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Bony structure derived from intramembranous ossification
A dermal bone or investing bone or membrane bone is a bony structure derived from intramembranous ossification forming components of the vertebrate skeleton
Dermal_bone
to refer to several non-homologous bones present in various vertebrate groups. The rostral bones are dermal bones present in the front part of the skull
Rostral_bone
Bone of the neurocranium
The occipital bone (/ˌɒkˈsɪpɪtəl/) is a cranial dermal bone and the main bone of the occiput (back and lower part of the skull). It is trapezoidal in
Occipital_bone
Skull bone in most reptiles, amphibians and birds
squamosal and quadratojugal bones form the cheek series of the skull. The bone forms an ancestral component of the dermal roof and is typically thin compared
Squamosal_bone
Bony structures in the dermis
accumulation of carbon dioxide in the blood. The calcium and magnesium in the dermal bone will release alkaline ions into the bloodstream, acting as a buffer against
Osteoderm
The dermal sphenethmoid is an unpaired midline bone present in the skull roof of some frogs. It overlies the sphenethmoid, and fuses to it during ontogeny
Dermal_sphenethmoid
Compound bone in the skull of worm lizards
homologous to the orbitosphenoid, an endochondral bone, but also includes a component of dermal bone. The tabulophenoid forms the floor of the front of
Tabulosphenoid
Skull bone found in most vertebrates
other bones, which may vary by species. The jugal is present in placoderms as the suborbital plate. Chondrichthyans have lost all dermal bone, including
Jugal_bone
Portion of the cranium that is composed of dermal bone
that is composed of dermal bone, as opposed to the chondrocranium and splanchnocranium, which are composed of endochondral bone. Bones of the dermatocranium
Dermatocranium
Dermal bone situated between the parietal and supraoccipital
The term interparietal bone (os interparietale or Inca bone or os inca var.) is used to refer to a number of dermal bones situated between the parietal
Interparietal_bone
Unpaired bone of the skull
The internasal is a dermal bone present in some vertebrates. When present, it is situated between the nasal bones, and forms a part of the dermatocranium
Internasal
Extinct genus of stegosaurian dinosaurs
several dorsal vertebrae, ribs, a limb bone, and dermal bones. Thyreosaurus is characterized by a unique dermal armor with an asymmetrical texture, indicating
Thyreosaurus
Side of the head behind the eyes
presence of an upper hole, a lower hole, both, or neither in the cover of dermal bone that formerly covered the temporalis muscle, whose origin is the temple
Temple_(anatomy)
Hard skeletal covering of fish
(lampreys and hagfishes) have smooth skin without scales and without dermal bone. Lampreys get some protection from a tough leathery skin, while hagfish
Fish_scale
Index of articles associated with the same name
Gasterosteiformes that includes the sticklebacks and relatives plates of dermal bones of the armadillo Zygomatic plate, a bony plate derived from the flattened
Plate_(anatomy)
Long bone that serves as a strut between the scapula and the sternum
two-thirds. It is made up of spongy cancellous bone with a shell of compact bone. It is a dermal bone derived from elements originally attached to the
Clavicle
Lower jaw bone
behind the incisor teeth is surrounded and invaded by the dermal bone (also known as the membrane bone). Somewhat later, accessory nuclei of cartilage make
Mandible
Shield for the ventral and dorsal parts of turtles
parts of the pelvis, and other bones found in most reptiles. The bone of the shell consists of both skeletal and dermal bone, showing that the complete enclosure
Turtle_shell
Formation of bony skin plates in vertebrates
Osteoderms are dermal bone structures that support the upper layer of skin and serve as protection against the elements in a large variety of extinct
Osteoderm_development
Facial bones of a skull
