GeobiosPub Date : 2025-03-05DOI: 10.1016/j.geobios.2024.11.006
Javier Castro-Terol , Alejandro Pérez-Ramos , Jingmai K. O’Connor , José Luis Sanz , Francisco J. Serrano
{"title":"Micro-CT reconstruction reveals new information about the phylogenetic position and locomotion of the Early Cretaceous bird Iberomesornis romerali","authors":"Javier Castro-Terol , Alejandro Pérez-Ramos , Jingmai K. O’Connor , José Luis Sanz , Francisco J. Serrano","doi":"10.1016/j.geobios.2024.11.006","DOIUrl":"10.1016/j.geobios.2024.11.006","url":null,"abstract":"<div><div>The enantiornithine <em>Iberomesornis romerali</em> from the Lower Cretaceous site of Las Hoyas (Spain) was originally described more than 35 years ago. As one of the first known articulated partial skeletons of this clade, <em>I. romerali</em> has been critical to our understanding of early avian systematics. Due to its preservation as a largely two-dimensional slab specimen, previous anatomical descriptions were unable to fully capture its anatomy. Here, we present new anatomical data based on micro-computed tomography of the holotype. We reconstruct five previously poorly known osteological elements, i.e., cervical vertebrae, pygostyle, coracoid, furcula, and humerus. Re-evaluation of these elements resulted in revised scorings for 15 morphological characters commonly used for cladistic analysis of Aves. The results of the modified character matrix support <em>Iberomesornis</em> in a derived position within Enantiornithes, close to the Longipterygidae. In addition, new findings in the coracoid and humerus reveal well-developed muscles for the elevation (i.e., supracoracoideus) and flexion–extension (extensor carpi radiale) of the wing. The new evidences, together with the typical enantiornithine furcula and the small size of the holotype, suggest that <em>I. romerali</em> was capable of flapping flight.</div></div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"90 ","pages":"Pages 17-30"},"PeriodicalIF":1.6,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143927440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
GeobiosPub Date : 2025-03-05DOI: 10.1016/j.geobios.2024.11.004
Mario Marqueta , Carmen Núñez-Lahuerta , Rosa Huguet , Josep Maria Vergès
{"title":"The end of the Pleistocene in south-western Europe: The avian assemblages from Heinrich event 3 to the Last Glacial Maximum in the Prades mountains (north-eastern Iberian Peninsula)","authors":"Mario Marqueta , Carmen Núñez-Lahuerta , Rosa Huguet , Josep Maria Vergès","doi":"10.1016/j.geobios.2024.11.004","DOIUrl":"10.1016/j.geobios.2024.11.004","url":null,"abstract":"<div><div>The study of bird assemblages recovered from archaeological sites provides palaeoclimatic and environmental information, as well as data on the formation processes assemblages and the agents that have acted upon them. In this paper, we present the results of palaeontological and taphonomic analysis of seven avian assemblages recovered from two sites located in the north-eastern Iberian Peninsula: Galls Carboners (GC; 31,380–31,170 cal. BP) and Cudó (CU; CU107 31,245–24,404 cal. BP and CU105 15,585–10,199 cal. BP). GC has yielded four different assemblages (GC105, GC106, GC107, GC108) corresponding to the Heinrich event 3, with only three different taxa, dominated by the presence of Columba. Most of these remains belong to immature individuals. At CU, we studied two assemblages (CU107–CU105) corresponding to Heinrich 3, Heinrich 2 and the Last Glacial Maximum with a similar taxonomic diversity to GC. Assemblage CU105 exhibits the greatest diversity, and small Passeriformes are the most abundant taxa recorded. Of particular interest is the presence of cf. <em>Pinicola enucleator</em> in CU107, today absent in the area and present in boreal areas. Taphonomic results suggest that the origin of accumulations for both sites (GC and CU) was natural death. In addition, different agents modified these accumulations: small carnivorous mammals and nocturnal raptors affected GC’s assemblages, while nocturnal and diurnal raptors would have been the main predators of the birds documented at the CU site. Despite the differences between the accumulations, Heinrich 3 assemblages from GC and CU show a similar low degree of diversity, dominated by rock-dwelling taxa. This may be related to the harsh environment of the area during Heinrich event 3, and not to a taphonomic bias. The more diverse assemblage of CU105 points to an ecosystem recovery after the LGM.</div></div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"90 ","pages":"Pages 59-76"},"PeriodicalIF":1.6,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143928087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
