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Showing results for tags 'anura'.
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From the album: Hell Creek Formation Microsite
A fragment of a frog jaw, with telltale bumps on the labial surface. -
Identification According to Dr. Dave DeMar's ID guide for Hell Creek microfossils, frog jaws have a bumpy labial surface (unlike those of salamanders or lizards). Comments Frogs have small and fragile skeletons, so identifiable remains are uncommon, especially in the Hell Creek formation where the preservation bias seems to favor large-bodied animals.
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From the album: Hell Creek / Lance Formations
An overlooked member of this ecosystem - the humble frog. The night soundscape may have been dominated by them and insects, as in many forested/swampy ecosystems today.