Alexander Wilhelm Armin Kellner (born September 26, 1961) is a Brazilian geologist and paleontologist who is a leading expert in the field of studying...

surname include: Ádám Kellner (born 1986), Hungarian tennis player Alex Kellner (1924–1996), baseball pitcher Alexander Kellner (born 1961), Brazilian...

researchers differ in their use of the concept. S. Christopher Bennett and Alexander Kellner have concluded that Nyctosaurus was not a pteranodontid. In 1994 Bennett...

The species T. imperator was given its own genus, Tupandactylus, by Alexander Kellner and Diogenes de Almeida Campos. Unwin and Martill found that T. imperator...

Timeline of pterosaur research Pterosaur size Smallest organisms Wang, X.; Kellner, A. W. A.; Zhou, Z.; de Almeida Campos, D. (12 February 2008). "Discovery...

imperator specimen. Beginning in 2006, several researchers, including Kellner and Campos (who named Tupandactylus), had found that the three species...

Pteranodon. In 2010, pterosaur researcher Alexander Kellner revisited H.W. Miller's classification. Kellner followed Miller's opinion that the differences...

remains of Oxalaia were described in 2011 by Brazilian palaeontologist Alexander Kellner and colleagues, who assigned the specimens to a new genus containing...

except Antarctica. Novialoidea was named by paleontologist Alexander Wilhelm Armin Kellner in 2003 as a node-based taxon consisting of the last common...

rounded front of the fenestra nasoantorbitalis. However, in 1988, Alexander Kellner concluded that Pricesaurus was a nomen vanum, primarily because the...

Santonian stage, about 86 million years ago. In 2010, a paper by Alexander W.A. Kellner argued that this specimen was different enough from G. sternbegi...

consists of a partial mandible. In 2013, Brazilian paleontologist Alexander Kellner referred a third, larger, specimen: MN 6594-1, a skeleton with skull...

Irritator challengeri, was described by the Brazilian paleontologists Alexander W. A. Kellner and Diogenes de Almeida Campos in February 1996. Kept today under...

fish. Kunpengopterus was named and described by Wang Xiaolin, Alexander Wilhelm Armin Kellner, Jiang Shunxing, Cheng Xin, Meng Xi and Taissa Rodrigues in...

within the clade Neoazhdarchia). The genus was named and described by Alexander Kellner and Diógenes de Almeida Campos in 1988. The type species is Tupuxuara...

from Texas was provisionally referred to as a Quetzalcoatlus sp. by Alexander Kellner and Langston in 1996, indicating that its status was too uncertain...

originated in the area. In 2004, Luciano A. Leal, Sergio A. K. Azevodo, Alexander W. A. Kellner, and Átila A. S. da Rosa described Unaysaurus tolentinoi as a new...

encouraged the pursuit of paleontological studies, particularly of Alexander Kellner. Thus far, the remains of Pycnonemosaurus have been fragmentary. No...

"pycnofiber", meaning "dense filament", was coined by palaeontologist Alexander Kellner and colleagues in 2009. Pycnofibers were unique structures similar...

Garcia, M. S.; Agnolín, F. L.; Stocker, M. R.; Novas, F. E.; Soares, M. B.; Kellner, A. W. A.; Nesbitt, S. J. (2023). "New reptile shows dinosaurs and pterosaurs...

later in 2013, Rodrigues & Kellner agreed with this synonymy. In 2013, paleontologists Taissa Rodrigues and Alexander Kellner made an extensive review of...

the holotype specimen of Thalassodromeus sethi by palaeontologists Alexander Kellner and Diogenes de Almeida Campos. The generic name means "sea runner"...

olcadesorum was named and described by Romain Vullo, Jesús Marugán-Lobón, Alexander Kellner, Angela Buscalioni, Bernard Gomez, Montserrat de la Fuente and José...

their dinosauromorph precursors. 2016 in paleontology Cabreira, S.F.; Kellner, A.W.A.; Dias-da-Silva, S.; da Silva, L.R.; Bronzati, M.; de Almeida Marsola...

million years ago. The type species is S. placidus, first described by Kellner in 1999. The species epithet refers to Placido Cidade Nuvens [pt], who...

Aymberedactylus as the most basal tapejarine. Pêgas, R.V.; Leal, M.E.d.; Kellner, A.W.A. (2016). "A Basal Tapejarine (Pterosauria; Pterodactyloidea; Tapejaridae)...

species Caiuajara dobruskii was named and described by Paulo Manzig, Alexander Kellner, Luiz Weinschütz, Carlos Fragoso, Cristina Vega, Gilson Guimarães...

1964), politician and the current Prime Minister of Liechtenstein Alexander Kellner (born 1961), Brazilian geologist and paleontologist, expert in pterosaurs...

Anhangueridae and the Ornithocheiridae, following the opinion of Alexander Kellner and Andres that these families should not be synonymized based on...

tail. The genus was described and named in 2009 by Wang Xiaolin, Alexander Kellner, Jiang Shunxing and Meng Xi. The genus name is derived from Sun Wukong...