Un immense squelette de dinosaure découvert au Portugal
Les paléontologues portugais et espagnols qui ont réalisé les fouilles pensent que ces fossiles sont ceux d'un brachiosauridé – une famille de ...
la carte interactive de PaleobioDb.org
Le désert de Gobi, l’Ouest américain ou encore le centre de la Chine sont de célèbres gisements de fossiles de dinosaures. Mais il faut savoir que l’Europe est un territoire tout aussi prolifique en la matière – comme l’atteste <anchor>la carte interactive de PaleobioDb.org</anchor>, qui recense tous les fossiles ayant fait l’objet d’une publication scientifique. À noter qu’en France, la Provence et le Languedoc sont des régions où l’on découvre encore fréquemment des restes de dinosaures – au total, près de 1000 sites à dinosaures ont été découverts dans l’Hexagone.
PBDB Navigator
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Sampled-in-bin diversity for current view data

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##### What's in this plot?

This plot displays the "sampled-in-bin" diversity; that is, it counts the number of occurrences of the selected taxa in each time bin within the selected geographic extent. Sampled-in-bin genus diversity is approximate and based on the quick_div API route. The advanced diversity curve generator displays a more complete diversity summary, based on the full diversity API route.

Before switching to the advanced diversity curve window, choose the taxonomic and temporal resolution you want to use.

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Advanced diversity metrics for current view data

Map bounds:

-180 to 180 N, -90 to 90 E

Taxonomic level: Genus

Temporal resolution: Age

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Sampled-in-bin diversity

Rangethrough diversity

Include singletons

Origination rate

Extinction rate

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##### How are these calculated?

Sampled-in-bin diversity is the number of taxa actually found in each time interval, just as in the basic diversity method.

Rangethrough diversity shows each taxon as present from its first occurrence to its last occurrence, whether or not it was ever found in the fossil record in the intervening intervals.

Origination and extinction rates are estimated here using the "per-capita rate" method of Foote (2000) (Table 1)26[74:OAECOT]2.0.CO;2). This method compares the number of taxa which exist both before and after each interval are compared to those that either originate or go extinct during it. In terms of the values returned by the diversity API method, origination = -ln((xbt)/(xbt+xft))/(eag-lag) and extinction = -ln((xbt)/(xbt+xbl))/(eag-lag). Values for the Late Pleistocene and Holocene are not calculated, because these very short intervals are poorly suited to comparison with the rest. Note that many other methods exist for calculating diversity and origination/extinction rates; those given here are among the simplest.

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All PBDB data is released under a CC BY 4.0 International license. For more information about citing the database or requesting an official publication number, please see the FAQ page.

Application state URL:

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Data URL:

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The API data URL for taxonomic occurrence data. For use with external services and scripts, such as R or Python. See the data service documentation for additional information.

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#### About GPlates

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#### PBDB Navigator 1.0

#### The Application

Built on the PBDB API, PBDB Navigator allows users to explore the Paleobiology Database through space, time, and taxonomy. All code unique to the PBDB Navigator interface uses a CC0 1.0 Universal Public Domain Dedication, and can be found on Github.

#### Data Sources

Paleobiology Database

GPlates

Phylopic

#### Project Funding

Current development of the PBDB database, API, website, and example applications is being carried out in the Department of Geoscience at the University of Wisconsin-Madison. It is supported by the UW-Madison Deptartment of Geoscience and the U.S. National Science Foundation EAR Geoinformatics grant 0949416.

#### Project Team

PBDB Contributors

Data entry & vetting

Shanan Peters

Principal Investigator

Michael McClennen

Chief Informaticist

John Czaplewski

Web developer / designer / cartographer

#### Issues

If you notice any issues or oddities with Navigator, you can help us improve it by filing a new issue or commenting on an existing one on the issues page. For general questions about the Paleobiology Database or PBDB Navigator, please email admin@paleobiodb.org.

## Welcome to PBDB Navigator!

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