Results 51 to 60 of about 380,471 (263)

Behavioral implications of an embedded tyrannosaurid tooth and associated tooth marks on an articulated skull of Edmontosaurus from the Hell Creek Formation, Montana [PDF]

PeerJ
Because teeth can be taxonomically distinct, particularly for non-mammalian carnivores such as non-avian dinosaurs, teeth that have broken off in the bone of another animal during feeding, predation or antagonism can provide direct information on ...
Taia C.A. Wyenberg-Henzler, John B. Scannella   +1 more
doaj   +2 more sources

Inverted supernumerary nasal tooth: a case report and literature review

Medica Jadertina, 2023
The eruption of a tooth into the nasal cavity is a rare and incidental finding during routine clinical or radiological examination. Since the 1960s there were more than 60 reported cases of nasal teeth. To the best of our knowledge, this is only the sixth case report of a supernumerary intranasal canine in the selected period.
Ferenc, Thomas, Zovak, Goran, Vidjak, Vinko   +2 more
openaire   +1 more source

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

The Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri, Humberto L. Andrelino, Sergio Bogan, José P. O'Gorman, Federico Agnolín, Brian L. Sidlauskas, Nahuel Vega, Agustín G. Martinelli, José L. Birindelli   +8 more
wiley   +1 more source

Retained tooth in the nasal cavity: a rare cause of nasal congestion

BMJ Case Reports, 2019
A 59-year-old man presented with unilateral nasal congestion and discharge. Clinical examination revealed a mass in the floor of the nasal cavity. Sinus CT indicated a retained tooth or a dermoid cyst. It was removed by endoscopic surgery. Histology confirmed the diagnosis of a retained tooth. At follow-up, the patient reported no nasal symptoms.
Marie Louise Moeller, Jesper Bille, Milos Fuglsang   +2 more
openaire   +4 more sources

Redescription of the Triassic cynodont Cistecynodon parvus and reassessment of its phylogeny

The Anatomical Record, EarlyView.
Abstract Cynodontia is an important subclade of Therapsida that first occurred in the late Permian. It includes extinct subclades which are the non‐mammaliaform cynodonts and Mammaliaformes, with the latter ultimately giving rise to crown mammals. The systematics of non‐mammaliaform cynodonts has been extensively studied and is relatively well‐resolved,
Erin S. Lund, Frederik P. Wolvaardt, Roger M. H. Smith, Jaganmoy Jodder, Julien Benoit   +4 more
wiley   +1 more source

Penatalaksanaan Gigi Kaninus Rahang Atas Impaksi

Journal of Dentistry Indonesia, 2015
Maxillary cuspid is the third most frequently impacted tooth after maxillary and mandibular third molar. There are factors for impacted maxillary cuspids which are minimal eruption of cupids tooth distance to the normal occlusion space in dental arch ...
Evy Eida Vitria
doaj   +1 more source

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

The Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo, Ricardo Araújo, Bruce S. Rubidge, Michael O. Day, Kathleen N. Dollman, Julien Benoit   +5 more
wiley   +1 more source

Efficient all-optical wavelength conversion scheme based on a saw-tooth pulse shaper [PDF]

, 2009
We experimentally demonstrate the use of saw-tooth optical pulses, generated using a superstructured fiber Bragg grating, to achieve high performance and efficient all-optical wavelength conversion in a scheme based on cross-phase modulation in a highly ...
Ibsen, M., Parmigiani, F., Petropoulos, P., Richardson, D.J.   +3 more
core   +1 more source

Ectopic nasal tooth associated with cleft lip and palate

Indian Journal of Dental Sciences, 2021
Ectopic nasal tooth is a rare phenomenon with only 0.1%–1% incidence rate. They are more frequently found coupled with cleft lip and palate. Here, we present a case of intranasal tooth in a 12-year-old male child with operated cleft lip and palate.
Subhransu Basu, Sudipto Sahu, Abhinaba Bose, Sucharu Ghosh   +3 more
doaj   +1 more source

Early stages of tooth development in the harbor porpoise Phocoena phocoena

The Anatomical Record, EarlyView.
Abstract Here we describe the stages of tooth development in toothed whales on the basis of the harbor porpoise (Phocoena phocoena). The aim of the study was to find out whether these stages are identical to those of other mammals analyzed so far although toothed whales are homodont and monophyodont.
Lasse M. Mathes, Lennart Müller‐Thomsen, Stefan Huggenberger   +2 more
wiley   +1 more source