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This research has been funded by Spanish Ministry of Economy and Competitiveness projects CGL2012-35199, CGL2015-68363-P and PID2019-111488RB-I0 0. Author APB was funded by Spanish Ministry of Economy and Competitiveness grant BES-2013-0655509. Access to fossil vertebrate collections in Argentina was made possible by Spanish Ministry of Economy and Competitive-ness grant EEBB-I-16-11875. Author PM was funded by FCT/MCTES for one CEEC Individual contract (CEECIND/00726/2017) and a Haaga Family Postdoctoral Fellow (2016-2018) in the NHMLA (CA, USA) . We want to thank S. Chapman and Natural History Museum of London (UK) staff for facilitating access to their collections. Ac-cess to NHM (UK) was made possible thanks to the European Union Council Synthesys program GB-TAF-6153. We want to thank also the alumni of the Faculty of Arts from the UCM (Madrid, Spain) and preparation staff for providing the sample for this study. We also want to thank many others for access to specimens under their care, including S. Langreo from the Museo de Paleontologia de Castilla-La Mancha (Cuenca, Spain) ; J.A. Ramirez de la Pecin~a and C. Corral from the MCNA (Vitoria, Spain) ; R. Coria from the MCF (Plaza Huincul, Argentina) ; L. Filippi from the MRS (Rinc?on de los Sauces, Argentina) ; M. Reguero from the MLP (La Plata, Argentina) ; A. Otero from CONICET (La Plata, Argentina) ; S. Devincenzi from the IANI-GLA (Mendoza, Argentina) ; and B. Gonz?alez Riga from the UNCUYO (Mendoza, Argentina) ; C. Mun~oz from the MPCA (Cipolletti, Argentina) ; I. Cerda from the CONICET (Cipolletti, Argentina) ; P. Ortiz from the PVL (Tucum?an, Argentina) ; and A.G. Kramarz and M. Ezcurra from the MACN (Buenos Aires, Argentina) . Comments of the Editor as well as two anonymous reviewers highly improved this contribution.

Analysis of institutional authors

Páramo, ACorresponding AuthorSanz, JlAuthor
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Article

3D geometric morphometrics of the hind limb in the titanosaur sauropods from Lo Hueco (Cuenca, Spain)

Publicated to:CRETACEOUS RESEARCH. 134 105147- - 2022-06-01 134(), DOI: 10.1016/j.cretres.2022.105147

Authors: Paramo, Adrian; Escaso, F.; Mocho, P.; Marcos-Fernandez, F.; Sanz, J. L.; Ortega, F.;

Affiliations

Nat Hist Museum Los Angeles Cty, Dinosaur Inst, 900 Exposit Blvd, Los Angeles, CA USA - Author
Univ Autonoma Madrid, Fac Ciencias, Dept Biol, Calle Darwin 2,Campus Cantoblanco, Madrid, Spain - Author
Univ Complutense Madrid, Fac Bellas Artes, C Pintor Greco 2, Madrid, Spain - Author
Univ Lisbon, Inst Dom Luiz, Edificio C6, Lisbon, Portugal - Author
Univ Nacl Educ Distancia, Fac Ciencias, Grp Biol Evolut, RefGI314,Ave Esparta S-N, Madrid 28232, Spain - Author
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Abstract

The Campanian-Maastrichtian Konzentrat-Lagersta euro tte at Lo Hueco (Spain) has yielded a large sample of appendicular elements referable to sauropod titanosaurs that exhibit considerable morphological variability. The taxonomic assessment of these elements is difficult, they display various degrees of preservation (including fragmentary preservation and taphonomic deformation, each of which were addressed in the methods applied in this study), and also many of the appendicular elements are found as isolated remains. Accurate taxonomic determinations are generally difficult to achieve from the morphological information available on appendicular remains of sauropods, and particularly in groups such as titanosaurirformes. In these cases, the geometric morphometrics (GMM) tool kit is a suitable methodology to explore morphological variability for taxonomic assessment. In this study, several femora, tibiae and fibulae from Lo Hueco were analyzed. To this purpose, the remains were digitized, and the resultant mesh representations were used for definition of 3D landmarks and curves that were analyzed through GMM methods. The quantification of shape variables allowed the use of clustering and K-means techniques as well as a proposed statistical workflow. Several hypotheses of a priori anatomically-defined morphotypes and the results from our machine learning algorithms revealed the presence of two main morphotypes as the most plausible explanation for the morphological variability in the sample of titanosaurian hind limb elements from Lo Hueco.(c) 2022 Elsevier Ltd. All rights reserved.

Keywords
Castilla-la manchaCretaceousCuenca [castilla-la mancha]DinosaurDinosauriaGeometric morphometricsIbero-armorican domainLo huecoMissing data estimationMorphologyMorphometryMorphotypeMultivariate dataNeuquensaurusPrincipal-componentProvinceR-packageSauropodaShapeSpainSpecimenTastavinsaurus-sanziTaxonomyTitanosauriaUpper cretaceous

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal CRETACEOUS RESEARCH due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2022, it was in position 12/54, thus managing to position itself as a Q1 (Primer Cuartil), in the category Paleontology.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations provided by WoS (ESI, Clarivate), it yields a value for the citation normalization relative to the expected citation rate of: 2.55. This indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 14, 2024)

This information is reinforced by other indicators of the same type, which, although dynamic over time and dependent on the set of average global citations at the time of their calculation, consistently position the work at some point among the top 50% most cited in its field:

  • Weighted Average of Normalized Impact by the Scopus agency: 3 (source consulted: FECYT Feb 2024)
  • Field Citation Ratio (FCR) from Dimensions: 3.77 (source consulted: Dimensions May 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-05-11, the following number of citations:

  • WoS: 5
  • Scopus: 9
  • Google Scholar: 6
  • OpenCitations: 8
Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-05-11:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 22.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 22 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 28.45.
  • The number of mentions on the social network Facebook: 1 (Altmetric).
  • The number of mentions on the social network X (formerly Twitter): 46 (Altmetric).
Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Portugal; United States of America.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (PARAMO BLAZQUEZ, ADRIAN) .

the author responsible for correspondence tasks has been PARAMO BLAZQUEZ, ADRIAN.