This README_develop-echo-data.txt file was generated on 2022-01-15 by Agnese Lanzetti

GENERAL INFORMATION

1. Title of Dataset: Developing echolocation: distinctive patterns in the ontogeny of the tympanoperiotic complex in baleen and toothed whales (Cetacea)

2. Author Information
	A. Principal Investigator Contact Information
		Name: Agnese Lanzetti
		Institution: Natural History Museum
		Address: Cromwell Road, SW7 5BD, London, UK
		Email: agnese.lanzetti@gmail.com

	B. Associate or Co-investigator Contact Information
		Name: Natasha Chrouch
		Institution: Natural History Museum
		Address: Cromwell Road, SW7 5BD, London, UK
		Email: natasha.chrouch.20@ucl.ac.uk

		Name: Roberto Portela Miguez
		Institution: Natural History Museum
		Address: Cromwell Road, SW7 5BD, London, UK
		Email: r.portela-miguez@nhm.ac.uk

		Name: Vincent Fernandez
		Institution: Natural History Museum
		Address: Cromwell Road, SW7 5BD, London, UK
		Email: v.fernandez@nhm.ac.uk
                
                Name: Anjali Goswami
		Institution: Natural History Museum
		Address: Cromwell Road, SW7 5BD, London, UK
		Email: a.goswami@nhm.ac.uk

3. Date of data collection (single date, range, approximate date): 2021-01-15 - 2021-07-15

4. Geographic location of data collection <latitude, longiute, or city/region, State, Country, as appropriate>: London, UK

5. Information about funding sources that supported the collection of the data: H2020 Marie Skłodowska-Curie Actions, Award: 894584


SHARING/ACCESS INFORMATION

1. Licenses/restrictions placed on the data: CC0 1.0 Universal Public Domain Dedication

2. Links to publications that cite or use the data:  Agnese Lanzetti, Natasha Crouch, Roberto Portela Miguez, Vincent Fernandez, Anjali Goswami, Developing echolocation: distinctive patterns in the ontogeny of the tympanoperiotic complex in baleen and toothed whales (Cetacea), Biological Journal of the Linnean Society, Volume 135, Issue 2, February 2022, Pages 394–406, https://doi.org/10.1093/biolinnean/blab160

3. Links/relationships to ancillary data sets: Github repository for code and derived data - https://doi.org/10.5281/zenodo.5838872 (https://github.com/AgneseLan/earbones-cetacea-growth/tree/v1.1)

4. Was data derived from another source? No

5. Recommended citation for this dataset: Lanzetti, Agnese et al. (2022), Developing echolocation: distinctive patterns in the ontogeny of the tympanoperiotic complex in baleen and toothed whales (Cetacea), Dryad, Dataset, https://doi.org/10.6086/D1R69C


DATA & FILE OVERVIEW

1. File List: 
   bulla_R.zip : zipped folder containing (1) PLY (meshes) of the right tympanic bulla for each specimen used for the GPSA and the GPSA prototype mesh, (2) outputs and text file log of GPSA 		 analysis
   periotic_R.zip : zipped folder containing (1) PLY (meshes) of the right periotic for each specimen used for the GPSA and the GPSA prototype mesh, (2) outputs and text file log of GPSA 		            analysis

2. Are there multiple versions of the dataset? No


METHODOLOGICAL INFORMATION

1. Description of methods used for collection/generation of data: 
	PLY files: A total of 75 specimens of Cetacea from 7 international museum collections, 28 Mysticeti (baleen whales) and 47 Odontoceti (toothed whales), spanning from embryos (<2 	months from conception) to adults are analysed in this study for the tympanic bulla. As the periotic starts ossifying in later stages of gestation [9, 10], only 46 of these 	specimens could be used for analyses of this element. Specimens were binned into embryos or early fetuses (estimated age <50% total gestational length, n = 45), late fetuses (>50% 	total gestational length, n = 19), and postnatal specimens (neonates, juveniles and adults, n = 11). This unparalleled dataset has representatives of all four living mystictes 	families and of five of the 10 extant families of odontocetes. Data was collected using CT scanning and reconstructed in 3D using Avizo 2020.3. It was then processed in Geomagic 	Wrap 2017 to create shapes with uniform number of triangles to use in the GPSA analysis.

	GPSA results: Results of this analysis are also provided, including a text file that describes all procedures performed in the software. A separate text files describes the 	procedure used to obtain prototype shape. 

	Additional information on the dataset collection, shape preparation and GPSA analyses are available in the publication connected to this dataset and its Supplementary materials.
3. Instrument- or software-specific information needed to interpret the data: 
	The GPSA software is available at https://morphlab.sc.fsu.edu/software/gpsa/ to repeat the analyses using the provided PLY files. 
	
	Code to analyze the homologized points and ordination values obtained with the GPSA is provided in the following GitHub repository: https://doi.org/10.5281/zenodo.5838872 			(https://github.com/AgneseLan/earbones-cetacea-growth/tree/v1.1)