List of marginocephalian type specimens
Marginocephalia is a clade of ornithischian dinosaurs that includes some of the most well-known Mesozoic animals, such as Triceratops and Pachycephalosaurus.
The group is united by, and is named for, the presence of a bony margin formed mostly from the parietal and squamosal bones at the posterior end of the skull.
Additional specimens can only be "referred" to these taxa if an expert deems them sufficiently similar to the type and publishes that opinion in the scientific literature.
Nomina nuda are not included because a type does not become recognized by the ICZN until it is published in a scientific journal with a full description.
However, specimens that are identified as marginocephalians in publications subsequent to their initial description are included under the name they are given within marginocephalia.
[14] This is noted where appropriate, but there is no entry on the list under the name Troodon wyomingensis because the specimen itself is now referred to a taxon within marginocephalia.
The holotype on display in Colorado
Illustration of the holotype material
The holotype on display in Austin
The holotype without the dentary
Holotype skull without the postcranial elements
The holotype in lateral view
The holotype skull from multiple views
The holotype skull from multiple views
The holotype on display in Ontario
A reconstruction of the holotype
in situ
with a hypothetical postcranial skeleton
Cast of the holotype with missing elements filled in for display
Holotype with skull bones labeled
Diagram of the holotype material
Holotype skull mounted on a hypothetical skeleton
Hypothetical restoration of the skeleton with the holotype material in white
Digital reconstruction of the holotype
in situ
Illustration of the holotype
The holotype with missing elements filled in
Illustration of the holotype material
Diagram of the holotype material
The holotype skull on display in New York City
Digital reconstruction of the holotype material
The holotype skull from multiple views
The holotype on display in Alberta
Holotype teeth
The skull, minus the lower jaw, in storage in Utah
The holotype skull mounted
Holotype skull (A
1
)
Diagram of the holotype material
The holotype skull from multiple views
The holotype on display in Tokyo
Diagram of the holotype material
Diagram of the holotype material
The holotype from above with arrows indicating supposed pathologies
The mounted holotype with missing elements
The holotype skeletons
in situ
in Hong Kong
Reconstruction with missing skull elements
A photo and digital model of the holotype
Parietal fragment of the holotype from multiple views
Skeletal reconstruction with the holotype elements on top
The holotype skull from multiple views
Forelimb of the holotype specimen
Diagram of the holotype material
A skeletal reconstruction with the holotype material in orange
Diagram of the holotype material
The snout of the holotype
Mounted cast of the holotype with the missing elements filled in
The illium associated with the holotype
Illustration of the holotype
The holotype on display in New York City
The holotype from multiple views
An illustration of the holotype
The holotype of
M. sphenocerus
labeled with a 2
Mounted skeleton based on the holotype material
The holotype
in situ
along with a digital reconstruction
The holotype material from multiple views with skull bones labeled
The holotype parietal bones
The holotype on display in Washington D.C.
An illustration of the holotype
A reconstruction of the holotype with other referred material
The holotype shown from multiple views
The skull on display in New York City
The holotype shown from multiple views
The holotype skull on display with missing elements reconstructed with plaster
The holotype shown from multiple views
The holotype material shown with multiple interpretations of its nature
Illustration of the holotype skull in lateral view
A photo of the holotype in lateral view
Holotype skull in lateral view
A mounted cast composite modeled after the holotype and other associated specimens
The holotype material with a ruler for scale
The holotype on display in Hohhot
Cast of the holotype in Brussels
The holotype, not including the post-cranial elements, shown from multiple views
The holotype
in situ
on display in New York City
The holotype on a temporary display in Moscow
The holotype on display
in situ
in Zhengzhou
The holotype on display with missing elements filled in
A vertebra from the holotype
Digital reconstruction of the holotype skull viewed from the side
Holotype with frill elements labeled
The bones of the holotype labeled and shown in multiple views
The holotype shown from multiple views
Parietal portion of the holotype
Plaster casts of the holotype alongside digital reconstructions
Skull elements of the holotype laid out individually
The holotype on display mounted on a restored skeleton
The holotype frill with elements labeled
The holotype in a display at the American Museum of Natural History
Diagram of the holotype material
The holotype shown from the front and behind
Skull dome of the holotype shown in multiple views
Diagram of the holotype material
Holotype (top) compared to a putative
Torosaurus
subadult
An illustration of the holotype
An illustration of the holotype
An illustration of the holotype
An illustration of the holotype skull from below, showing the palate
An illustration of the holotype
Hatcher on display in Washington, D.C.
The holotype of
T. prorsus
(top) compared to a specimen nicknamed "Yoshi's Trike"
Illustration of the holotype
Illustration of the jaw portion of the holotype from multiple views
Diagram of the holotype material
Diagram of the holotype material
Labeled holotype elements with a reconstruction of a complete skull below
The holotype on display as it was found
Skull fragments of the holotype, with the postcranial elements omitted
The holotype shown from multiple views with the epiparietals labeled
Holotype shown from multiple views
The skull and jaw elements of the holotype
