene the sciurids experienced a big eco morphologic diversification (with terrestrial, arboreal and gliding forms) as well as a substantial increase in diversity, with up to six species coexisting in some sites. In the Plio Pleistocene transition, this family underwent a crisis, with less genera surviving in Europe than before, reflecting the deterioration of the climate (de Bruijn 1999). In the Iberian Peninsula, the dominant ecomorphological type during the early Miocene are the ground squirrels, with a combined representation of the genera Heteroxerus and Atlantoxerus at many sites, accompanied to a lesser degree by Arago xerus,

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The Aragonian and Vallesian high-resolution micromammal succession from the Calatayud-Montalbán Basin (Aragón, Spain)

Cited by 27 publications

References 34 publications

Les Cases de la Valenciana, a new early Miocene small-mammal locality from the Vallès-Penedès Basin (Catalonia, Spain)

Les Cases de la Valenciana, a new early Miocene small-mammal locality from the Vallès-Penedès Basin (Catalonia, Spain)

Tempo and Mode: Evidence on a Protracted Split From a Dense Fossil Record

Diggers, gliders and runners: The squirrels from the Ribesalbes-Alcora Basin (East of Spain)

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