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A second specimen of Citipati osmolskae associated with a nest of eggs from Ukhaa Tolgod, Omnogov Aimag, Mongolia
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Title

A second specimen of Citipati osmolskae associated with a nest of eggs from Ukhaa Tolgod, Omnogov Aimag, Mongolia

Related Titles

Series: American Museum novitates, number 3899

By








Genre

Book

Material Type

Published material

Publication info

[New York, NY] :American Museum of Natural History,[2018]

Subjects

Citipati osmolskae , Cretaceous , Dinosaurs , Eggs , Mongolia , Nests , Omnogov Aimag , Paleontology , Reptiles, Fossil , Ukhaa Tolgod

DOI

https://doi.org/10.1206/3899.1

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Title

A second specimen of Citipati osmolskae associated with a nest of eggs from Ukhaa Tolgod, Omnogov Aimag, Mongolia

Related Titles

Series: American Museum novitates, number 3899

By

Norell, Mark. , author

Balanoff, Amy M. , author
Barta, Daniel E. , author
Erickson, Gregory M. , author
Mongolian-American Museum Paleontological Project.
Mongolyn Shinzhlėkh Ukhaany Akademi.

Genre

Book

Material Type

Published material

Publication info

[New York, NY] :American Museum of Natural History,[2018]

Notes:

Caption title.

"April 26, 2018."

Specimen discovered during the 1995 installment of the American Museum of Natural History-Mongolian Academy of Sciences Paleontological Expedition.

Supplemental material available online in a separate file.

Local PDF available in high- and low-resolution versions.

Adult dinosaurs preserved attending their nests in brooding positions are among the rarest vertebrate fossils. By far the most common occurrences are members of the dinosaur group Oviraptorosauria. The first finds of these were specimens recovered from the Djadokhta Formation at the Mongolian locality of Ukhaa Tolgod and the Chinese locality of Bayan Mandahu. Since the initial discovery of these specimens, a few more occurrences of nesting oviraptors have been found at other Asian localities. Here we report on a second nesting oviraptorid specimen (IGM 100/1004) sitting in a brooding position atop a nest of eggs from Ukhaa Tolgod, Omnogov, Mongolia. This is a large specimen of the ubiquitous Ukhaa Tolgod taxon Citipati osmolskae. It is approximately 11% larger based on humeral length than the original Ukhaa Tolgod nesting Citipati osmolskae specimen (IGM 100/979), yet eggshell structure and egg arrangement are identical. No evidence for colonial breeding of these animals has been recovered. Reexamination of another "nesting" oviraptorosaur, the holotype of Oviraptor philoceratops (AMNH FARB 6517) indicates that in addition to the numerous partial eggs associated with the original skeleton that originally led to its referral as a protoceratopsian predator, there are the remains of a tiny theropod. This hind limb can be provisionally assigned to Oviraptoridae. It is thus at least possible that some of the eggs associated with the holotype had hatched and the perinates had not left the nest.

Subjects

Citipati osmolskae , Cretaceous , Dinosaurs , Eggs , Mongolia , Nests , Omnogov Aimag , Paleontology , Reptiles, Fossil , Ukhaa Tolgod

Call Number

QL1 .A436 no.3899 2018

Language

English

Identifiers:

OCLC: 1032397964

DOI

https://doi.org/10.1206/3899.1

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<note>Adult dinosaurs preserved attending their nests in brooding positions are among the rarest vertebrate fossils. By far the most common occurrences are members of the dinosaur group Oviraptorosauria. The first finds of these were specimens recovered from the Djadokhta Formation at the Mongolian locality of Ukhaa Tolgod and the Chinese locality of Bayan Mandahu. Since the initial discovery of these specimens, a few more occurrences of nesting oviraptors have been found at other Asian localities. Here we report on a second nesting oviraptorid specimen (IGM 100/1004) sitting in a brooding position atop a nest of eggs from Ukhaa Tolgod, Omnogov, Mongolia. This is a large specimen of the ubiquitous Ukhaa Tolgod taxon Citipati osmolskae. It is approximately 11% larger based on humeral length than the original Ukhaa Tolgod nesting Citipati osmolskae specimen (IGM 100/979), yet eggshell structure and egg arrangement are identical. No evidence for colonial breeding of these animals has been recovered. Reexamination of another &quot;nesting&quot; oviraptorosaur, the holotype of Oviraptor philoceratops (AMNH FARB 6517) indicates that in addition to the numerous partial eggs associated with the original skeleton that originally led to its referral as a protoceratopsian predator, there are the remains of a tiny theropod. This hind limb can be provisionally assigned to Oviraptoridae. It is thus at least possible that some of the eggs associated with the holotype had hatched and the perinates had not left the nest.</note>
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Download BibTeX citations

