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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 of
Parasphenoid
Part of the skull around the brain
The singular parasphenoid is one of the few dermal components of the braincase, a flat plate below the basisphenoid. The parasphenoid acts as a component
Neurocranium
Extinct genus of tetrapodomorphs
Most unique features relate to the palate (roof of the mouth). The parasphenoid bone (which forms the floor of the braincase) is large and wide, with
Gaiasia
Teeth growing on the roof of the mouth
palatine, pterygoid (including the pterygoid flange), ectopterygoid, and parasphenoid. These teeth can either be placed in rows, similar to the marginal dentition
Palatal_dentition
Order of fishes
America. These fish are characterized by the presence of teeth on the parasphenoid. The snakeheads and the anabantoids are united by the presence of the
Anabantiformes
Clade of tetrapodomorphs
division between the ethmoid and sphenoid processes, as well as vomeral and parasphenoid processes similar to those of more derived tetrapods. Eotetrapodiformes
Eotetrapodiformes
Clade of ray-finned fishes
are a dorsal fin with independent rays, and a posteriorly elongated parasphenoid. Cladistia are the earliest diverging branch of living Actinopterygii
Cladistia
Extinct genus of reptiles
dentition, lacking the speciations seen in latter species. It also has parasphenoid palatal teeth, a feature not seen in any other choristodere. D. Sigogneau-Russell
Ikechosaurus
Family of snakes
indentations, and optic foramina that typically traverse the frontal–parietal–parasphenoid sutures. Most Colubridae are oviparous (mode of reproduction where an
Colubridae
Genus of dinosaurs from the Late Cretaceous Period
Roman youth around the neck, in reference to the bulbous capsule on the parasphenoid at the base of the dinosaur's skull. Such a feature had not been described
Gallimimus
Bone of the neurocranium
amphibians have a relatively simplified skull in this region; a broad parasphenoid forms the floor of the braincase, the pterygoids are relatively small
Sphenoid_bone
Subclass of amphibians
found in Temnospondyli and Nectridea) Wide cultriform process of the parasphenoid (also found in some Microsauria (Rhynchonkos) and Lysorophia) Presence
Lissamphibia
Extinct genus of temnospondyl
capitosaurs in its short suture between the parasphenoid and pterygoid, its intervening margin of parasphenoid that blocks ventral contact between the pterygoid
Tomeia
Extinct genus of fishes
the posterior (back) portion of the skull, such as the orbit region, parasphenoid, and anteriormost (frontmost) trunk vertebra. Paranogmius is the largest
Paranogmius
Extinct family of dinosaurs
the paroccipital process is rounded and tongue-like in shape parasphenoid: the parasphenoid rostrum is a laterally compressed, thin spike and is lacking
Diplodocidae
Division or infraclass of fishes
both structures have large teeth which are paired with the teeth on the parasphenoid in the roof of the mouth. The clade Otocephala includes the Clupeiformes
Teleost
Extinct genus of reptiles
As it was later obscured by plaster, its true size is unknown. The parasphenoid (a midline bone in the rear part of the palate) is smooth and approximately
Macroplata
Extinct genus of tetrapods
Henrici, Amy C. (22 January 2020). "Anatomy of the neural endocranium, parasphenoid and stapes of Diadectes absitus (Diadectomorpha) from the early Permian
Diadectes
Species of freshwater fish
bones of the mouth, including the jaws, vomer, palatines, pterygoids, parasphenoid, and tongue. Asian arowana scales are large, cycloid, and, in some varieties
Asian_arowana
Extinct family of seabirds
articulation is similar to that of the Galloanseres. At the side of the parasphenoid lamina, there is a wide platform as in Anseriformes. The bony-toothed
Pelagornithidae
Extinct genus of predatory cichlid fish
it had a low supraoccipital crest as well as a straight and massive parasphenoid. Only the lacrimal remains of the infraorbital series, either because
Warilochromis
Extinct genus of lungfish
