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Taxon: Genus †Chasmosaurus Lambe, 1914 (dinosaur)
 Entity: 

Authorship

SN2000 author citation:  L.M. Lambe, 1914, nom. nov.
Subsequent name (orig. rank & spell.):  Lambe, L.M. 1914. Ottawa Natural. 27 (11), Feb 1914: 155 (note: "new name"). ≡

Attributes

New replacement name (: nom. nov.) [ICZN] Ref: S.A. Neave (ed.), [2005]. Nomencl. Zool.: [19 Dec 2008] ("n.n.").

Synonyms

Replaced synonym: †Protorosaurus (Genus) Lambe, 1914, nom. illeg. Ref: S.A. Neave (ed.), [2005]: [19 Dec 2008].
Questionably Senior subjective synonym: †Ceratops (Genus) Marsh, 1888, nom. dub. Ref: G. Olshevsky, 1991: 163 ("?").
Questionably Junior subjective synonym: †Eoceratops (Genus) Lambe, 1915 Ref: G. Olshevsky, 1991: 163 ("?").
Synonymous name: †Eoceratops (Genus) Lambe, 1915 Ref: PBDB: 7 Sep 2021.
Synonymous name: †Mojoceratops (Genus) Longrich, 2010 Ref: PBDB: 2 Sep 2021.
Synonymous name (objective): †Protorosaurus (Genus) Lambe, 1914, nom. illeg. Ref: G. Olshevsky, 1991: 163; PBDB(27 Jan 2021).

States (relationship)

Questionably Juvenile: †Eoceratops (Genus) Lambe, 1915 Ref: G. Olshevsky, 1991: 163 ("?").
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Last updated: 28 Aug 2026