New body size data set added, chronosphere v.0.2.2
New data on body size is now added to the list of datasets available through the package. Access the data using the fetch()
function.
bodysize <- fetch("bodysize", "heim")
The data set consists of the body sizes, stratigraphic ranges, and occurrence patterns of 9 408 genera of fossil marine animals spanning eight Linnaean classes across the past 485 Myr (Payne & Heim, 2020).
head(bodysize)
## X genus phylum class order
## 1 1 Abadzekhia Chordata bony fish Perciformes
## 2 4 Abra Mollusca Bivalvia Cardiida
## 3 128 Abra (Abra) Mollusca Bivalvia Veneroida
## 4 153 Abra (Syndosmya) Mollusca Bivalvia Veneroida
## 5 158 Abrekia Brachiopoda Rhynchonellata Rhynchonellida
## 6 161 Absonocytheropteron Arthropoda Ostracoda Podocopida
## family fad lad logsize logvol
## 1 33.90 33.9 2.65321251 5.947956
## 2 Semelidae 56.00 1.0 1.57978360 4.006990
## 3 Semelidae 41.30 1.0 1.36116100 3.385586
## 4 Semelidae 56.00 56.0 1.35945602 3.380739
## 5 Rhynchonellidae 252.17 247.2 1.06613949 2.604762
## 6 38.00 38.0 -0.09309059 -1.059562
References
Payne, J., & Heim, N. (2020). Body size, sampling completeness, and extinction risk in the marine fossil record. Paleobiology, 46(1), 23-40. https://doi.org/10.1017/pab.2019.43