Dental crown morphological variation and heterodonty in carcharhiniform sharks. [PDF]
Anat Rec (Hoboken)Abstract Elasmobranch teeth are highly mineralized structures that constitute the majority of the fossil record for this group. Despite their taxonomic and evolutionary significance, detailed descriptions of dental morphology remain scarce. The order Carcharhiniformes, the most diverse among sharks, comprises 304 valid species that display remarkable ...
Zanini F, Soares KDA.
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Exceptionally rapid tooth development and ontogenetic changes in the feeding apparatus of the Komodo dragon. [PDF]
PLoS ONEDental developmental and replacement patterns in extinct amniotes have attracted a lot of attention. Notable among these are Paleozoic predatory synapsids, but also Mesozoic theropod dinosaurs, well known for having true ziphodonty, strongly serrated ...
Tea Maho, Robert R Reisz
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A small venomous reptile from the Late Triassic (Norian) of the southwestern United States [PDF]
PeerJReptile feeding strategies encompass a wide variety of diets and accompanying diversity in methods for subduing prey. One such strategy, the use of venom for prey capture, is found in living reptile clades like helodermatid (beaded) lizards and some ...
Helen E. Burch +6 more
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A bristle-nosed Jurassic ray-finned fish (Actinopterygii) bears true dermal odontodes on its snout. [PDF]
J AnatTeeth show extreme diversity, including tooth‐like dermal odontodes or “skin teeth” in many extant fishes. We describe the anatomy of enlarged tubercles on the snout of Redfieldius, an extinct early Jurassic fish. We found that the tubercles in Redfieldius are dermal odontodes that evolved independently from those of living species. Abstract Comparison
Stack J, Kligman BT, Stricklin ML.
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Otodus-bitten sperm whale tooth from the Neogene of the Coastal Eastern United States [PDF]
Acta Palaeontologica Polonica, 2021 A description and analysis is given of a single physeteroid tooth, from the Neogene of the Nutrien Aurora Phosphate Mine (formerly known as the Lee Creek Mine, Aurora, North Carolina, USA), that was bitten either by the extinct megatoothed shark Otodus ...
Stephen J. Godfrey +2 more
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Comparison of Tensile Bond Strength Between Fissure Sealants Placed After Rubber Cup Polishing and Air Polishing of Enamel Surface (An in vitro study) [PDF]
Al-Rafidain Dental Journal, 2021 Aims: The purpose of this study is to compare the tensile bond strength between fissure sealants placed after rubber cup pumice polishing and air polishing of the enamel surface.
Ibrahim B Badran, Saher S Gasgoos
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Observations on heterodonty within the dentition of the Atlantic Sharpnose Shark, Rhizoprionodon terraenovae (Richardson, 1836), from the north-central Gulf of Mexico, USA, with implications on the fossil record [PDF]
PeerJ, 2023 The Atlantic Sharpnose Shark, Rhizoprionodon terraenovae (Richardson, 1836), is the most common small coastal requiem shark in the north-central Gulf of Mexico, USA. Despite this fact, little is known about the dental variation within this taxon. To help
Jun A. Ebersole +4 more
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A histological investigation of dental crown characters used in mosasaur phylogenetic analyses
Vertebrate Anatomy, Morphology, Palaeontology, 2021 Mosasaur researchers have used varieties of tooth crown ornamentation as diagnostic and phylogenetic characters for decades. Such tooth crown features include facets, flutes, striations, serrated carinae, and coarse anastomosing texture.
Hallie Street +2 more
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Oral manifestations in child patient with Ellis-van Creveld syndrome: case report
Revista de Odontopediatria Latinoamericana, 2023 Ellis–van Creveld syndrome is an autosomal recessive disorder characterized by a tetrad of disproportionate dwarfism, ectodermal dysplasia, postaxial polydactyly, and congenital heart malformations.
Lucas Fernando Oliveira Tomáz Ferraresso +5 more
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An enigmatic crocodyliform tooth from the bauxites of western Hungary suggests hidden mesoeucrocodylian diversity in the Early Cretaceous European archipelago [PDF]
PeerJ, 2015 Background. The Cretaceous of southern Europe was characterized by an archipelago setting with faunas of mixed composition of endemic, Laurasian and Gondwanan elements. However, little is known about the relative timing of these faunal influences.
Attila Ősi +2 more
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