considered separately from the cranium. The facial skeleton is composed of dermal bone and derived from the neural crest cells (also responsible for the development
Facial_skeleton
Bone in the cranium of some vertebrates
The parasphenoid is a bone which can be found in the cranium of many vertebrates. It is an unpaired dermal bone which lies at the midline of the roof
Parasphenoid
considered paraphyletic and thus obsolete. angular The angular is a dermal bone of the lower jaw. In lateral view, it covers a larger area of the posteroventral
Glossary_of_dinosaur_anatomy
Bony structure that forms the head in vertebrates
the lower jaws being separate elements. Bony fishes have additional dermal bone, forming a more or less coherent skull roof in lungfish and holost fish
Skull
Dermal bone in the eye socket region
The palpebral bone is a term applied to a number of small dermal bones found in the region of the eye socket in a variety of animals. The names "palpebral"
Palpebral_(bone)
Extinct order of tetrapods
the function of the dermal ornamentation is that it may have supported blood vessels, which could transfer carbon dioxide to the bones to neutralize acidic
Temnospondyli
Cartilaginous precursor of the jaw
remain cartilaginous in most animals. The mandible itself is formed from dermal bone that sheaths Meckel's cartilage. The intervening part of the cartilage
Meckel's_cartilage
Roofing bones of the skull
fishes, including land-living vertebrates. The bones are derived from dermal bone and are part of the dermatocranium. In comparative anatomy, the term
Skull_roof
Placental mammals in the order Cingulata
example, Priodontes and Tolypeutes). The armor is formed by plates of dermal bone covered in relatively small overlapping epidermal scales called "scutes"
Armadillo
Species of ray-finned fish
the dermal bones. The bowfin skull is made up of 28 fused bones, which compose the dermatocranium. The roof of the mouth is made up of three bones, the
Bowfin
element in that it ossifies intramembranously, and as such is made of dermal bone. The ophidiosphenoid occurs lateral to the prootic, to which it may fuse
Ophidiosphenoid
Extinct genus of fishes
individual most likely ate already dead fish. However, in 2022, an actual dermal bone of Leedsichthys was identified showing evidence of healing after an attack
Leedsichthys
Skull bone
bone is a skull bone in most tetrapods, including amphibians, sauropsids (reptiles, birds), and early synapsids. In most tetrapods, the quadrate bone
Quadrate_bone
Diverse genus of placoderm fishes of the Devonian
Bothriolepis. Using the sample, it is evident that the mental plate (a dermal bone that forms the upper part of the jaw) of antiarchs is homologous with
Bothriolepis
Genus of extinct fishes
California, Texas, Tennessee, and Poland. Dunkleosteus was covered in dermal bone forming armor plates across its skull and front half of its trunk. This
Dunkleosteus
Fish and tetrapod skull bones
single bone. The postparietals were dermal bones situated along the midline of the skull, behind the parietal bones. They formed part of the rear edge
Postparietal
Fillers for cosmetic skin smoothing
fillers have risen in popularity mostly due to the wide application of dermal fillers in 1980s. Their premise is to help fill in facial wrinkles, provide
Injectable_filler
Anatomical term for an outgrowth of bone covered in a sheath of horn
Some spurs form as an outgrowth of an existing bone, though most are secondarily formed as dermal bone hinged to the skeleton through a semi-rigid joint
Spur_(zoology)
Skull bone
The postorbital is one of the bones in vertebrate skulls which forms a portion of the dermal skull roof and, sometimes, a ring about the orbit. Generally
Postorbital_bone
Group of genetic disorders resulting in fragile bones
ˌɪmpɜːrˈfɛktə/; OI), colloquially known as brittle bone disease, is a group of genetic disorders that all result in bones that break easily. The range of symptoms—on
Osteogenesis_imperfecta
Paraphyletic infraphylum of fish
needed] In modern agnathans, the body is covered in skin, with neither dermal or epidermal scales. The skin of hagfish has copious slime glands, the slime
