Martin Rücklin
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View article: A new ‘acanthothoracid’ placoderm from the Arctic Canada (Early Devonian) and its bearing on the evolution of jaws and teeth
A new ‘acanthothoracid’ placoderm from the Arctic Canada (Early Devonian) and its bearing on the evolution of jaws and teeth Open
The origin of jaws and teeth represents one of the most formative episodes in our own evolutionary history. However, this event is poorly understood because of a lack of detailed knowledge of key lineages, including the ‘acanthothoracid’ p…
View article: The shoulder girdle of early chondrichthyans grew by skeletal remodelling
The shoulder girdle of early chondrichthyans grew by skeletal remodelling Open
A distinct shoulder region, defined by endoskeletal and dermal girdles and associated pectoral musculature, is a major evolutionary adaptation of jawed vertebrates. In teleost model species, the large (macromeric) pectoral dermal bones can…
View article: Three-dimensional fossils of a Cretaceous collared carpet shark (Parascylliidae, Orectolobiformes) shed light on skeletal evolution in galeomorphs
Three-dimensional fossils of a Cretaceous collared carpet shark (Parascylliidae, Orectolobiformes) shed light on skeletal evolution in galeomorphs Open
A rich fossil record of teeth shows that many living shark families’ origins lie deep in the Mesozoic. Skeletal fossils of the sharks to whom these teeth belonged are far rarer and when they are preserved are often flattened, hindering und…
View article: A Collagen10a1 mutation disrupts cell polarity in a medaka model for metaphyseal chondrodysplasia type Schmid
A Collagen10a1 mutation disrupts cell polarity in a medaka model for metaphyseal chondrodysplasia type Schmid Open
View article: Parasitic fish embryos do a “front-flip” on the yolk to resist expulsion from the host
Parasitic fish embryos do a “front-flip” on the yolk to resist expulsion from the host Open
Embryonic development is often considered shielded from the effects of natural selection, being selected primarily for reliable development. However, embryos sometimes represent virulent parasites, triggering a coevolutionary “arms race” w…
View article: Supplementary table 2 from Extreme lower jaw elongation in a placoderm reflects high disparity and modularity in early vertebrate evolution
Supplementary table 2 from Extreme lower jaw elongation in a placoderm reflects high disparity and modularity in early vertebrate evolution Open
Character matrix
View article: Extreme lower jaw elongation in a placoderm reflects high disparity and modularity in early vertebrate evolution
Extreme lower jaw elongation in a placoderm reflects high disparity and modularity in early vertebrate evolution Open
Jaws are a key vertebrate feature that arose early in our evolution. Placoderms are among the first jawed vertebrates; their fossils yield essential knowledge about the early diversification of gnathostome feeding strategies, diets and mod…
View article: Deformity or variation? Phenotypic diversity in the zebrafish vertebral column
Deformity or variation? Phenotypic diversity in the zebrafish vertebral column Open
Vertebral bodies are composed of two types of metameric elements, centra and arches, each of which is considered as a developmental module. Most parts of the teleost vertebral column have a one‐to‐one relationship between centra and arches…
View article: Nanoplastics causes extensive congenital malformations during embryonic development by passively targeting neural crest cells
Nanoplastics causes extensive congenital malformations during embryonic development by passively targeting neural crest cells Open
Nanomaterials are widespread in the human environment as pollutants, and are being actively developed for use in human medicine. We have investigated how the size and dose of polystyrene nanoparticles affects malformations in chicken embry…
View article: Editorial: African vertebrates through times
Editorial: African vertebrates through times Open
EDITORIAL article Front. Earth Sci., 09 January 2023Sec. Paleontology Volume 10 - 2022 | https://doi.org/10.3389/feart.2022.1111339
View article: Passive Targeting of Neural Crest Cells by Nanoplastics Causes Extensive Congenital Malformations During Embryonic Development
