Tachyglossus fossil map
Where fossils of Tachyglossus have been found, shown on the Earth as it looked about 0 million years ago and on today’s map.
Dots are fossil collections recorded in the Paleobiology Database. The “then” view moves today’s fossil sites back to their positions 0 million years ago (the time slice nearest the median age of the fossils) using the Merdith et al. (2021) plate model; positions are approximate. Open on the timeline map →

| Group | Early mammals |
|---|---|
| Lived | 2.58 million years ago to the present (Gelasian to Holocene) |
| Periods | Quaternary |
| Family | Tachyglossidae |
| Named by | (Illiger 1811) |
| Fossil records | 12 occurrences at 5 locations (PBDB) |
| Found in | Australia |
| Rock formations | txn:39742 |
About Tachyglossus
The short-beaked echidna (Tachyglossus aculeatus), also known as the common echidna, or short-nosed echidna, is one of four living species of echidna, and the only member of the genus Tachyglossus, from Ancient Greek ταχύς (takhús), meaning "fast", and γλῶσσα (glôssa), meaning "tongue". It is covered in fur and spines and has a distinctive snout and a specialised tongue, which it uses to catch its insect prey at a great speed. Like the other extant monotremes, the short-beaked echidna lays eggs; the monotremes are the only living group of mammals to do so.
The short-beaked echidna has extremely strong front limbs and claws, which allow it to burrow quickly with great power. As it needs to be able to survive underground, it has a significant tolerance to high levels of carbon dioxide and low levels of oxygen. It has no weapons or fighting ability but deters predators by curling into a ball and protecting itself with its spines. It cannot sweat or deal well with heat, so it tends to avoid daytime activity in hot weather. It can swim if needed. The snout has mechanoreceptors and electroreceptors that help the echidna to detect its surroundings.
Text in “About” is quoted from the Wikipedia article Short-beaked echidna (revision 1380879515), licensed under CC BY-SA 4.0; introduction excerpted verbatim, formatting removed. Ages, family, authority and fossil records: Paleobiology Database, accessed 23 October 2026. Ages are those of the rock layers the fossils were found in. Wikidata: Q193182.