Agnatha
mammals, the periotic bones are fused into a single bone known as the petrosal. Prootic Epiotic Opisthotic Sphenotic Supraotic Dermal bone Dermatocranium Splanchnocranium
Chondrocranium
Skin macrophages used for wound repair and hair growth
chloride. The infiltration of bone-marrow-derived monocytes generated postnatally creates a distinct population of dermal macrophages. They are LY6Chi
Dermal_macrophage
Extinct species of bony fish
osteichthyans is made exclusively of endochondral bone, the pelvis of Guiyu included dermal bones as well, including paired lateral plates and an unpaired
Guiyu_oneiros
Skull bone in vertberates
(incorporating both frontals and both parietals). The frontoparietal is a dermal bone, and by extension part of the dermatocranium, like the frontals and parietals
Frontoparietal
Extinct order of reptiles
hupehsuchians is the presence of dermal plates over the neural spines of the approximately 34 presacral vertebrae. A small dermal bone overlies each space between
Hupehsuchia
Extinct clade of dinosaurs
sutural line of the nasals, presence of a wide jugal, remodeling of skull dermal bone, down-turned dentary tooth row". Among primitive thyreophorans, Scutellosaurus
Thyreophora
Infraorder of lizards
have bony plates underneath them called "osteoderms". Osteoderms are dermal bone structures that support the upper layer of skin and serve as protection
Scincomorpha
The so-called "laterosphenoid" of alethinophidian snakes ossifies as dermal bone, making it part of the dermatocranium. This element is now referred to
Laterosphenoid
Glue used to close wounds in the skin
A dermal adhesive (or skin glue) is a glue used to close wounds in the skin as an alternative to sutures, staples, or clips. Glued closure results in less
Dermal_adhesive
Extinct class of jawless fishes
movement through the water for their armoured bodies, which were covered in dermal bone. They also had sucking mouth parts and some species may have lived in
Pteraspidomorpha
Order of reptiles
ISBN 978-0-292-70529-6. Janis, C. M.; Devlin, K; Warren, D. E.; Witzmann, F (2012). "Dermal bone in early tetrapods: a palaeophysiological hypothesis of adaptation for
Crocodylia
Origin and diversification of fish through geologic time
composed of a protective dermal bone-based skeleton. The rest of the body was scaled or naked, depending on the species. The dermal pectoral girdle articulated
Evolution_of_fish
Bone in fish below the pectoral fin
shoulder girdle. Unlike most bones of the shoulder, but like the clavicle and interclavicle, it develops as dermal bone. It articulates with the clavicle
Cleithrum
Armored jawless fish of the Paleozoic
ossicles, paired pectoral fins, a dermal skeleton with three layers (a basal layer of isopedin, a middle layer of spongy bone, and a superficial layer of dentin)
Ostracoderm
Early Devonian genus of placoderm fish
tesserae (a type of mineralized tile) between the dermal bones on the roof of the skull as the dermal bones in the roof of Romundina's skull are fused together
Romundina
Protective covering of the ventral area of a vertebrate
Gastralia (sing.: gastralium), or abdominal ribs, are dermal bones found in the ventral body wall of modern crocodilians and tuatara, and many prehistoric
Gastralia
with a quadratojugal bone, it often forms a portion of the jaw joint. Developmentally, the quadratojugal bone is a dermal bone in the temporal series
Quadratojugal_bone
Order of armored mammals from the Americas
Armadillos have dorsal armor that is formed by osteoderms, plates of dermal bone covered in relatively small, overlapping keratinized epidermal scales
Cingulata
Extinct genus of fishes
the condition in M. dicki. The clasper of M. dicki is a deeply grooved dermal bone that curves laterally at almost a 90 degree angle to the side of the
Microbrachius
Extinct group of armored dinosaurs
backward-projecting postacetabular process was elongate. A thin layer of dermal bone covers the sacrum, reinforcing the pelvis with a "pelvic shield". This
Parankylosauria
