Eduardo Villalobos‐Segura
YOU?
Author Swipe
View article: The morphological evolution and phylogenetic diversity of skates and rays along the marine coastline of Mexico are linked to species diversity and extinction threats
The morphological evolution and phylogenetic diversity of skates and rays along the marine coastline of Mexico are linked to species diversity and extinction threats Open
The understanding of the interaction between morphological diversity, phylogenetic history, and biodiversity at various temporal and spatial scales is crucial for conservation of communities and species facing extinction. Batoids (skates a…
View article: Articulated specimens provide new insights into the iconic Mesozoic shark genus <i>Sphenodus</i>
Articulated specimens provide new insights into the iconic Mesozoic shark genus <i>Sphenodus</i> Open
The fossil record of sharks and rays (Elasmobranchii) consists predominantly of isolated teeth, complicating their taxonomic and phylogenetic inferences. Consequently, the study of holomorphic specimens provides crucial information to reas…
View article: Evolution of the batoidea pectoral fin skeleton: convergence, modularity, and integration driving disparity trends
Evolution of the batoidea pectoral fin skeleton: convergence, modularity, and integration driving disparity trends Open
View article: The Drivers of Mesozoic Neoselachian Success and Resilience
The Drivers of Mesozoic Neoselachian Success and Resilience Open
The modern diversity of sharks, skates, and rays (Neoselachii) is the result of various diversification and extinction events during the Mesozoic (252–66 Ma). However, the key drivers of their diversity patterns remain poorly understood de…
View article: Exceptionally preserved shark fossils from Mexico elucidate the long-standing enigma of the Cretaceous elasmobranch<i>Ptychodus</i>
Exceptionally preserved shark fossils from Mexico elucidate the long-standing enigma of the Cretaceous elasmobranch<i>Ptychodus</i> Open
The fossil fish Ptychodus Agassiz, 1834, characterized by a highly distinctive grinding dentition and an estimated gigantic body size (up to around 10 m), has remained one of the most enigmatic extinct elasmobranchs (i.e. sharks, skates an…
View article: Rostral and body shape analyses reveal cryptic diversity of Late Jurassic batomorphs (Chondrichthyes, Elasmobranchii) from Europe
Rostral and body shape analyses reveal cryptic diversity of Late Jurassic batomorphs (Chondrichthyes, Elasmobranchii) from Europe Open
The fossil record of chondrichthyans (chimaeras, sharks, rays and skates) consists largely of isolated teeth, with holomorphic specimens being extraordinary exceptions. However, numerous of these more or less completely preserved specimens…
View article: The evolutionary origin of the durophagous pelagic stingray ecomorph
The evolutionary origin of the durophagous pelagic stingray ecomorph Open
Studies of the origin of evolutionary novelties (novel traits, feeding modes, behaviours, ecological niches, etc.) have considered a number of taxa experimenting with new body plans, allowing them to occupy new habitats and exploit new tro…
View article: A Synoptic Review of the Cartilaginous Fishes (Chondrichthyes: Holocephali, Elasmobranchii) from the Upper Jurassic Konservat-Lagerstätten of Southern Germany: Taxonomy, Diversity, and Faunal Relationships
A Synoptic Review of the Cartilaginous Fishes (Chondrichthyes: Holocephali, Elasmobranchii) from the Upper Jurassic Konservat-Lagerstätten of Southern Germany: Taxonomy, Diversity, and Faunal Relationships Open
The Late Jurassic-Early Cretaceous (164–100 Ma) represents one of the main transitional periods in life history. Recent studies unveiled a complex scenario in which abiotic and biotic factors and drivers on regional and global scales due t…
View article: Systematics and Phylogenetic Interrelationships of the Enigmatic Late Jurassic Shark Protospinax annectans Woodward, 1918 with Comments on the Shark–Ray Sister Group Relationship