Passive Targeting of Neural Crest Cells by Nanoplastics Causes Extensive Congenital Malformations During Embryonic Development Open
View article: No evidence for asymmetric sperm deposition in a species with asymmetric male genitalia
No evidence for asymmetric sperm deposition in a species with asymmetric male genitalia Open
Background Asymmetric genitalia have repeatedly evolved in animals, yet the underlying causes for their evolution are mostly unknown. The fruit fly Drosophila pachea has asymmetric external genitalia and an asymmetric phallus with a right-…
View article: Peer Review #1 of "No evidence for asymmetric sperm deposition in a species with asymmetric male genitalia (v0.2)"
Peer Review #1 of "No evidence for asymmetric sperm deposition in a species with asymmetric male genitalia (v0.2)" Open
Background.Asymmetric genitalia have repeatedly evolved in animals, yet the underlying causes for their evolution are mostly unknown.The fruit fly Drosophila pachea has asymmetric external genitalia and an asymmetric phallus with a right-s…
View article: Peer Review #1 of "No evidence for asymmetric sperm deposition in a species with asymmetric male genitalia (v0.1)"
Peer Review #1 of "No evidence for asymmetric sperm deposition in a species with asymmetric male genitalia (v0.1)" Open
Background.Asymmetric genitalia have repeatedly evolved in animals, yet the underlying causes for their evolution are mostly unknown.The fruit fly Drosophila pachea has asymmetric external genitalia and an asymmetric phallus with a right-s…
View article: Peer Review #3 of "No evidence for asymmetric sperm deposition in a species with asymmetric male genitalia (v0.1)"
Peer Review #3 of "No evidence for asymmetric sperm deposition in a species with asymmetric male genitalia (v0.1)" Open
Background.Asymmetric genitalia have repeatedly evolved in animals, yet the underlying causes for their evolution are mostly unknown.The fruit fly Drosophila pachea has asymmetric external genitalia and an asymmetric phallus with a right-s…
View article: A new selenosteid placoderm from the Late Devonian of the eastern Anti-Atlas (Morocco) with preserved body outline and its ecomorphology
A new selenosteid placoderm from the Late Devonian of the eastern Anti-Atlas (Morocco) with preserved body outline and its ecomorphology Open
Placoderms are an extinct group of early jawed vertebrates that play a key role in understanding the evolution of the gnathostome body plan, including the origin of novelties such as jaws, teeth, and pelvic fins. As placoderms have a poorl…
View article: More Bone with Less Minerals: The Effects of Dietary Phosphorus on the Zebrafish Skeleton
More Bone with Less Minerals: The Effects of Dietary Phosphorus on the Zebrafish Skeleton Open
sham.Articular cartilage lesion severity scores (mean and maximum) were similar in WT and Socs2-/-mice with either DMM, or with ageing.Micro-CT analysis revealed decreases in SCB thickness (WT: 0.15mm±0.003;KO: 0.11mm±0.003;Pb0.001), epiph…
View article: Developmental neuroanatomy of the rosy bitterling <i>Rhodeus ocellatus</i> (Teleostei: Cypriniformes)—A microCT study
Developmental neuroanatomy of the rosy bitterling <i>Rhodeus ocellatus</i> (Teleostei: Cypriniformes)—A microCT study Open
Bitterlings are carp‐like teleost fish (Cypriniformes: Acheilanathidae) known for their specialized brood parasitic lifestyle. Bitterling embryos, in fact, develop inside the gill chamber of their freshwater mussel hosts. However, little i…
View article: Increasing morphological disparity and decreasing optimality for jaw speed and strength during the radiation of jawed vertebrates
Increasing morphological disparity and decreasing optimality for jaw speed and strength during the radiation of jawed vertebrates Open
The Siluro-Devonian adaptive radiation of jawed vertebrates, which underpins almost all living vertebrate biodiversity, is characterized by the evolutionary innovation of the lower jaw. Multiple lines of evidence have suggested that the ja…
View article: Developmental neuroanatomy of the Rosy Bitterling <i>Rhodeus ocellatus</i> (Teleostei: Cypriniformes)—A microCT study
