Reference health
A redescription of<i>Chaoyangia beishanensis</i>(Aves) and a comprehensive phylogeny of Mesozoic birds
38/38 checkable references clean · checked 2026-07-14
Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a publisher retraction, withdrawal, or removal notice.
36 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.
The 38 checked references that resolve
resolves10.1016/j.cretres.2009.09.001
Description and ecologic analysis of Hollanda luceria, a Late Cretaceous bird from the Gobi Desert (Mongolia)
resolves10.1080/02724634.1994.10011554
<i>Neuquenornis volans</i>, a new Late Cretaceous bird (Enantiornithes: Avisauridae) from Patagonia, Argentina
resolves10.1206/0003-0090(2004)286<0001:MPTASO>2.0.CO;2
MORPHOLOGY, PHYLOGENETIC TAXONOMY, AND SYSTEMATICS OF ICHTHYORNIS AND APATORNIS (AVIALAE: ORNITHURAE)
resolves10.1111/j.1469-7580.2006.00534.x
Insight into the evolution of avian flight from a new clade of Early Cretaceous ornithurines from China and the morphology of <i>Yixianornis grabaui</i>
resolves10.1111/j.1475-4983.2008.00793.x
A NEW BASAL LINEAGE OF EARLY CRETACEOUS BIRDS FROM CHINA AND ITS IMPLICATIONS ON THE EVOLUTION OF THE AVIAN TAIL
resolves10.1029/2004GL020792
<sup>40</sup>Ar/<sup>39</sup>Ar dating of ignimbrite from Inner Mongolia, northeastern China, indicates a post‐Middle Jurassic age for the overlying Daohugou Bed
resolves10.1126/science.274.5290.1164
Early Adaptive Radiation of Birds: Evidence from Fossils from Northeastern China
resolves10.1126/science.1120331
A Well-Preserved
<i>Archaeopteryx</i>
Specimen with Theropod Features
resolves10.1080/02724634.2009.10010371
Phylogenetic support for a specialized clade of Cretaceous enantiornithine birds with information from a new species
resolves10.1080/02724631003617498
A new ornithuromorph (Aves: Ornithothoraces) bird from the Jehol Group indicative of higher-level diversity
resolves10.1080/02724634.2010.483544
A Late Cretaceous (Maastrichtian) avifauna from the Maevarano Formation, Madagascar
resolves10.1126/science.255.5046.845
Early Evolution of Avian Flight and Perching: New Evidence from the Lower Cretaceous of China
resolves10.1126/science.1126377
A Nearly Modern Amphibious Bird from the Early Cretaceous of Northwestern China
resolves10.1080/14772019.2010.504080
Distribution of the predentary bone in Mesozoic ornithurine birds
resolves10.1007/s12583-010-0220-z
Major features of the vertebrate diversity of the Early Cretaceous Jehol Biota and their paleoecological implications
resolves10.1139/e03-011
Anatomy of the primitive bird <i>Sapeornis chaoyangensis </i>from the Early Cretaceous of Liaoning, China
resolves10.1007/s00114-003-0416-5
Jeholornis compared to Archaeopteryx, with a new understanding of the earliest avian evolution
resolves10.1073/pnas.0507106102
Discovery of an ornithurine bird and its implication for Early Cretaceous avian radiation
resolves10.1111/j.1463-6409.2006.00234.x
A beaked basal ornithurine bird (Aves, Ornithurae) from the Lower Cretaceous of China
resolves10.1007/s00114-004-0567-z
Gastroliths in Yanornis: an indication of the earliest radical diet-switching and gizzard plasticity in the lineage leading to living birds?
