Megalodonta indet.
Bidens is a genus of flowering plants in the aster family, Asteraceae. The genus include roughly 230 species which are distributed worldwide. Despite their global distribution, the systematics and taxonomy of the genus has been described as complicated and unorganized. The common names beggarticks, black jack, burr marigolds, cobbler's pegs, Spanish needles, stickseeds, tickseeds and tickseed sunflowers refer to the fruits of the plants, most of which are bristly and barbed. The generic name refers to the same character; Bidens comes from the Latin bi ("two") and dens ("tooth").

Uncredited · 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.
Time the record covers
At most 53 million years on record.
Every occurrence read is dated to somewhere between 227.3 Mya and 174.7 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Megalodonta indet. on record, most of them in the Late Triassic. 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
2 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.
Megalodonta indet. and its relatives
Late TriassicWhere Megalodonta indet. and its relatives were recorded in the Late Triassic.
Found in the same rock
27 taxa- Agathammina austroalpina1 site
- Asterocalculus heraki1 site
- Auloconus1 site
- Aulotortus1 site
- Aulotortus sinuosus pragsoides1 site
- Aulotortus sinuosus sinuosus1 site
- Brachiopoda1 site
- Duostominidae1 site
- Duotaxis1 site
- Earlandia1 site
- Echinodermata1 site
- Gandinella1 site
- Garwoodia1 site
- Gastropoda1 site
- Glomospirella1 site
- Hedstroemia1 site
- Heteroporella1 site
- Jabrianella sp.1 site
- Ortonella1 site
- Paraophthalmidium1 site
- Probolocuspis espakhensis1 site
- Pseudoudotea1 site
- Scleractinia1 site
- Thecosmilia1 site
The Paleobiology Database records 2 sites for Megalodonta indet., 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
2 references- Triassic/Jurassic carbonates from the Hochfelln Mountain (Northern Calcareous Alps)—its facies, silicified fauna and implications for the end-Triassic biotic crisis1
- Norian calcareous Algae from the Matese Mountains (northern Campania, Italy)1
Each of the 2 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Megalodonta indet.
- Source
- Wikipedia/Commons
- Credit
- nobody named on the record
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Megalodonta indet. 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, “Bidens”
- 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 itFormations of the Late TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.