OPINION 2269 (Case 3487) Megalosaurus crenatissimus Depéret, 1896 (currently Majungasaurus crenatissimus; Dinosauria, Theropoda): designation of a neotype

Scott D. Sampson; ICZN; Daniel J. Chure; Michael P. Taylor

Dinosauria

Case 3487 Megalosaurus crenatissimus Depéret, 1896 (currently Majungasaurus crenatissimus; Dinosauria, Theropoda): proposed replacement of the holotype by a neotype

M. T. Carrano, D. W. Krause, P. M. O'Connor, and S. D. Sampson, “Case 3487 Megalosaurus crenatissimus Depéret, 1896 (currently Majungasaurus crenatissimus; Dinosauria, Theropoda): proposed replacement of the holotype by a neotype ”, Bulletin of Zoological Nomenclature, vol. 66, no. 3, pp. 261-264, 2009.

Cetiosaurus Owen, 1841 (Dinosauria, Sauropoda): proposed conservation of usage by designation of Cetiosaurus oxoniensis Phillips, 1871 as the type species

P. Upchurch, J. Martin, and M. P. Taylor, “Cetiosaurus Owen, 1841 (Dinosauria, Sauropoda): proposed conservation of usage by designation of Cetiosaurus oxoniensis Phillips, 1871 as the type species ”, Bulletin of Zoological Nonclamenture, vol. 66, no. 1, pp. 51-55, 2009.

Comment on the proposed conservation of usage of Cetiosaurus Owen, 1841 by designation of Cetiosaurus oxoniensis Phillips, 1871 as the type species 1

P. M. Barrett, “Comment on the proposed conservation of usage of Cetiosaurus Owen, 1841 by designation of Cetiosaurus oxoniensis Phillips, 1871 as the type species 1”, Bulletin of Zoological Nomenclature, vol. 66, no. 2, pp. 187-188, 2009.

I write in support of Upchurch et al.’s proposal to establish Cetiosaurus oxoniensis Phillips, 1871 as the type species of Cetiosaurus Owen, 1841 and to set aside all previous fixations of type species for this genus. Cetiosaurus was
the first sauropod dinosaur to be scientifically described (Owen, 1841)
and one of the earliest dinosaurs to be recognised: the taxon is
clearly of historical importance and stabilising its taxonomy would
represent an important contribution to dinosaur studies. The name has

Comment on the proposed conservation of usage of Cetiosaurus Owen, 1841 by designation of Cetiosaurus oxoniensis Phillips, 1871 as the type species 2

P. M. Galton, “Comment on the proposed conservation of usage of Cetiosaurus Owen, 1841 by designation of Cetiosaurus oxoniensis Phillips, 1871 as the type species 2”, Bulletin of Zoological Nomenclature, vol. 66, no. 2, p. 188, 2009.

I strongly support the proposal by Upchurch et al. (BZN 66(1): 51–55) for the conservation of usage by designating Cetiosaurus oxoniensis Phillips, 1871 as the type species of Cetiosaurus Owen, 1841. As extensively referenced in the proposal, the name Cetiosaurus has invariably been associated with the species C. oxoniensis,
and specifically the Bletchington Station material, for almost 125
years. In particular, it should be noted that the ‘Monograph of the

Comment on the proposed precedence of Procynosuchus Broom, 1937 (Therapsida, Cynodontia) over Cyrbasiodon Broom, 1931 and Parathrinaxodon Parrington, 1936

C. A. Sidor, “Comment on the proposed precedence of Procynosuchus Broom, 1937 (Therapsida, Cynodontia) over Cyrbasiodon Broom, 1931 and Parathrinaxodon Parrington, 1936”, Bulletin of Zoological Nomenclature, vol. 66, no. 2, p. 188, 2009.

I am writing to strongly endorse the application to give precedence to Procynosuchus over Cyrbasiodon and Parathrinaxodon. As Kammerer and Abdala note, the name Procynosuchus is
widely used and a very important name to conserve because of its
significance in evolutionary studies and museum exhibits. The authors
have amply documented the preponderance of its usage and strong support
within the specialist community.

Allosaurus Marsh, 1877 (Dinosauria, Theropoda): proposed conservation of usage by designation of a neotype for its type species Allosaurus fragilis Marsh, 1877

G. S. Paul and K. Carpenter, “Allosaurus Marsh, 1877 (Dinosauria, Theropoda): proposed conservation of usage by designation of a neotype for its type species Allosaurus fragilis Marsh, 1877”, Bulletin of Zoological Nomenclature, vol. 67, no. 1, pp. 53-56, 2010.

Comment on the proposed conservation of usage of Allosaurus Marsh, 1877 (Dinosauria, Theropoda) by designation of a neotype for its type species Allosaurus fragilis Marsh, 1877

J. I. Kirkland, “Comment on the proposed conservation of usage of Allosaurus Marsh, 1877 (Dinosauria, Theropoda) by designation of a neotype for its type species Allosaurus fragilis Marsh, 1877”, Bulletin of Zoological Nomenclature, vol. 67, no. 2, pp. 178-178, 2010.

As the state paleontologist of Utah, I heartily support the proposal to make USNM4734 the neotype of Allosaurus. Allosaurus has been the Official State Fossil of Utahfor many years based primarily on the 54+ specimens of Allosaurus fragilis from ourCleveland/Lloyd Quarry (a national historic landmark) with many skeletons exhibitedacross the globe. No large theropod dinosaur is as well documented as Allosaurusand to risk losing this name would only serve to confuse and complicate our scienceamong the people of the world.

Comment on the proposed conservation of usage of Allosaurus Marsh, 1877 (Dinosauria, Theropoda) by designation of a neotype for its type species Allosaurus fragilis Marsh, 1877

V. Demirjian, “Comment on the proposed conservation of usage of Allosaurus Marsh, 1877 (Dinosauria, Theropoda) by designation of a neotype for its type species Allosaurus fragilis Marsh, 1877 ”, Bulletin of Zoological Nomenclature, vol. 67, no. 4, p. 332, 2010.

Here are several points of Case 3506 that need clarification:1. Hypsirophus discurus Cope, 1878 (mis-spelled as Hypsirophis discursis in BZN67: 54) is a stegosaur and not an allosaur (Maidment et al., 2008). The type specimen,AMNH 5731, actually consists of a dorsal vertebra, two caudal neural arches, andtwo caudal centra (Galton, 2010).2.

Comment on the proposed conservation of usage of Allosaurus Marsh, 1877 (Dinosauria, Theropoda) by designation of a neotype for its type species Allosaurus fragilis Marsh, 1877

M. A. Loewen and D. J. Chure, “Comment on the proposed conservation of usage of Allosaurus Marsh, 1877 (Dinosauria, Theropoda) by designation of a neotype for its type species Allosaurus fragilis Marsh, 1877 ”, Bulletin of Zoological Nomenclature, vol. 67, no. 3, pp. 255-256, 2010.

e are writing to support the petition (Case 3506) of Paul & Carpenter to conserve usage of Allosaurus fragilis Marsh, 1877 as the type species for genus Allosaurus by designating USNM 4734 as the neotype for Allosaurus fragilis Marsh, 1877. We support this conservation because of the taxon’s widely accepted usage by palaeontologists and its entrenched familiarity among the general public.