GeobiosPub Date : 2025-03-05DOI: 10.1016/j.geobios.2024.08.021
Vanesa L. De Pietri , R. Paul Scofield , Suzanne J. Hand , Mike Archer , Alan J.D. Tennyson , Trevor H. Worthy
{"title":"Early Miocene gull-like birds (Charadriiformes: Laridae) from New Zealand","authors":"Vanesa L. De Pietri , R. Paul Scofield , Suzanne J. Hand , Mike Archer , Alan J.D. Tennyson , Trevor H. Worthy","doi":"10.1016/j.geobios.2024.08.021","DOIUrl":"10.1016/j.geobios.2024.08.021","url":null,"abstract":"<div><div>The shorebird family Laridae encompasses gulls, terns, skimmers, and noddies, which today primarily inhabit near-shore marine environments worldwide. Several species of larids of uncertain phylogenetic position within the group have been described from the late Oligocene-Early Miocene of Saint-Gérand-le-Puy, France, but despite this diversity, their global pre-Pliocene fossil record remains poor, especially in the Southern Hemisphere. Here we describe two new species of Laridae from the lacustrine deposits of St Bathans in Central Otago, New Zealand: <em>Australarus bakeri</em> nov. gen., nov. sp., one of the smallest larids known to date, and the medium-sized <em>Miolarus rectirostrum</em> nov. gen., nov. sp. The new species are very distinct from the Oligo-Miocene European taxa, and, at least for <em>A. bakeri</em>, the presence of immature bones indicates local breeding. <em>Australarus bakeri</em>’s distinctiveness and presence of seemingly plesiomorphic features, especially of the humerus and some referred elements may support a phylogenetic position outside crown-group Laridae. The intra-familial relationships of <em>M. rectirostrum</em> remain unclear due to the fragmentary nature of the specimens, despite a resemblance of the maxillary rostrum to some species of gulls. Both new species underscore the diversity and importance of the shorebirds so far described from the Early Miocene St Bathans Fauna.</div></div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"90 ","pages":"Pages 45-57"},"PeriodicalIF":1.6,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143927441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
GeobiosPub Date : 2025-02-01DOI: 10.1016/j.geobios.2024.11.001
Dumitru-Daniel Badea , Bogdan-Gabriel Răţoi , Vicente D. Crespo , Mihai Brânzilă
{"title":"The small mammal assemblage from the Late Miocene of Dolhești-1 (Moldavian Platform - Romania)","authors":"Dumitru-Daniel Badea , Bogdan-Gabriel Răţoi , Vicente D. Crespo , Mihai Brânzilă","doi":"10.1016/j.geobios.2024.11.001","DOIUrl":"10.1016/j.geobios.2024.11.001","url":null,"abstract":"<div><div>Dolhești-1 is located 50 km south of Iași town (Iași County), in the northeast part of Romania. The sedimentary deposits exposed at Dolhești-1 belong to the last megacycle of the Moldavian Platform. Approximately one ton of sediment was screen-washed to collect the fossils using stable sieves. The most essential fossil elements identified in the locality were teeth of small mammals. More than 30 teeth were identified belonging to nine taxa: <em>Hansdebruijnia erksinae</em>, <em>Neocricetodon progressus</em>, <em>Vasseuromys pannonicus</em>, <em>Myomimus dehmi</em>, <em>Hylopetes</em> aff. <em>hoeckarum</em>, Sciuridae indet., <em>Ochotona eximia</em>, <em>Schizogalerix</em> cf. <em>sarmaticum</em>, and <em>Crusafontina</em> cf. <em>kormosi</em>, the rodents being the most diverse group. Based on the presence of <em>Vasseuromys pannonicus</em>, the age of the small mammal assemblage is interpreted as early Turolian (MN 11, Late Miocene). The genera <em>Vasseuromys</em>, <em>Hylopetes</em>, and <em>Hansdebruijnia</em> are reported for the first time in the Late Miocene of eastern Romania. This small mammal assemblage identified from Dolhești-1 represents the first early Turolian microvertebrate findings from the Late Miocene of Romania. The diversity of this faunal association represents an advantage for the interpretation of the paleoenvironment. Furthermore, the discovery of these taxa constitutes an important contribution to the study of small mammals from the Late Miocene of the Eastern Carpathians Foreland, adding new data about Turolian localities in Eastern Europe.</div></div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"88 ","pages":"Pages 5-14"},"PeriodicalIF":1.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143387135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
