''Batrachichnus'' is an amphibian

ichnogenus An ichnotaxon (plural ichnotaxa) is "a taxon based on the fossilized work of an organism", i.e. the non-human equivalent of an artifact. ''Ichnotaxa'' comes from the Greek ίχνος, ''ichnos'' meaning ''track'' and ταξις, ''taxis'' meaning ...

commonly found in assemblages of

ichnofossil A trace fossil, also known as an ichnofossil (; from el, ἴχνος ''ikhnos'' "trace, track"), is a fossil record of biological activity but not the preserved remains of the plant or animal itself. Trace fossils contrast with body fossils, ...

s dating to the Mississippian to

Triassic The Triassic ( ) is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.36 Mya. The Triassic is the first and shortest period ...

of North America, South America, and Europe. The animal producing the tracks was likely a

temnospondyl Temnospondyli (from Greek language, Greek τέμνειν, ''temnein'' 'to cut' and σπόνδυλος, ''spondylos'' 'vertebra') is a diverse order (biology), order of small to giant tetrapods—often considered Labyrinthodontia, primitive amphi ...

. ''B. slamandroides'' is the smallest known tetrapod footprint, produced by an animal with an estimated body length of just

Description

The tracks show four toes and part or all of the palms. Pes (rear foot) prints often overstep the manus (front foot) prints. The digits were short and blunt. Toe drags are common. Some trackways show a transition from a walking to a running gait.

References

{{Trace-fossil-stub Vertebrate trace fossils