Data from: Morphological evolution of the bivalve Ptychomya through the Lower Cretaceous of Argentina

Milla Carmona P, Lazo D, Soto I

Date Published: September 21, 2017

DOI: https://doi.org/10.5061/dryad.gn5j6

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Title Ptychomya data
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Description This file contains three R objects. These objects are lists with 1) shape (or size) descriptors stored as Momocs objects and 2) stratigraphic, geochronologic and taxonomic data stored as data frames, for the shell outline, ribbing pattern and shell size, respectively
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Title Curves
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Description This file contains isotopic and paleodiversity data, stored as R objects in data frame format.
Download isotope and diversity curves - Agrio Fm (805 bytes)
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Title Supplementary Figure 1
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Description Supplementary Figure 1. Distortion generated by the sliding process on the shape of the ribs of Ptychoma, represented with different numbers of coordinates. (A) Original curve (1000 coordinates) representing the most complex ribbing pattern in our sample. (B) Curve transformed to optimum number of coordinates (416) before sliding. (C) Curve transformed to 416 coordinates after sliding. (D) Curve transformed to 300 coordinates after sliding. (E) Curve transformed to 100 coordinates after sliding. (F) Curve transformed to 30 coordinates after sliding. For sliding, the first and last coordinates are treated as fixed landmarks.
Download Millacarmonaetal_SupplementaryFigure1_2col.eps (42.50 Kb)
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Milla Carmona P, Lazo D, Soto I (2017) Data from: Morphological evolution of the bivalve Ptychomya through the Lower Cretaceous of Argentina. Dryad Digital Repository. https://doi.org/10.5061/dryad.gn5j6
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