resolves10.1139/e05-038
Anatomy of the Early Cretaceous bird <i>Eoenantiornis buhleri</i> (Aves: Enantiornithes) from China
resolves10.1111/j.1469-7580.2008.00880.x
Insight into diversity, body size and morphological evolution from the largest Early Cretaceous enantiornithine bird
resolves10.1098/rspb.2009.0885
A new Lower Cretaceous bird from China and tooth reduction in early avian evolution
resolves10.1016/j.cretres.2006.06.003
Palaeomagnetic and 40Ar/39Ar dating constraints on the age of the Jehol Biota and the duration of deposition of the Sihetun fossil-bearing lake sediments, northeast China
The 36 references without a DOI — listed, not checked
no DOI — not checkedPapers in Avian Paleontology Honoring Pierce Brodkorb
no DOI — not checkedHandbook of Avian Anatomy: Nomina Anatomica Avium, Second Edition
no DOI — not checkedMesozoic Birds: Above the Heads of Dinosaurs
no DOI — not checkedChiappe, L.M. 2007. Glorified Dinosaurs: the Origin and Early Evolution of Birds. John Wiley & Sons, Hoboken, 263 pp.
no DOI — not checkedMesozoic Birds: Above the Heads of Dinosaurs
no DOI — not checkedcit0006
no DOI — not checkedcit0007
no DOI — not checkedClarke, J.A. 2002.The morphology and systematic position ofIchthyornisMarsh and the phylogenetic relationships of basal Ornithurae. Unpublished PhD thesis, Yale University, New Haven. 532 pp.
no DOI — not checkedPp.
no DOI — not checkedNew Perspectives on the Origin and Early Evolution of Birds
no DOI — not checkedNew Perspectives on the Origin and Early Evolution of Birds
no DOI — not checkedHou, L. 1997b. Mesozoic Birds of China. Feng-huang-ku Bird Park, Taiwan, 221 pp.
no DOI — not checkedcit0020
no DOI — not checkedcit0021
no DOI — not checkedcit0071
no DOI — not checkedPapers from the 2005 Heyuan International Dinosaur Symposium
no DOI — not checkedcit0024
no DOI — not checkedKurochkin, E.N. 1999. The relationships of the Early CretaceousAmbiortusandOtogornis(Aves: Ambiortiformes).Smithsonian Contributions to Paleobiology, 89, 275–284.
no DOI — not checkedSystema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Vol. 1: Regnum animale. Editio decima, reformata.
no DOI — not checkedcit0030
no DOI — not checkedO’Connor, J.K. 2009. A systematic review of Enantiornithes (Aves: Ornithothoraces). Unpublished PhD Thesis, University of Southern California, Los Angeles, 600 pp.
no DOI — not checkedcit0032
no DOI — not checkedcit0072
no DOI — not checkedcit0042
no DOI — not checkedcit0043
no DOI — not checkedcit0044
no DOI — not checkedZhou, Z. 1999.Early evolution of birds and avian flight—&break;evidence from Mesozoic fossils and modern birds. P. 216. University of Kansas, Lawrence.
no DOI — not checkedcit0045
no DOI — not checkedcit0046
no DOI — not checkedMesozoic Birds: Above the Heads of Dinosaurs
no DOI — not checkedcit0050
no DOI — not checkedcit0055
no DOI — not checkedcit0056
no DOI — not checkedcit0057
no DOI — not checkedThe Chinese Fossil Reptiles and Their Kin
no DOI — not checkedcit0063
What this badge says. CiteStamped means the CHECKABLE references of this
work were clean at the dated check: each resolved to a known work in a public registry, and none
carried a publisher retraction notice at that time. It says nothing about the quality, findings,
or importance of the work itself, and nothing about references deposited without a DOI.
checked 2026-07-14 — re-checked daily as this page is visited; titles and statuses come from Crossref and DataCite and are not part of the signed record
Embed this badge
Both snippets point at the live badge image and link back to this page. The badge re-renders from the daily check, so an embed never goes stale by more than a day of visits.
<a href="https://citestamp.com/citestamped/10.1080/14772019.2012.690455"><img src="https://citestamp.com/citestamped/10.1080/14772019.2012.690455/badge.svg" alt="CiteStamped reference-health badge" width="460" height="64"></a>
[](https://citestamp.com/citestamped/10.1080/14772019.2012.690455)