WebThe trionychids from the Bissekty Formation are most similar to trionychids from the younger (Santonian – early Campanian) Bostobe Formation of Kazakhstan, represented by three shell-based taxa (Aspideretoides riabinini, Paleotrionyx riabinini and “Trionyx” kansaiensis), and one skull-based taxon (Khunnuchelys sp.). WebPlastra of Hummelichelys is similar with plastra of recent Apalone sensu stricto on the one side and with Zangerlichelys and Paleotrionyx on the other (see below). Usually the medial fontanelle between the hyoplastra and hypoplastra is well developed with exception of “Plastomenus” robustus, in which it absent.
Fossilworks: Paleotrionyx
WebPaleotrionyx quinni sp. nov. Holotype. — Chicago Natural History Museum No. P26441, a carapace with one side essentially complete. Found by Alfred A. Look, Jr. Horizon and type locality. — Plateau Valley beds, late Paleocene; 2}4 miles west of DeBeque, Mesa County, Colorado (one-half mile dse index historical data
PALEOCENE-EOCENE TURTLES OF THE PICEANCE CREEK BASIN, COLORADO
WebDownload scientific diagram Strict consensus tree of the most parsimonious trees generated from the phylogenetic analysis of 113 upper dental characters scored against … WebThe Trionychidae are a taxonomic family of a number of turtle genera, commonly known as softshell turtles.The family was erected by Leopold Fitzinger in 1826. Softshells include some of the world's largest freshwater turtles, though many can adapt to living in highly brackish areas. Members of this family occur in Africa, Asia, and North America, with … http://www.prehistoric-wildlife.com/species/a/axestemys.html dse how to sit