Developmental neuroanatomy of the Rosy Bitterling <i>Rhodeus ocellatus</i> (Teleostei: Cypriniformes)—A microCT study Open
Bitterlings are a group of teleost fish (Cyprinifromes: Acheilanathidae) notable for their brood parasitic lifestyle. Bitterling embryos develop as parasites inside the gill chamber of their freshwater mussel hosts. However, little is know…
View article: Author response for "Developmental neuroanatomy of the rosy bitterling <i>Rhodeus ocellatus</i> (Teleostei: Cypriniformes)—A microCT study"
Author response for "Developmental neuroanatomy of the rosy bitterling <i>Rhodeus ocellatus</i> (Teleostei: Cypriniformes)—A microCT study" Open
View article: Tooth development in the Early Devonian sarcopterygian <i>Powichthys</i> and the evolution of the crown osteichthyan dentition
Tooth development in the Early Devonian sarcopterygian <i>Powichthys</i> and the evolution of the crown osteichthyan dentition Open
In osteichthyans (bony fishes) the dentition is characterized by marginal tooth rows replaced by basal resorption. Basal resorption was present in the stem osteichthyan Andreolepis , which also possessed overgrowing tooth‐shaped odontodes,…
View article: Developmental influence on evolutionary rates and the origin of placental mammal tooth complexity
Developmental influence on evolutionary rates and the origin of placental mammal tooth complexity Open
Significance Interactions during development among genes, cells, and tissues can favor the more frequent generation of some trait variants compared with others. This developmental bias has often been considered to constrain adaptation, but…
View article: Evolution of a smile: 400 million year old spiny fish overturns shark theory of tooth origins
Evolution of a smile: 400 million year old spiny fish overturns shark theory of tooth origins Open
View article: A collagen10a1 mutation disrupts cell polarity and causes skeletal defects in a medaka model for Schmid Metaphyseal Chondrodysplasia
A collagen10a1 mutation disrupts cell polarity and causes skeletal defects in a medaka model for Schmid Metaphyseal Chondrodysplasia Open
View article: Normal stages of embryonic development of a brood parasite, the rosy bitterling <scp> <i>Rhodeus ocellatus</i> </scp> (Teleostei: Cypriniformes)
Normal stages of embryonic development of a brood parasite, the rosy bitterling <span> <i>Rhodeus ocellatus</i> </span> (Teleostei: Cypriniformes) Open
Bitterlings, a group of freshwater teleosts, provide a fascinating example among vertebrates of the evolution of brood parasitism. Their eggs are laid inside the gill chamber of their freshwater mussel hosts where they develop as brood par…
View article: A large Middle Devonian eubrachythoracid ‘placoderm’ (Arthrodira) jaw from northern Gondwana
A large Middle Devonian eubrachythoracid ‘placoderm’ (Arthrodira) jaw from northern Gondwana Open
View article: Acanthodian dental development and the origin of gnathostome dentitions analysis files
Acanthodian dental development and the origin of gnathostome dentitions analysis files Open
MATRIX.nex - phylogenetic data matrixBeast2.xml - BEAST2 xml file for tree searchmb.nex - mrBayes filetrees.trees - tree distribution from beast2 analysis, outgroup removed. This is also the input for the reconstructionsmb_timescaled.trees…
View article: Data from Rücklin et al. 2021. Acanthodian dental development and the origin of gnathostome dentitions. Nature Ecology & Evolution
Data from Rücklin et al. 2021. Acanthodian dental development and the origin of gnathostome dentitions. Nature Ecology & Evolution Open
This dataset contains three dimensional X-Ray tomographic datasets and computed tomographic models of fossilized jawbones from acanthondians (extinct stem-chondrichthyans) The data accompanies the following paper: Martin Rücklin, Benedict …
View article: A Bayesian approach to dynamic homology of morphological characters and the ancestral phenotype of jawed vertebrates
A Bayesian approach to dynamic homology of morphological characters and the ancestral phenotype of jawed vertebrates Open
Phylogenetic analysis of morphological data proceeds from a fixed set of primary homology statements, the character-by-taxon matrix. However, there are cases where multiple conflicting homology statements can be justified from comparative …