Omar Cirilli

Omar Cirilli
Howard University | HU

PhD

About

34
Publications
10,285
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169
Citations
Introduction
Additional affiliations
November 2018 - January 2022
University of Florence
Position
  • PhD Student
Education
September 2016 - July 2018
University of Florence
Field of study
  • Vertebrate Paleontology

Publications

Publications (34)
Conference Paper
Full-text available
Umbria represents one of the most interesting areas for studying Pleistocene mammal faunas in Italy thanks to the great richness of fossiliferous sites distributed in all its territory. Most of the local faunal assemblages (LFAs) have been found in the Tiberino Basin, which extends over a large portion of the regional territory. Instead, in this wo...
Conference Paper
Full-text available
The Pliocene and Early Pleistocene three-toed horses of Western Eurasia (Caucasus, Anatolia, Balkans, Eastern and Central Europe, Italian and Iberian peninsulae and England) have been studied since the second half of the 19th Century, with the following taxa identified from several fossiliferous sites: “Hipparion” crassum, “Hipparion” rocinantis, “...
Article
Full-text available
The present work provides a revision of the complete fossil collection of Equus stehlini from the Italian Early Pleistocene (late Villafranchian) of the Upper Valdarno Basin (Tuscany, Italy). The species was originally described in the second half of the last century, even if recent studies questioned its distinct species status, considering it a s...
Article
We undertake a comparative mammalian zoogeographic analysis with the aim of revealing the extent to which the Dmanisi Early Pleistocene large mammal assemblage resembles, at the genus level, African, Arabian, and Eurasian localities of similar age. The inclusion of Old World Pliocene and Pleistocene mammalian faunas provides us with insights into t...
Article
The carnivore guild of the Early Pleistocene site of Dmanisi is among the most diverse of the Early Pleistocene of the entire Old World. It includes 14 carnivoran taxa: Homotherium latidens, Megantereon whitei, Panthera onca georgica, Acinonyx pardinensis, Lynx issiodorensis; Pachycrocuta brevirostris; Canis (Xenocyon) lycaonoides, Canis borjgali,...
Article
Equus stenonis is one of the most iconic fossil species of the Early Pleistocene. Although it is known from the 19th century, its taxonomic and evolutionary position has been extensively debated among equid specialists, including multiple interpretations. The current work aims to review the European E. stenonis record, by morphological, morphometri...
Article
The Equus datum has been established as a geochronologic 'instantaneous' migratory event of a North American Equus species into Eurasia at the beginning of the Pleistocene (2.58 Ma). A remarkable radiation of Equus followed across Eurasia and Africa. Dmanisi includes excellent remains of Equus, well calibrated between 1.85 and 1.76 Ma. Our morpholo...
Article
Free download - Share Link: https://authors.elsevier.com/a/1d6d8AlZXMPNI Abstract_Rhinocerotidae represents a common element in the Eurasian Pleistocene faunas. Origin, dispersal route, and biochronology of several species are still poorly understood due to gaps in the fossil record, in particular from central Eurasia. A remarkable collection of r...
Article
Full-text available
Evolution of the genus Equus has been a matter of long debate with a multitude of hypotheses. Currently, there is no consensus on either the taxonomic content nor phylogeny of Equus. Some hypotheses segregate Equus species into three genera, Plesippus, Allohippus and Equus. Also, the evolutionary role of European Pleistocene Equus stenonis in the o...
Article
Full-text available
The monodactyl horses of the genus Equus originated in North America during the Pliocene, and from the beginning of the Pleistocene, they have been an essential part of the large ungulate communities of Europe, North America and Africa. Understanding how body size of Equus species evolved and varied in relation to changes in environments and diet t...
Article
We undertake a redescription of the equid sample from the Early Pleistocene of Roca-Neyra, France. This locality has been recently calibrated at the Pliocene/Pleistocene boundary (2.6 ± 0.2 Ma) and therefore it is of interest for the first appearance of the genus Equus and last appearance of hipparionine horses. The Roca-Neyra equid sample, re-anal...
Article
Stenonine horses roamed across Eurasia for a long-time interval between the Early Pleistocene and the early Middle Pleistocene. These forms probably derived from North American Equus simplicidens and recent research suggests that they can be at the basis of the radiation of the extant African zebras. Equus stenonis is the most widespread stenonine...
Article
The Villafranchian fossil record of Perissodactyla is of a great interest because the appearance of the genus Equus and disappearance of the genus Tapirus mark important faunal turnovers. Here, we provide new data on Italian Villafranchian Tapiridae, Rhinocerotidae, and Equidae with updates from the last comprehensive review; most relevant are thos...
Article
Full-text available
Sahabi, Libya is an important latest Miocene locality having yielded an extensive paleobotanical and vertebrate fauna. Amongst the fossil mammals there occurs an extensive, species diverse record of hipparionine horses. We develop here a complete record of Sahabi Eurygnathohippus feibeli now based on dental and postcranial material, in comparison t...
Article
Full-text available