fossil lungfish described from fragmentary remains including one complete parasphenoid, tooth plates fragments and scales from the Late Devonian Sarcopterygians
Isityumzi
structure with the diapophysis that receives a single-headed rib. parasphenoid The parasphenoid is the only dermal bone of the braincase. It forms part of the
Glossary_of_dinosaur_anatomy
Geologic formation in Morocco
Mawsoniidae Indeterminate Guelb el Ahmar Upper Member Skull bones including a parasphenoid Coelacanth Osteoglossiformes Indeterminate Guelb el Ahmar Upper Member
Anoual_Formation
Family of amphibians
large palatines, as well as the absence of pedicellate teeth or a wide parasphenoid cultriform process. Albanerpetontids are now recognized as a distinct
Albanerpetontidae
Species of fish
There are teeth present on the tongue, the roof of the mouth on the parasphenoid bone and the palatopterygoid arch and along the jaws. The goldeye fish
Goldeye
Extinct order of tetrapods
that made Temnospondyli a clade: a bone at the back of the skull, the parasphenoid, is connected to another bone on the underside of the skull, the pterygoid;
Temnospondyli
Extinct genus of synapsids
teeth along the medial edge of the bone, the presence of teeth on the parasphenoid, and a surangular overlapping the posterodorsal tip of the dentary and
Cotylorhynchus
Extinct genus of amphibians
dentary fangs; and an elongate, tube-like backside extension of the parasphenoid, both hinting to an aquatic hunting lifestyle. Paleontology portal Prehistoric
Erpetosaurus
Extinct genus of fishes
centimetres (20 in). Its known remains included the jaws, palate, operculum, parasphenoid, branchial skeleton, pectoral girdle, pectoral fin, vertebral fragments
Gyrosteus
Extinct genus of amphibians
the palate called the cultriform process, a wide contact between the parasphenoid and basisphenoid bones on the underside of the skull, and uniquely L-shaped
Slaugenhopia
Extinct genus of amphibians
amphibian characteristic at the back of the skull, a widened bone called the parasphenoid basal plate. Many of the features that link Gerobatrachus with modern
Gerobatrachus
Extinct genus of reptiles
These include the sophisticated pattern of ridges on the bottom of the parasphenoid bone on its palate; the narrow openings in the palate bordered by the
Mauriciosaurus
Extinct species of fish
tooth patch with well-developed tooth sockets on a ventral surface of parasphenoid posterior end. Several skull bones were found in the upper Eocene and
Parachanna_fayumensis
Extinct genus of reptiles
fused with the basioccipital, the lower bone of the rear skull. The parasphenoid at the front of the braincase has a long cultriform process. There is
Chaohusaurus
Extinct genus of reptiles
shortened and kidney like, the articulation between the pterygoid and the parasphenoid is fused, the joint between the skull and the lower jaws is anterior
Champsosaurus
Extinct genus of dinosaurs
the post-cranial skeleton. An unusual feature of the braincase is the parasphenoid recess, which has only been described in two other non-avian theropods
Piatnitzkysaurus
Genus of fishes
has a narrow rostral tip has an angle of between 53° and 68° with the parasphenoid, they have a small mouth in which the lower jaw is slightly shorter than
Chindongo
Geologic formation in the United States
parietal, supraoccipital, opisthotic-exoccipital, prootic, laterosphenoid, parasphenoid-basisphenoid, basioccipital, cervical vertebrae, dorsal vertebrae, caudal
Cedar_Mountain_Formation
Extinct genus of reptiles
basisphenoid in the skull was paired and was separated by the parasphenoid. The parasphenoid had a processus cultriformis. The skull of T. platyodon measured
Temnodontosaurus
Extinct genus of cynodonts
are present on each side of the cultriform processes of the parasphenoids. The parasphenoid and basisphenoid are fused, except for the most anterior/dorsal
Thrinaxodon
Extinct genus of amphibians
orientation. Some differences were the parasphenoid and pterygoid sutures were elongated, and the "parasphenoid was broader posteriorly than anteriorly"
Microposaurus
Extinct family of temnospondyls
rear part of the mouth was a rectangular bone known as a parasphenoid. Most of the parasphenoid formed the lower face of the flattened braincase, although