@book{bhl262850,
title = {A second specimen of Citipati osmolskae associated with a nest of eggs from Ukhaa Tolgod, Omnogov Aimag, Mongolia },
volume = {no. 3899},
copyright = {In copyright. Digitized with the permission of the rights holder.},
url = {https://www.biodiversitylibrary.org/item/262850},
note = {https://www.biodiversitylibrary.org/bibliography/156722 --- Caption title. --- "April 26, 2018." --- Specimen discovered during the 1995 installment of the American Museum of Natural History-Mongolian Academy of Sciences Paleontological Expedition. --- Supplemental material available online in a separate file. --- Local PDF available in high- and low-resolution versions. --- Adult dinosaurs preserved attending their nests in brooding positions are among the rarest vertebrate fossils. By far the most common occurrences are members of the dinosaur group Oviraptorosauria. The first finds of these were specimens recovered from the Djadokhta Formation at the Mongolian locality of Ukhaa Tolgod and the Chinese locality of Bayan Mandahu. Since the initial discovery of these specimens, a few more occurrences of nesting oviraptors have been found at other Asian localities. Here we report on a second nesting oviraptorid specimen (IGM 100/1004) sitting in a brooding position atop a nest of eggs from Ukhaa Tolgod, Omnogov, Mongolia. This is a large specimen of the ubiquitous Ukhaa Tolgod taxon Citipati osmolskae. It is approximately 11% larger based on humeral length than the original Ukhaa Tolgod nesting Citipati osmolskae specimen (IGM 100/979), yet eggshell structure and egg arrangement are identical. No evidence for colonial breeding of these animals has been recovered. Reexamination of another "nesting" oviraptorosaur, the holotype of Oviraptor philoceratops (AMNH FARB 6517) indicates that in addition to the numerous partial eggs associated with the original skeleton that originally led to its referral as a protoceratopsian predator, there are the remains of a tiny theropod. This hind limb can be provisionally assigned to Oviraptoridae. It is thus at least possible that some of the eggs associated with the holotype had hatched and the perinates had not left the nest.},
publisher = {[New York, NY] :American Museum of Natural History,},
author = {Norell, Mark. and Balanoff, Amy M. and Barta, Daniel E. and Erickson, Gregory M. and Mongolian-American Museum Paleontological Project. and Mongolyn Shinzhlėkh Ukhaany Akademi.},
year = {2018},
pages = {44},
keywords = {Citipati osmolskae|Cretaceous|Dinosaurs|Eggs|Mongolia|Nests|Omnogov Aimag|Paleontology|Reptiles, Fossil|Ukhaa Tolgod},
}

Download RIS citations

TY - BOOK
TI - A second specimen of Citipati osmolskae associated with a nest of eggs from Ukhaa Tolgod, Omnogov Aimag, Mongolia
VL - no. 3899
UR - https://www.biodiversitylibrary.org/item/262850
PB - American Museum of Natural History,
CY - [New York, NY] :
PY - 2018
N1 - Caption title. --- "April 26, 2018." --- Specimen discovered during the 1995 installment of the American Museum of Natural History-Mongolian Academy of Sciences Paleontological Expedition. --- Supplemental material available online in a separate file. --- Local PDF available in high- and low-resolution versions. --- Adult dinosaurs preserved attending their nests in brooding positions are among the rarest vertebrate fossils. By far the most common occurrences are members of the dinosaur group Oviraptorosauria. The first finds of these were specimens recovered from the Djadokhta Formation at the Mongolian locality of Ukhaa Tolgod and the Chinese locality of Bayan Mandahu. Since the initial discovery of these specimens, a few more occurrences of nesting oviraptors have been found at other Asian localities. Here we report on a second nesting oviraptorid specimen (IGM 100/1004) sitting in a brooding position atop a nest of eggs from Ukhaa Tolgod, Omnogov, Mongolia. This is a large specimen of the ubiquitous Ukhaa Tolgod taxon Citipati osmolskae. It is approximately 11% larger based on humeral length than the original Ukhaa Tolgod nesting Citipati osmolskae specimen (IGM 100/979), yet eggshell structure and egg arrangement are identical. No evidence for colonial breeding of these animals has been recovered. Reexamination of another "nesting" oviraptorosaur, the holotype of Oviraptor philoceratops (AMNH FARB 6517) indicates that in addition to the numerous partial eggs associated with the original skeleton that originally led to its referral as a protoceratopsian predator, there are the remains of a tiny theropod. This hind limb can be provisionally assigned to Oviraptoridae. It is thus at least possible that some of the eggs associated with the holotype had hatched and the perinates had not left the nest.
AU - Norell, Mark.
AU - Balanoff, Amy M.
AU - Barta, Daniel E.
AU - Erickson, Gregory M.
AU - Mongolian-American Museum Paleontological Project.
AU - Mongolyn Shinzhlėkh Ukhaany Akademi.
KW - Citipati osmolskae
KW - Cretaceous
KW - Dinosaurs
KW - Eggs
KW - Mongolia
KW - Nests
KW - Omnogov Aimag
KW - Paleontology
KW - Reptiles, Fossil
KW - Ukhaa Tolgod
ER -