Clade | |
Subclade |
Taxon | |
Taxon |
Leptoceratopsidae
|
Nominal Author | Nopcsa 1923 |
2nd Nominal Author | Makovicky 2001 |
Taxon Status | ACTIVE |
Comments | Makovicky (2001) was first to recognize Leptoceratopsidae, using Nopcsa’s (1923) family group (originally Leptoceratopsinae). With several new genera and significant supporting character evidence (Makovicky 2001, Chinnery 2004), Leptoceratopsidae now circumscribes a small clade distributed across central Asia and western North America. The active definition is a textual variant of that used by Makovicky (2001). |
Potential Synonomy |
Active Phylogenetic Definition | |
Active Definition |
The most inclusive clade containing Leptoceratops gracilis Brown 1914 but not Triceratops horridus Marsh 1889.
|
Shorthand |
> Leptoceratops gracilis but not Triceratops horridus. |
Definitional Author |
Makovicky 2001 |
Definition Status | ORIGINAL |
Definition Type | STEM |
Node-Stem Triplet | NO |
Other Triplet Taxa | |
Specifiers | |
Specifier(s) A |
Leptoceratops gracilis |
Specifier(s) B | |
Specifier(s) C |
Triceratops horridus
|
Qualifiers | |
+Taxon | |
-Taxon | |
Datum | |
Taxonomic Content | |
Publication Year |
Unknown Unknown Unknown 2001 |
Inactive Taxon Status | |
Rejection Criteria | |
Critique | . |
Definitional History #1 | |
Earliest Record | All taxa closer to Leptoceratops gracilis than to Triceratops horridus. |
Latest Record | Makovicky 2001:254 |
Range (My) | |
Range (My) |
Leptoceratops gracilis, Triceratops horridus |
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