Megalictis
Megalictis is an extinct genus of large predatory mustelids that existed in North America during the "cat gap" from the Late Arikareean (Ar4) in the Miocene epoch. It is thought to have resembled a huge, jaguar-sized ferret, weighing up to 60–100 kilograms (130–220 lb).
Alberto Valenciano, Jon A. Baskin, Juan Abella,Alejandro Pérez-Ramos, M. Ángeles Álvarez-Sierra, Jorge Morales, Adam… · CC BY 2.5 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- OligobuninaePBDB
- Diet
- carnivore, omnivorePBDB, for Mustelidae
- Life habit
- scansorialPBDB, for Mustelidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At most 4.6 million years on record.
Every occurrence read is dated to somewhere between 23.1 Mya and 18.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
13 occurrences of Megalictis on record, most of them in the Miocene. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
13 occurrencesThese are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
4 formations
- Marsland Formation · Hemingford Group6
- Rosebud Formation2
- Delaho Formation1
- Harrison Formation1
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The named rock units Megalictis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Megalictis and its relatives
MioceneWhere Megalictis and its relatives were recorded in the Miocene.
Found in the same rock
90 taxa- Merychyus minimus5 sites
- Camelidae4 sites
- Diceratherium3 sites
- Merychyus arenarum3 sites
- Merycochoerus matthewi3 sites
- Merycoides stouti3 sites
- Phlaocyon minor3 sites
- Tanymykter brachyodontus3 sites
- Borophaginae2 sites
- Daphoenodon2 sites
- Desmocyon thomsoni2 sites
- Geomyoidea2 sites
- Gregorymys riggsi2 sites
- Herpetotherium2 sites
- Menoceras arikarense2 sites
- Moropus hollandi2 sites
- Nanotragulus ordinatus2 sites
- Phlaocyon annectens2 sites
- Stenomylus gracilis2 sites
- Ysengrinia americana2 sites
- Alligatoridae1 site
- Anchitheriinae1 site
- Archaeolagus acaricolus1 site
- Archaeolagus buangulus1 site
The Paleobiology Database records 13 sites for Megalictis, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
7 references- The giant mustelid Megalictis from the Early Miocene carnivore dens at Agate Fossil Beds National Monument, Nebraska: earliest evidence of dimorphism in New World Mustelidae (Carnivora, Mammalia)5
- Synonymies and reidentifications of North American fossil mammals2
- Review of the Miocene Wounded Knee faunas of southwestern South Dakota2
- The giant mustelid Megalictis from the early Miocene carnivore dens at Agate Fossil Beds National Monument, Siouix County, Nebraska1
- Faunal succession, lithofacies, and depositional environments in Arikaree rocks (lower Miocene) of the Hartville Table, Nebraska and Wyoming1
- Some early Miocene carnivores1
- The Miocene Beds of Western Nebraska and Eastern Wyoming and Their Vertebrate Faunae1
Each of the 13 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Megalictis
- Source
- Wikipedia/Commons
- Credit
- Alberto Valenciano, Jon A. Baskin, Juan Abella,Alejandro Pérez-Ramos, M. Ángeles Álvarez-Sierra, Jorge Morales, Adam…
- Licence
- CC BY 2.5
- Commercial use
- the licence allows it
No 3D scan of Megalictis was found in MorphoSource and Sketchfab.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Megalictis”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itOligobuninae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Matthew 1907