Systematics and Phylogenetic Interrelationships of the Enigmatic Late Jurassic Shark Protospinax annectans Woodward, 1918 with Comments on the Shark–Ray Sister Group Relationship Open
The Late Jurassic elasmobranch Protospinax annectans is often regarded as a key species to our understanding of crown group elasmobranch interrelationships and the evolutionary history of this group. However, since its first description mo…
View article: The Phylogeny of Rays and Skates (Chondrichthyes: Elasmobranchii) Based on Morphological Characters Revisited
The Phylogeny of Rays and Skates (Chondrichthyes: Elasmobranchii) Based on Morphological Characters Revisited Open
Elasmobranchii are relatively well-studied. However, numerous phylogenetic uncertainties about their relationships remain. Here, we revisit the phylogenetic evidence based on a detailed morphological re-evaluation of all the major extant b…
View article: The skeletal remains of the euryhaline sclerorhynchoid †<i>Onchopristis</i>(Elasmobranchii) from the ‘Mid’-Cretaceous and their palaeontological implications
The skeletal remains of the euryhaline sclerorhynchoid †<i>Onchopristis</i>(Elasmobranchii) from the ‘Mid’-Cretaceous and their palaeontological implications Open
We present the first known cranial remains of the fossil batoid †Onchopristis numidus. Based on two exceptionally well-preserved specimens collected from the ‘Kem Kem Beds’ (Albian–Cenomanian), south-east Morocco, an almost complete descri…
View article: Radiation and Divergence Times of Batoidea
Radiation and Divergence Times of Batoidea Open
We present a time-scaled analysis based on morphological characters to estimate the divergence ages for the major batoid clades. Two approaches were used: tip-dating, which allows the extinct taxa to be included as terminals, assessing the…
View article: Radiation and divergence times of Batoidea
Radiation and divergence times of Batoidea Open
We present a time-scaled analysis based on morphological characters to estimate the divergence ages for the major batoid clades. Two approaches were used: tip-dating, which allows the extinct taxa to be included as terminals, assessing the…
View article: The first three-dimensional fossils of Cretaceous sclerorhynchid sawfish: <i>Asflapristis cristadentis</i> gen. et sp. nov., and implications for the phylogenetic relations of the Sclerorhynchoidei (Chondrichthyes)
The first three-dimensional fossils of Cretaceous sclerorhynchid sawfish: <i>Asflapristis cristadentis</i> gen. et sp. nov., and implications for the phylogenetic relations of the Sclerorhynchoidei (Chondrichthyes) Open
A new fossil batoid (ray), Asflapristis cristadentis gen. et sp. nov., is described from six exceptionally well-preserved, three-dimensional skeletal remains from the Turonian (Late Cretaceous) of Morocco. Mechanical and acid prepar…
View article: The first three-dimensional fossils of Cretaceous sclerorhynchid sawfish: <i>Asflapristis cristadentis</i> gen. et sp. nov., and implications for the phylogenetic relations of the Sclerorhynchoidei (Chondrichthyes)
The first three-dimensional fossils of Cretaceous sclerorhynchid sawfish: <i>Asflapristis cristadentis</i> gen. et sp. nov., and implications for the phylogenetic relations of the Sclerorhynchoidei (Chondrichthyes) Open
A new fossil batoid (ray), Asflapristis cristadentis gen. et sp. nov., is described from six exceptionally well-preserved, three-dimensional skeletal remains from the Turonian (Late Cretaceous) of Morocco. Mechanical and acid prepar…
View article: New record of Zameus squamulosus (Chondrichthyes: Squaliformes: Somniosidae) in the Southern Gulf of Mexico
New record of Zameus squamulosus (Chondrichthyes: Squaliformes: Somniosidae) in the Southern Gulf of Mexico Open
Zameus squamulosus is a somniosid shark with a patchy world-wide distribution that has been reported throughout the Atlantic, Indian, western, north, central and south-eastern Pacific Oceans. In the Northern Gulf of Mexico Zameus squamulos…