Evidence map›Paper›PMID 30035227›Full record

ArticleScience advances2018

A mid-Cretaceous embryonic-to-neonate snake in amber from Myanmar.

Lida Xing, Michael W Caldwell, Rui Chen, Randall L Nydam, Alessandro Palci, Tiago R Simões, Ryan C McKellar, Michael S Y Lee, Ye Liu, Hongliang Shi and 2 more

Abstract read
In one paragraph

Article in Science advances, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed.

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  7. The FirstBiology · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Lida XingState Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing 100083, China.ORCID 0000-0003-3923-9206
Michael W CaldwellDepartment of Biological Sciences, University of Alberta, Edmonton, Alberta T6G 2E9, Canada.ORCID 0000-0002-2377-3925
Rui ChenKey Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
Randall L NydamDepartment of Anatomy, Midwestern University, Glendale, AZ 85308, USA.ORCID 0000-0002-2186-0216
Alessandro PalciSouth Australian Museum, North Terrace, Adelaide, South Australia 5000, Australia.ORCID 0000-0002-9312-0559
Tiago R SimõesDepartment of Biological Sciences, University of Alberta, Edmonton, Alberta T6G 2E9, Canada.
Ryan C McKellarRoyal Saskatchewan Museum, Regina, Saskatchewan S4P 4W7, Canada.
Michael S Y LeeSouth Australian Museum, North Terrace, Adelaide, South Australia 5000, Australia.ORCID 0000-0002-3905-0887
Ye LiuKey Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
Hongliang ShiBeijing Forestry University, Beijing 100083, China.
Kuan WangPaleo-diary Museum of Natural History, Beijing 100097, China.
Ming BaiKey Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We present the first known fossilized snake embryo/neonate preserved in early Late Cretaceous (Early Cenomanian) amber from Myanmar, which at the time, was an island arc including terranes from Austral Gondwana. This unique and very tiny snake fossil is an articulated postcranial skeleton, which includes posterior precloacal, cloacal, and caudal vertebrae, and details of squamation and body shape; a second specimen preserves a fragment of shed skin interpreted as a snake. Important details of skeletal ontogeny, including the stage at which snake zygosphene-zygantral joints began to form along with the neural arch lamina, are preserved. The vertebrae show similarities to those of fossil Gondwanan snakes, suggesting a dispersal route of Gondwanan faunas to Laurasia. Finally, the new species is the first Mesozoic snake to be found in a forested environment, indicating greater ecological diversity among early snakes than previously thought.

Indexed as

AmberAnimalsBone and BonesEmbryo, NonmammalianFossilsMyanmarPhylogenySnakesX-Ray MicrotomographyAmber

Identifiers

PMID30035227
PMCPMC6051735

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.