GeobiosPub Date : 2025-02-01DOI: 10.1016/j.geobios.2024.02.008
Clara Mielgo , José Yravedra Sainz de los Terreros , David Álvarez-Alonso , María de Andrés-Herrero , Aitor Hevia-Carrillo
{"title":"Unraveling the interplay between humans and carnivores in El Olivo Cave during the Middle and Upper Paleolithic period (Llanera, Asturias, Spain)","authors":"Clara Mielgo , José Yravedra Sainz de los Terreros , David Álvarez-Alonso , María de Andrés-Herrero , Aitor Hevia-Carrillo","doi":"10.1016/j.geobios.2024.02.008","DOIUrl":"10.1016/j.geobios.2024.02.008","url":null,"abstract":"<div><div>El Olivo Cave (Llanera, Asturias, Spain) is a small karst cave within the Aboño River watershed. It holds a significant archaeological and paleontological record dating from the Middle and late Upper Paleolithic, featuring several lithic artifacts and faunal remains in each archaeological level. The study of the faunal remains reveals a high representation of ungulates, with <em>Cervus elaphus</em> and <em>Equus ferus</em> being the main ones. Carnivores are also represented by diverse species such as <em>Vulpes vulpes</em> and <em>Canis lupus</em>, among others. The taphonomic analysis evidenced the presence of human activity, accompanied by a significant incidence of tooth marks across all stratigraphic units and water-related processes in the lower part of the sequence. During this temporal range, there were faunal accumulations of anthropogenic origin altered by the action of other agents, especially carnivores. A diverse array of carnivore used the same space and taking advanced of the anthropogenic residues as scavengers. Moreover, we suggest a commensal synanthropic behavior exhibited by foxes. Consequently, El Olivo Cave is an illustrative case to explore the carnivore action in levels with human presence, something unusual at the late Upper Paleolithic sites in Northern Iberia.</div></div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"88 ","pages":"Pages 175-185"},"PeriodicalIF":1.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141842003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
GeobiosPub Date : 2025-02-01DOI: 10.1016/j.geobios.2024.05.003
José Yravedra , Darío Herranz-Rodrigo , Verónica Estaca-Gómez , Idoia Claver , Gonzalo Linares-Matás , Alexia Serrano-Ramos , Carmen Luzón , Juan José Rodríguez-Alba , José A. Solano , Juan Manuel Jiménez-Arenas
{"title":"Who is who and why. Implications of tooth-marks identification at two sites in the Orce Basin Archaeological Zone (OBAZ; southern Spain)","authors":"José Yravedra , Darío Herranz-Rodrigo , Verónica Estaca-Gómez , Idoia Claver , Gonzalo Linares-Matás , Alexia Serrano-Ramos , Carmen Luzón , Juan José Rodríguez-Alba , José A. Solano , Juan Manuel Jiménez-Arenas","doi":"10.1016/j.geobios.2024.05.003","DOIUrl":"10.1016/j.geobios.2024.05.003","url":null,"abstract":"<div><div>The Orce Basin Archaeological Zone (OBAZ; Granada, Spain) is well known because it contains some of the most important Early Pleistocene archaeo-palaeontological sites for understanding the earliest human settlement in the westernmost part of Eurasia and its ecological context. Among those are Venta Micena (VM), Barranco León (BL) and Fuente Nueva 3 (FN3). The role played by the extinct <em>Pachycrocuta brevirostris</em> present at the OBAZ sites has long been recognised in the literature. However, little or nothing is known about the agency of the other documented carnivore species. Nevertheless, the development of technologies such as 3D modelling, geometric morphometrics, robust data modelling and artificial intelligence algorithms makes it possible to characterise a type of tooth mark (pits) and its assignment to a taxon. Moreover, such a combination of methodologies allows us to infer novel aspects related to the behaviour of carnivores, to establish interpretative differentiation between the carnivore agents at VM3 and BL, to point to the interactions among them and with <em>H</em>omo, and to review some proposals on the first human dispersal outside Africa.</div></div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"88 ","pages":"Pages 289-298"},"PeriodicalIF":1.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143387034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