Rhinesuchidae
Extinct subfamily of mammals
distinguished from other gorgonopsians by the absence of a blade-like parasphenoid bone and reduced or absent preparietal bone. The jugal bone, while narrow
Rubidgeinae
Extinct genus of amphibians
determined to a caudatan, based on four apomorphies shared with salamanders: "parasphenoid shape and dorsal surface, with a V-shaped anterior depression, an unpaired
Triassurus
Extinct species of reptile
interpterygoid vacuities, the former of which is particularly large. The parasphenoid (one of the bones in the braincase) runs over the midline of the narrower
Umoonasaurus
Extinct genus of reptiles
similar to the closed palate on nothosaurs. The cultriform process of the parasphenoid divides the pterygoids, extending towards the posterior end of the anterior
Plesiopterys
Extinct genus of temnospondyls
and exoccipital skull bones, and a stapes that articulates with the parasphenoid. Rhineceps fossils are differentiated from other rhinesuchids by the
Rhineceps
Extinct genus of reptiles
Portugal to date. It is based on a single autapomorphy, a broad triangular parasphenoid cultriform process that is as long as the posterior interpterygoid vacuities
Lusonectes
Extinct order of reptiles
reduced number of teeth on the pterygoid, an absence of teeth on the parasphenoid, and a lack of caniniform maxillary teeth, but none of these apply to
Hupehsuchia
Extinct genus of tetrapods
behind the palatines. The rear of the palate possesses a bone known as a parasphenoid, which has acquired an unusually complex dart-like shape. The pterygoids
Westlothiana
Extinct genus of temnospondyls
anteriorly and posteriorly pointed interpterygoid vacuities, lack of parasphenoid groove, lack of occipital sensory canal, posteriorly directed and distally
Cherninia
Genus of amphibians (fossil)
the same level as the palatine tucks. The cultriform process of the parasphenoid in K. vetusta and K. tarda is inserted between the vomers. These animals
Konzhukovia
Extinct genus of amphibians
twice as long as it is wide; (6) triangular patch of denticles on the parasphenoid (shared with other trematopids); and (7) basipterygoid region unsutured
Ecolsonia
Extinct genus of reptiles
posterior point, and not strongly set off from the basal plate of the parasphenoid. This is considered primitive in ichthyosaurs. The basal plate of the
Phantomosaurus
Extinct suborder of amphibians
workers. Defining features include a tight articulation between the parasphenoid and the pterygoid and a stapedial groove. Stereospondyls first definitively
Stereospondyli
Clade of amphibians
the absence of mentomeckelian bones, absence of lateral alae of the parasphenoid, fusion of the frontoparietals into an azygous element, greatly enlarged
Pipoidea
Extinct genus of temnospondyls
interpterygoid vacuities and is elongate. The parasphenoid cultriform process is deep and thin ventrally. The parasphenoid cultriform process is underplated by
Eocyclotosaurus
Extinct family of vertebrate animals
to see the numerous small teeth adorning the bones of the palate (the parasphenoid, triangular in shape in the center, and the very elongated pterygoids
Caseidae
its braincase, including the basal tubera, basipterygoid processes, parasphenoid, and cranial nerve foramina. Differences in the braincases of Vahiny
List of vertebrate fauna of the Maastrichtian stage
List_of_vertebrate_fauna_of_the_Maastrichtian_stage
Extinct genus of synapsids
posterior margin of squamosal that covers posterior margin of quadrate Parasphenoid plate is broad and basisphenoidal tubera are wing like and extend far
Mesenosaurus
Genus of beaked reptile
least two inferred primitively ancestral (i.e. plesiomorphic) traits (no parasphenoid capsule and a smaller brain cavity) compared to Cretaceous ornithomimosaurs
Shuvosaurus
Extinct genus of ankylosaurian dinosaurs
basisphenoid. The posterior pterygoid plate is present anterior to the parasphenoid and is concave as in Edmontonia. A tooth from a maxillary fragment is
Peloroplites
Extinct genus of tetrapod
and mandibles, reduced palatal dentition, larger contact between the parasphenoid and stapes, increased height of quadratojugal bone, and a postparietal