Equus stenonis is one of the most prevalent European Pleistocene fossil horses. It is believed to be the possible ancestor of all Old World Early Pleistocene Equus, extant zebras and asses, and as such provides insights into Equus evolution and its biogeography and paleoecology. The Equus stenonis holotype skull (IGF560) was first described by Igin...
Conference Paper
Full-text available
Equus stenonis and Equus stehlini are two of the most important equids in the Early Pleistocene of Europe; nevertheless, some issues about their taxonomy, occurrences and evolutionary history are still matter of debate, with different opinions among different authors. Here new evidences from the Italian fossil record of Upper Valdarno and Olivola...
Article
Full-text available
bstract. The fossiliferous locality of Tizi N’Tadderht, already known in the literature , has yielded a significant vertebrate fossil association as it represents the first documentation of a Late Miocene vertebrate fauna in the western area of North Africa. The group of fossil Equidae here analyzed had been preliminarly studied by previous authors...
Poster
Full-text available
The extant African zebras include Equus grevyi (Ethiopia and Kenya), Equus quagga (Ethiopia to southern Africa) and Equus zebra (Southern Africa), E. grevyi being the largest. In order to understand the evolution of the zebra clade during the Plio-Pleistocene, we have compared the cranial and postcranial features of E. grevyi with the Old World fos...
Article
Full-text available
Biochronology is important to vertebrate chronology because the primary temporal units developed and applied by vertebrate paleontologists for correlation of terrestrial deposits (Land Mammal Ages, LMA) are all biochronologic units. Specific mammal biochronologic scales have been developed for Europe (MN units or ELMA), Asia (ALMA), North America (...
Poster
Full-text available
A critical revision of Villafranchian fossil record of Perissodactyls in Italy is undertaken herein to provide insights (“lights and shadows”) of occurrences and evolution of this group. The genus Tapirus occurred in Italy during the latest Miocene and it became extinct in Italy at the end of the Pliocene (early Villafranchian), at the transition...
Article
Full-text available
We report here ecological and morphological characterization of the main Old World Equus in North America, Asia, Europe, and Africa, by comparing the studied fossil forms with the living Equus grevyi zebra. Equus simplicidens from North America, Equus livenzovenzis, Equus stenonis, and Equus stehlini from Italy, Equus sivalensis from India, Equus c...
Conference Paper
Full-text available
As Sahabi is a celebrate fossiliferous locality from the late Miocene do North Africa, Libya. The discovery of the site is due to Carlo Petrocchi, in the first half of the last century; the continuous excavations and expeditions in the area have recovered over than 5500 fossil vertebrates from 94 vertebrate localities of the Late Miocene age (MN13;...
Article
Full-text available
We report here the occurrence and metric characteristics of a large species of Equus from Montopoli (Tuscany, Italy) correlated with the middle Villafranchian, 2.6 Ma (early Pleistocene). This species co-occurs with a rare “Hipparion” sp. at Montopoli. We compare the Montopoli Equus cf. livenzovensis with a large suite of extant Equus including zeb...
Conference Paper
Full-text available
The Equus Datum has been traditionally viewed as a single immigration event of a North American Equus species into Eurasia at the base of the Pleistocene (2.58 Ma.) This hypothesis has yet to be rigorously tested taxonomically within a geochronologically well resolved context. Toward a better understanding of the taxonomic content of the Old World...
Article
Full-text available
We report here for the first time the occurrence in the Montopoli large mammal fossil assemblage of a small equid taxon identified as “Hipparion” sp., associated to the monodactyl large horse Equus cf. livenzovensis. This occurrence has been recognised on a specimen that the late De Giuli (1938-1988) identified as Hipparion sp. in unpublished notes...
Poster
Full-text available
In Italia sono numerosi i siti paleontologici con resti di macro- e microvertebrati fossili tardo Pleistocenici provenienti da contesti ipogei o concentrati all’interno di cavità naturali. La maggior parte di queste località sono conosciute e molto ben documentate nella letteratura fin dall’inizio del XX secolo. In Toscana meridionale sono concentr...
Article
Full-text available
The Late Miocene continental successions of the Baccinello-Cinigiano basin (Grosseto), one of the longest and most continuous vertebrate-bearing continental successions in the Neogene Italian record, yielded at least four superimposed vertebrate assemblages bracketed in the time span 8.3-6.4 Ma. The Baccinello-Cinigiano basin is famous for recordin...
Poster
Full-text available
The present contribution follows a field trip at the Upper Valdarno basin (UV; Tuscany) in the frame of the Master course in Stratigraphic Geology (Scienze e Tecnologie Geologiche - Florence University). The UV is one of the largest and famous Plio-Pleistocene intermontane continental basins of the Northern Apennines, documented by more twenty year...
Poster
Full-text available
Tra le varie metodologie del restauro di materiale paleontologico, questa comunicazione presenta gli interventi che hanno permesso il restauro di un reperto contenente resti appartenenti a uno o più esemplari di tartaruga rinvenuti nei pressi di Baccinello (GR). Il fossile è stato recuperato dal bacino neoautoctono di Baccinello-Cinigiano, in sedim...

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