GeobiosPub Date : 2025-02-01DOI: 10.1016/j.geobios.2024.08.010
Eliana P. Coturel
{"title":"The Carboniferous Gondwanan lycophyte Bumbudendron, revisited","authors":"Eliana P. Coturel","doi":"10.1016/j.geobios.2024.08.010","DOIUrl":"10.1016/j.geobios.2024.08.010","url":null,"abstract":"<div><div>The type material of <em>Bumbudendron</em> is reviewed in the light of current knowledge about fossil lycophytes. The bark is characterized having cushions with an infrafoliar bladder and a ligule. The variation in leaf bases and leaf scars and their presence may not only depend on the plant’s age or position on the stem, but also the plant’s preservation. The diagnosis of the genus is emended to include the presence of a ligule and a ligule pit in sterile and fertile leaves, the presence or absence of a preserved leaf scar, and variations in size and shape of the cushions resulting from preservation. <em>Bumbudendron nitidum</em> is here regarded as a synonym of <em>B</em>. <em>millanii</em>, the latter name having priority. In this concept, genus <em>Bumbudendron</em> comprises five species: <em>B. paganzianum</em> and <em>B</em>. <em>millanii</em> (Carboniferous of Argentina and Brazil), <em>B. versiforme</em> (Carboniferous and Lower Permian of Argentina and Uruguay), <em>B. patagonicum</em> (Permian of Argentina), and <em>B. peruvianum</em> (Lower Carboniferous of Peru). A review of the species of lycophytes from India, Niger, Ghana, and Egypt is suggested to determine whether they are assignable to <em>Bumbudendron</em>, and thus to define the geographic range of this genus.</div></div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"88 ","pages":"Pages 61-69"},"PeriodicalIF":1.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143387138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
GeobiosPub Date : 2025-02-01DOI: 10.1016/j.geobios.2024.03.001
Alfred Sanchis , Elsa Duarte , Leopoldo Pérez , Cristina Real , Asier Gómez-Olivencia , Francisco Pastor , Marco de la Rasilla
{"title":"Morphometry of a partial Late Pleistocene dhole (Cuon alpinus europaeus (Bourguignat, 1868); Carnivora, Canidae) skeleton from Llonin Cave (Asturias, Spain) and its taphonomic origin","authors":"Alfred Sanchis , Elsa Duarte , Leopoldo Pérez , Cristina Real , Asier Gómez-Olivencia , Francisco Pastor , Marco de la Rasilla","doi":"10.1016/j.geobios.2024.03.001","DOIUrl":"10.1016/j.geobios.2024.03.001","url":null,"abstract":"<div><div>In this paper, we present the remains of a single dhole discovered in three Late Pleistocene levels (<em>Cono Posterior</em> sector) of Llonin Cave, in Asturias (Spain). Said remains consist of the partial skeleton of an adult individual, showing small-sized dentition with a high degree of hypercarnivorism, typical of populations with derived traits from the Late Pleistocene in Europe. Morphometric analysis of the bone assemblage reveals that it belongs to the subspecies <em>Cuon alpinus europaeus</em> (Bourguignat, 1868). A direct dating on a dhole bone has provided a date of 29,231 ± 387 BP and confirms its archaeological stratigraphic position associated with the Gravettian phase of the site. The taphonomic history of the dhole assemblage and their spatial distribution provides information about the interaction processes and cave occupation dynamics by these canids and by prehistoric human groups.</div></div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"88 ","pages":"Pages 227-240"},"PeriodicalIF":1.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143387030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
GeobiosPub Date : 2025-02-01DOI: 10.1016/j.geobios.2024.08.013
Darío Estraviz-López , Aurora Grandal-d’Anglade , María Ríos