Indosauriscus
Extinct genus of reptiles
left humerus. Specimen BMNH R2739, consisting of a basisphenoid and parasphenoid, cervical vertebrae, sacrals with the sacral ribs, an anterior caudal
Picrocleidus
Extinct genus of tetrapod
the cultriform process missing in all of its external surfaces. The parasphenoid is the largest part of the braincase with some overlap into the basiooccipital
Aerosaurus
Extinct genus of fishes
Brazilichthys is not preserved, bones associated with it such as the parasphenoid are found in the specimen. This bone was long with an inflated anterior
Brazilichthys
Extinct genus of reptiles
their relationships. While they observed the ventral surface of the parasphenoid is flat, similar to millerettids, they concluded that the diapsid skull
Lanthanolania
Genus of leptonectid ichthyosaur from the Early Jurassic period
palate and it had short and wide pterygoid from the ventral view. Its parasphenoid endes anterolateral to the unpaired carotid foramen. The lower jaw of
Eurhinosaurus
Extinct genus of ophthalmosaurid ichthyosaur known from England and Germany
ichthyosaur species. At its front end, the basisphenoid was fused to the parasphenoid (another bone within the lower part of the braincase) and no suture (border
Acamptonectes
Extinct genus of ray-finned fish
rod-shaped ventral process, similar to what is seen in other teleosts. The parasphenoid is visible within orbit and possesses a small branching portion, this
Jinjuichthys
Extinct genus of tetrapods
the dorsal palate that follows the internal margin of the choanae. The parasphenoid bears a thin ventro-medial ridge, a condition also seen in Discosauriscus
Laosuchus
Extinct genus of amphibians
of the palate and a very wide cultriform process at the front of the parasphenoid, a bone on the underside of the skull. They considered Vigilius to be
Vigilius_(amphibian)
Genus of rhamphorhynchid pterosaur from the Late Jurassic
jaws, palate (palatine bone, "pl" + pterygoid, "pt"), and braincase (parasphenoid, "ps" + basipterygoids, "bpt"). Twenty-one small teeth are preserved
Bellubrunnus
Genus of pliosaurid plesiosaur
known as palatines, a configuration used to identify this genus. The parasphenoid (a bone that forms the lower front part of the braincase) bears a long
Peloneustes
probable ecology is published by Schoch et al. (2025). A study on the parasphenoids of Early Triassic trematosauroids and capitosaurs from the European
2025_in_paleontology
Extinct genus of tetrapods
slender, elongated quadratojugals; anterodorsal sloping of the quadrate; parasphenoid dentition; elongate hyoids; plate-like interclavicle heads; and their
Heleosaurus
Extinct genus of reptiles
mediolaterally expanded platform and its cultriform process of the parasphenoid is wider mediolaterally than the combined posterior interpterygoid vacuities
Anningasaura
Extinct genus of amphibians
a few elements (e.g., postorbital) and changes in proportions to the parasphenoid. Ornamentation does not change as drastically as in C. morrisi. The skull
Cacops
Extinct subfamily of amphibians
characteristics or synapomorphies: a palate with a nearly straight back margin, a parasphenoid bone at the back of the palate that is covered in small bumps, an ectopterygoid
Derwentiinae
Extinct genus of reptiles
of the transverse flange, anterior to the large row of teeth. On the parasphenoid plate, two separate paired rows of teeth diverge posteriorly. The lateral-most
Acleistorhinus
Jurassic geologic formation in Germany
Lehmhagen pit, Grimmen Isolated skull roof with articulated ethmoid region, parasphenoid, and partial braincase Member of the family Pholidophoriformes. Resembles
Grimmen_Formation
Extinct genus of dinosaurs
its braincase, including the basal tubera, basipterygoid processes, parasphenoid and cranial nerve foramina. Differences in the braincases of Vahiny and
Vahiny
Extinct genus of dinosaurs
clade" based on the lack of a bulbous capsule-like structure on the parasphenoid of its palate, and the presence of the promaxillary fenestra on its skull
Liaoningvenator
Extinct genus of amphibians
