Click Here to Download: https://ouo.io/5B8i8 Palaeobiology of Middle Paleozoic Marine Brachiopods A Case Study of Extinct Organisms in Classical Paleontology By: Rituparna Bose Publisher: Springer Print ISBN: 9783319001937, 3319001930 eText ISBN: 9783319001944, 3319001949 Copyright year: 2013 Format: EPUB Available from $ 54.99 USD SKU 9783319001944 Fossil species appear to persist morphologically unchanged for long intervals of geologic time, punctuated by short bursts of rapid change as explained by the Ecological Evolutionary Units (EEUs). Here, morphological variation in Paleozoic atrypide morphology at the subfamily level (Atrypinae and Variatrypinae) from the Silurian and Devonian time intervals in the third Paleozoic EEU (~444-359 my) were investigated using relatively new techniques of quantitative modeling. The study explains how a group of closely related taxa in atrypide subfamilies exhibit morphological conservation through time in P3 EEU within the Eastern North America region.
