Added tetratime back in

Meta-Paleo · Aug 12, 2019 · 9ebd7f6c90da205fedd1d17f8a50c148fbf0639f · 9ebd7f6
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+---
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+title: "TetraTime"
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+output: html_document
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+---
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+Aim: To analyse the growth of tetrapod clades through time
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+Potential title: Tracking the growth of the fossil record
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+This has already been done for [dinosaurs](https://peerj.com/articles/4417/) - now let's see what happens if we examine this for all tetrapod clades! 
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+Key research questions:
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+1. Do all clades show the same growth patterns?
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+2. Are any clades 'stable'?
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+3. What implications does this have on their diversity/extinction patterns?
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+4. What is the structure of growth in terms of geography?
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+Data sources: [Fossilworks](http://fossilworks.org/bridge.pl?user=Guest&action=displayDownloadForm)
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+Notes on data selection:
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+* Restricted to Mesozoic groups as the data are most complete
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+* Downloaded occurences from [here](http://fossilworks.org/bridge.pl?user=Guest&action=displayDownloadForm) using the 'full form' option
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+* Basic options: Set taxonomic level to species; set time span as 'Mesozoic'
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+* Included collections: Keep all default options set
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+* Included occurrences: Remove ichnofossils and form taxa; keep all other default options set
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+* Colletion fields: basic fields, check all; geography fields, check all; time fields, check all; stratigraphy fields, check all; lithology fields, check all; no taphonomy or collection methods required
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+* Occurence fields: check ocurence no, reference no, year published, taxon no, type specimen, type locality
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+* Date downloaded: 02/08/2019
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+Groups:
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+* Dinosauria (minus Aves)
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+* Aves
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+* Testudinata
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+* Choristodera
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+* Crocodyliformes
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+* Ichythyopterygia
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+* Lepidosauromorpha
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+* Lissamphibia
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+* Mammaliaformes
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+* Pterosauria
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+* Sauropterygia
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+Major data contributors:
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+Matthew Carrano
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+John Alroy
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+Philip Mannion
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+Roger Benson
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+Visualisation ideas:
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+* Create a gif/video/dynamic figure showing how, for each clade, diversity patterns have changed through publication history.
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+* Create a gif/video/dynamic figure showing how, for each clade, the geographic distribution/discovery has changed through publication history 
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+This project can be contributed to on [GitHub](https://github.com/Meta-Paleo/TetraTime).