Clade of the first four-limbed vertebrates and their descendants
Janis, C. M.; Devlin, K.; Warren, D. E.; Witzmann, F. (August 2012). "Dermal bone in early tetrapods: a palaeophysiological hypothesis of adaptation for
Tetrapod
Soft outer covering organ of vertebrates
by solid, protective bony scales. Apart from some particularly large dermal bones that form parts of the skull, these scales are lost in tetrapods, although
Skin
Study of the form or morphology of fishes
separate elements not attached to the skull. Bony fishes have additional dermal bone, forming a more or less coherent skull roof in lungfish and holost fish
Fish_anatomy
Extinct order of amphibians
and large fenestrae. The primitive form Ophiderpeton has a pattern of dermal bones in the skull similar in respects to the temnospondyls. But in the advanced
Aistopoda
Culinary ingredient
and lower jaws being separate elements. Bony fishes have an additional dermal bone, forming a more or less coherent skull roof in lungfish and holost fish
Fish_head
Part of the skull around the brain
downwards. The braincase contains a greater number of bones, most of which are endochondral rather than dermal: The singular basioccipital is the rear lower part
Neurocranium
Super Smooth scales (dermal denticles) coat the skin of sharks, rays, and cartilaginous fishes due to the absence of dermal bone. These scales are present
Shark_anatomy
Extinct genus of amphibians
dentary, and coronoid formed in the jaw. After this phase formed the first dermal bones: the frontal, parietal, and squamosal. This phase of metamorphosis is
Apateon
Clade of tetrapodomorphs
tetrapods, with a low, solid shape combining numerous strongly-textured dermal bones. In its original usage, the term quickly became obsolete. In 1998, Canadian
Stegocephali
Extinct genus of fishes
Gyrosteus mirabilis in 1889–90, distinguishing it from Chondrosteus based on dermal bone patterns and branchial structure. A partial skull roof was noted but
Gyrosteus
Genus of ankylosaurian dinosaur
shield", a single fused sheet of dermal bone over its hips (sacral area) which perhaps was not attached to the underlying bone and decorated with tubercles
Polacanthus
Diverse clade of vertebrate animals
cranial bones, rooted, medial insertion of mandibular muscle in the lower jaw. The head and pectoral girdles are covered with large dermal bones. The eyeball
Osteichthyes
Element of fish anatomy
and lower jaws being separate elements. Bony fishes have additional dermal bone, forming a more or less coherent skull roof in lungfish and holost fish
Fish_jaw
Most abundant structural protein in animals
Depending on the degree of mineralization, collagen tissues may be rigid (bone) or compliant (tendon) or have a gradient from rigid to compliant (cartilage)
Collagen
Large reptile in the genus Alligator
Like other crocodilians, alligators have an armor of bony scutes. The dermal bones are highly vascularised and aid in calcium balance, both to neutralize
Alligator
Class of jawed cartilaginous fish
male), also called placoid scales (or dermal denticles), making it feel like sandpaper. In most species, all dermal denticles are oriented in one direction
Chondrichthyes
Extinct subclass of jawless fishes
is probably pad-shaped and diphycercal. The dermal bones of arandaspids consist of aspidine (acellular bone) and are ornamented with oakleaf-shaped tubercles
Arandaspida
Swedish paleontologist
Meddelelser om Grønland, 96(2), 1-74. Säve-Söderbergh, G. (1933). The dermal bones of the head and the lateral line system in Osteolepis macrolepidotus
Gunnar_Säve-Söderbergh
and Nyctimantis a dermal bone known as the dermal sphenethmoid forms part of the skull roof dorsal to the sphenethmoid. The dermal sphenethmoid often
Sphenethmoid
Evolution of four legged vertebrates and their derivatives
overall armour of rhomboid cosmin scales, the skull had a full cover of dermal bone, constituting a skull roof over the otherwise shark-like cartilaginous
Evolution_of_tetrapods
Type of facial piercing