the long parasphenoid-pterygoid contact, the greatly reduced subtemporal vacuities, and the broad cultriform process of the parasphenoid are visible
Laidleria
Extinct genus of synapsids
to see the numerous small teeth adorning the bones of the palate (the parasphenoid, triangular in shape in the center, and the very elongated pterygoids
Euromycter
Extinct species of ray-finned fish
the two genera: tooth shape on the coronoids and vomers, shape of the parasphenoid tooth patch, and total number of preural centra. In Amia the coronoids
Amia?_hesperia
Extinct genus of tetrapodomorphs
the braincase is well preserved, with the exception of the blade-like parasphenoid which extends forwards along the midline of the skull and divides most
Neopteroplax
Extinct family of temnospondyls
contact; (6) a triangular patch of denticles on the basal plate of the parasphenoid; and (7) a humerus with a supinator process. Milner (2018) further refined
Trematopidae
Extinct genus of reptiles
laterosphenoid. The tightly sutured braincase features a vertically expanded parasphenoid that is confluent with the pterygoids and a basisphenoid that is almost
Stolokrosuchus
Extinct genus of reptiles
possesses a fully ossified thin and tall plate-like bone known as a parasphenoid rostrum, which extends forward along the midline of the rear part of
Colobops
Species of amphibian
(51–102 mm) long. The adult has a nasolabial groove, parotoid glands, and parasphenoid teeth. Coloration and markings key to characterizing this species include
Coeur_d'Alene_salamander
Extinct temnospondyl genus
the skull behind the orbit, and several features of the pterygoid and parasphenoid bones. Huangfuchuansuchus exhibits several features that are common to
Huangfuchuansuchus
Extinct genus of amphibians
temnospondyls. The pterygoid bones had a narrow, bulbous contact with the parasphenoid bone (which forms the base of the braincase). While this contact is by
Saharastega
Swedish paleontologist
On the visceral skeleton in Eusthenopteron with a discussion of the parasphenoid and palatoquadrate in fishes. Kungliga Svenska Vetenskapsakademiens Handlingar
Erik_Jarvik
Geologic formation in Argentina
basioccipital, incomplete basipterygoid process, supraoccipital, exoccipital, basisphenoidals tubers, orbitosphenoids, and incomplete parasphenoids. A titanosaur
Portezuelo_Formation
Extinct genus of fishes
fossils in Kitakyushu City. Aokiichthys changae has large teeth on its parasphenoid. It has a comparatively moderate body. Body lengths range from about
Aokiichthys
Extinct genus of amphibians
clear suture between the pterygoid and the basipterygoid process of the parasphenoid (the basicranial joint), an unossified sphenethmoid, long and slender
Phonerpeton
Extinct genus of temnospondyls
choanae, features that are all typical of cochleosaurid as well. The parasphenoid plate of the cranium is wider than it is long in Adamanterpeton, similar
Adamanterpeton
Site in South Africa with a wide range of fossils from high-latitudinal Gondwana
bone. Rhizodontida indet. Isityumzi I. mlomomde Lungfish known from parasphenoid bones. Tutusius T. umlambo Early tetrapod. First known African Devonian
Waterloo_Farm_lagerstätte
PARASPHENOID
PARASPHENOID
PARASPHENOID
PARASPHENOID
Girl/Female
Australian, Hebrew
Devoted to God
Boy/Male
Hindu, Indian
Different
Female
Arthurian
, the "unsympathetic" lover of Pelleas.
Boy/Male
Hindu, Indian
King
Male
Hindi/Indian
(सिकनà¥à¤¦à¤°) Hindi form of Latin Alexandrus, SIKANDAR means "defender of mankind."
Female
Spanish
Portuguese and Spanish form of Hebrew Ribqah, REBECA means "ensnarer."Â
Boy/Male
American, Australian, British, English, French
Dispenser; Form of Spencer; Provisioner
Girl/Female
Anglo Saxon Norse
Name of a goddess.
Surname or Lastname
English
English : variant spelling of Sayers.
Girl/Female
American, Australian, British, Christian, Dutch, English, French, German, Hebrew, Japanese, Slavic
God has been Gracious; The Grace or Mercy of the Lord
PARASPHENOID
PARASPHENOID
PARASPHENOID
PARASPHENOID
PARASPHENOID
a.
Near the sphenoid bone; -- applied especially to a bone situated immediately beneath the sphenoid in the base of the skull in many animals.
n.
The parasphenoid bone.