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Ponerosteus

Ponerosteus is a dubious genus of extinct archosauromorph from the Late Cretaceous (Cenomanian-aged) Korycanar Formation of the Czech Republic that was initially identified as a species of the dinosaur Iguanodon.[1]

Ponerosteus
Temporal range: Upper Cretaceous, Cenomanian
Holotype tibia of P. exogyrarum (National Museum in Prague)
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Genus: Ponerosteus
Olshevsky, 2000
Species:
P. exogyrarum
Binomial name
Ponerosteus exogyrarum
(Fritsch, 1878)
Synonyms
  • Iguanodon exogirarum Fritsch, 1878
  • Iguanodon exogyrarum (Fritsch, 1878) vide Chure & McIntosh, 1989
  • Iguanodon exogirarus Brinkmann, 1988
  • Procerosaurus Fritch, 1905 (preocccupied)
  • Procerosaurus exogirarum Brinkmann, 1988
  • Procerosaurus exogirarus Brinkmann, 1988

The type, and currently only, species is P. exogyrarum.[2]

Discovery and naming Edit

The holotype, NAMU Ob 40, consisting solely of an internal cast of a tibia, was discovered near Holubice, Kralupy nad Vltavou, and was first identified as a dinosaur, which was named "Iguanodon exogirarum" (later "Iguanodon exogyrarum") by Antonín Frič in 1878.[1][3] He later (1905) renamed it Procerosaurus,[4] unaware that this name was already in use (von Huene, 1902[5]) for what is now a synonym of Tanystropheus. NAMU Ob 40 was renamed Ponerosteus exogyrarum (species name amended) by George Olshevsky in 2000, and Olshevsky considered Ponerosteus to be a nomen dubium;[2] the holotype has since been put on display at the National Museum in Prague.[2]

The name Ponerosteus can be translated as "bad", "worthless", or "useless bone", which describes the fragmentary nature of the holotype.[6]

Classification Edit

Although initially identified as being a dinosaur belonging to the genus Iguanodon,[1] Ponerosteus is currently classified within Archosauromorpha.[2]

References Edit

  1. ^ a b c Fritsch, A. (1878). Die Reptilien und Fische der Böhmischen Kreideformation. Selbstverlag, Prague, 46 pp.
  2. ^ a b c d G. Olshevsky. (2000). An annotated checklist of dinosaur species by continent. Mesozoic Meanderings 3:1-157
  3. ^ https://dinosaurusblog.com/2015/07/28/druhohorni-plazi-v-cechach-iv/ Article about Ponerosteus find (in Czech)
  4. ^ Fritsch, A., (1905). "Synopsis der Saurier der böhm. Kreideformation" [Synopsis of the saurians of the Bohemian Cretaceous formation]. Sitzungsberichte der königlich-böhmischen Gesellschaft der Wissenschaften, II Classe. 1905(8), 1–7.
  5. ^ Huene F. v., (1902). Übersicht über die Reptilien der Trias [Review of the Reptilia of the Triassic]. Geologische und Paläontologische Abhandlungen. 6, 1-84.
  6. ^ George Olshevsky expands on the history of the taxon, on the Dinosaur Mailing List


ponerosteus, dubious, genus, extinct, archosauromorph, from, late, cretaceous, cenomanian, aged, korycanar, formation, czech, republic, that, initially, identified, species, dinosaur, iguanodon, temporal, range, upper, cretaceous, cenomanian, preꞒ, nholotype, . Ponerosteus is a dubious genus of extinct archosauromorph from the Late Cretaceous Cenomanian aged Korycanar Formation of the Czech Republic that was initially identified as a species of the dinosaur Iguanodon 1 PonerosteusTemporal range Upper Cretaceous Cenomanian PreꞒ Ꞓ O S D C P T J K Pg NHolotype tibia of P exogyrarum National Museum in Prague Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass ReptiliaGenus PonerosteusOlshevsky 2000Species P exogyrarumBinomial name Ponerosteus exogyrarum Fritsch 1878 SynonymsIguanodon exogirarum Fritsch 1878 Iguanodon exogyrarum Fritsch 1878 vide Chure amp McIntosh 1989 Iguanodon exogirarus Brinkmann 1988 Procerosaurus Fritch 1905 preocccupied Procerosaurus exogirarum Brinkmann 1988 Procerosaurus exogirarus Brinkmann 1988The type and currently only species is P exogyrarum 2 Discovery and naming EditThe holotype NAMU Ob 40 consisting solely of an internal cast of a tibia was discovered near Holubice Kralupy nad Vltavou and was first identified as a dinosaur which was named Iguanodon exogirarum later Iguanodon exogyrarum by Antonin Fric in 1878 1 3 He later 1905 renamed it Procerosaurus 4 unaware that this name was already in use von Huene 1902 5 for what is now a synonym of Tanystropheus NAMU Ob 40 was renamed Ponerosteus exogyrarum species name amended by George Olshevsky in 2000 and Olshevsky considered Ponerosteus to be a nomen dubium 2 the holotype has since been put on display at the National Museum in Prague 2 The name Ponerosteus can be translated as bad worthless or useless bone which describes the fragmentary nature of the holotype 6 Classification EditAlthough initially identified as being a dinosaur belonging to the genus Iguanodon 1 Ponerosteus is currently classified within Archosauromorpha 2 References Edit a b c Fritsch A 1878 Die Reptilien und Fische der Bohmischen Kreideformation Selbstverlag Prague 46 pp a b c d G Olshevsky 2000 An annotated checklist of dinosaur species by continent Mesozoic Meanderings 3 1 157 https dinosaurusblog com 2015 07 28 druhohorni plazi v cechach iv Article about Ponerosteus find in Czech Fritsch A 1905 Synopsis der Saurier der bohm Kreideformation Synopsis of the saurians of the Bohemian Cretaceous formation Sitzungsberichte der koniglich bohmischen Gesellschaft der Wissenschaften II Classe 1905 8 1 7 Huene F v 1902 Ubersicht uber die Reptilien der Trias Review of the Reptilia of the Triassic Geologische und Palaontologische Abhandlungen 6 1 84 George Olshevsky expands on the history of the taxon on the Dinosaur Mailing List nbsp Prehistoric life portal nbsp This article about a prehistoric archosaur is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Ponerosteus amp oldid 1164518286, wikipedia, wiki, book, books, library,

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