{"title":"Early Pleistocene (Epivillafranchian) vertebrates from Portugal: An updated review","authors":"Darío Estraviz-López , Aurora Grandal-d’Anglade , María Ríos","doi":"10.1016/j.geobios.2024.08.013","DOIUrl":"10.1016/j.geobios.2024.08.013","url":null,"abstract":"<div><div>The Epivillafranchian (1.2 to 0.8 Ma) fossil vertebrate assemblages of Portugal are extremely poorly known compared with to those from the eastern half of Iberia. We review material from one of the two localities of this age previously known in Portugal, Algoz, and present a new microvertebrate locality, Santa Margarida. Both localities are situated in Algarve (South Portugal). The fauna of Algoz includes <em>Hippopotamus antiquus</em>, <em>Eucladoceros</em> sp., <em>Metacervocerus rhenanus</em> and an indeterminate leporid. There are remains of at least two individuals of each deer species from Algoz, although most of the remains are from the same juvenile individual of <em>Eucladoceros</em> sp., about 6 months old. The age of Algoz is determined to be ∼1.2 Ma given the combination of species and their biometrical and morphological characters. Santa Margarida has at least ten species of microvertebrates: Lacertidae indet., <em>Crocidura</em> sp., <em>Sorex</em> sp., <em>Oryctolagus</em> cf<em>. cuniculus</em>, <em>Eliomys</em> cf. <em>quercinus</em>, <em>Apodemus</em> cf. <em>sylvaticus</em>, <em>Allocricetus bursae</em>, <em>Victoriamys chalinei</em>, <em>Iberomys huescarensis</em>, and <em>Iberomys brecciensis</em>. This is the first occurrence of <em>Victoriamys chalinei</em> and <em>Iberomys huescarensis</em> –two vole species typical from the Early Pleistocene – in Portugal. Santa Margarida is younger than Algoz, ranging between ∼0.9 and ∼0.6 Ma, which means that the Early-Middle Pleistocene transition could be represented by this locality.</div></div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"88 ","pages":"Pages 77-89"},"PeriodicalIF":1.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143387025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
GeobiosPub Date : 2025-02-01DOI: 10.1016/j.geobios.2024.05.007
Obed Galicia-Coleote , Jose Alberto Cruz , Eduardo Corona-M.
{"title":"A new approach to the fossil flamingo from Pie de Vaca locality (Puebla, central México) and some taxonomic and biogeographic implications","authors":"Obed Galicia-Coleote , Jose Alberto Cruz , Eduardo Corona-M.","doi":"10.1016/j.geobios.2024.05.007","DOIUrl":"10.1016/j.geobios.2024.05.007","url":null,"abstract":"<div><div>Pie de Vaca is a late Cenozoic site located in the municipality of Tepexi de Rodríguez, Puebla, Mexico. It is known for its ichnofossil record including footprints of camelids, carnivores, and peccaries, as well as the taphoglyph of an almost complete flamingo skeleton. This fossil specimen was previously identified as <em>Phoenicopterus stocki,</em> a small extinct species, through linear osteometric comparisons of the tibiotarsus. This study presents new data on the morphological features of the taphoglyph skull impression. The extant genera <em>Phoenicopterus</em>, <em>Phoenicoparrus</em>, and <em>Phoeniconaias</em> differ in the morphology and size of the skulls. The fossil specimen analyzed exhibits a small head and a distinct cranial shape when compared to those genera. The results confirm that the taphoglyph belongs to an adult of a small phenicopterid. The two-dimensional morphometric comparisons of the tibiotarsus based on the ratio of distal depth to distal width shows that the taphoglyph is larger than <em>Phoeniconaias minor</em> and <em>Phoenicopterus minutus</em>, and more similar to <em>Phoenicopterus ruber</em>. The analysis revealed previously unknown characteristics of the taphoglyph and refutes its previous identification as the extinct species <em>Phoenicopterus stocki.</em> The specimen appears to be a small adult flamingo, but it differs from known extant genera. These findings confirm the presence of a group of small flamingos in the late Cenozoic of North America and Mexico, with the most complete specimen being the taphoglyph of Pie de Vaca. However, further research remains necessary to establish its connections with extinct and extant phenonicopterids.</div></div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"88 ","pages":"Pages 103-111"},"PeriodicalIF":1.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143387027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}