reputable piercers will refuse to do surface piercings, instead preferring sub-dermal implants. Anti-eyebrows are also known as upper cheek piercings, tears,
Anti-eyebrow
Medical condition
Gómez–López-Hernández syndrome (GLH) or cerebellotrigeminal-dermal dysplasia is a rare neurocutaneous (Phakomatosis) disorder affecting the trigeminal
Gómez–López-Hernández syndrome
Gómez–López-Hernández_syndrome
Extinct genus of tetrapodomorphs from the Devonian
to an animal about 3 metres (9.8 ft). Its skull had heavy, ornamented dermal bones and its lower jaw was relatively long and shallow. The teeth were stout
Hyneria
Extinct genus of amphibians
Plagiosauridae) from the Late Triassic of Germany and the repeated loss of dermal bones in plagiosaurids". Zoological Journal of the Linnean Society. doi:10
Plagiosaurus
Superorder of reptiles
rhynchocephalians), as well as the development of a subolfactory process on the frontal bones of the skull. The group Squamata includes snakes, lizards, and amphisbaenians
Lepidosauria
Family of turtles
has a layer of solid bone beneath it, as in other turtles, but this is absent at the outer edges. Some species also have dermal bones in the plastron, but
Trionychidae
Extinct genus of temnospondyls
Rinehart, Larry F; Lucas, Spencer G (2013). "The functional morphology of dermal bone ornamentation in temnospondyl amphibians". In Tanner, Lawrence H.; Justin
Anaschisma
Evolution of fish
1017/S1477201908002551. S2CID 85924210. Otto, M.; Laurin, M. (2001). "Microanatomy of the dermal skeleton of Balticaspis latvica (Osteostraci, Middle Devonian)". Journal
Timeline_of_fish_evolution
Extinct genus of maxillate placoderm fish
somewhat dorsoventrally compressed placoderm fish. The mandible (made from dermal bone) of this genus differs from Entelognathus and Qilinyu—two other maxillate
Bianchengichthys
camouflage skin pattern, a five-horned crown ridge, a face armored with dermal bone plates, and a spike-studded tail. They usually feed on Somp rats, Eopies
List_of_Star_Wars_creatures
Infraclass of fishes
group include a autosphenotic bone lacking a dermal component, the lack of a canal bearing part of the antorbital bone, the lack of vertebral centra fused
Teleosteomorpha
Tongue and hyoid bone of a fish
glossohyal, in fish anatomy, is the tongue and hyoid bone. It is the lingual plate, which is a dermal toothed bone that covers or fuses with the basihyal. The
Glossohyal
Genus of reptile-like amphibians
an average of 7.5 to 12.5 cm, and the width being 8.5 to 14 cm. The dermal bones which form the skull roof are similar to typical labyrinthodonts and
Kotlassia
Extinct genus of varanopid amniote
tetrapods. Such eyelid ossicles are distinct from the rod-like dermal bones, called palpebral bones, that evolved above the eye socket in a number of later non-synapsid
Ascendonanus
Genus of reptiles
ribs. In some discoveries, ribs were found associated with gastralia, dermal bones located in the ventral region of the body. Postosuchus had a massively
Postosuchus
American physician (1914–2005)
undergoing such procedures as self-induced iron deficiency anemia, sub-dermal bone transplantation, and consumption of radio-labeled iron. In the winter
William_Holmes_Crosby_Jr.
Extinct genus of tetrapods
Joermungandr, the ridged, slightly overlapping scales may combine both dermal bone (like many extinct amphibians) and a keratin covering (like many living
Odonterpeton
In bony fishes, a group of dermal bones cover the gills and are collectively referred to as the operculum. These bones are lost early in the evolution
Batrachian_operculum
Genus of Late Jurassic armored dinosaur
described in the Bone Wars, was first discovered by Arthur Lakes and H.C. Beckwith, consisting of several caudal vertebrae, a dermal plate, and several
Stegosaurus
Extinct genus of ground sloths from North America
Guatemala. Paramylodon exhibits the characteristic of having had dermal ossicles, small bones embedded in the skin, presumably adding a degree of protection
Paramylodon
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DERMAL BONE
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