Megabalanus
Uncredited · via Wikidata/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
- MegabalaninaePBDB
- Diet
- suspension feederPBDB, for Balanidae
- Life habit
- epifaunal, gregariousPBDB, for Balanidae
- Motility
- stationary, attached, epibiontPBDB, for Balanidae
- Vision
- limitedPBDB, for Cirripedia
Time the record covers
At least 15 million years on record.
The record covers at least 15.98 Mya to 129 ka. No occurrence read is dated outside 23.04 Mya to 0 Mya.
34 occurrences of Megabalanus on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. 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
34 occurrences- Miocene15%
- Pliocene32%
- Pleistocene53%
- Holoceneunder 1%
These 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
9 formations
- Pico Formation4
- Unnamed Formation3
- Palos Verdes Sand Formation3
- Mulege Formation2
- Ysidro Formation1
- Isidro Formation1
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The named rock units Megabalanus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 17 occurrences have no formation on record, which is common for older literature.
Megabalanus and its relatives
PleistoceneWhere Megabalanus and its relatives were recorded in the Pleistocene.
Found in the same rock
1,408 taxa- Californiconus californicus13 sites
- Callianax biplicata11 sites
- Tresus nuttallii11 sites
- Crepidula adunca10 sites
- Thylacodes squamigerus10 sites
- Alia carinata9 sites
- Caesia fossatus9 sites
- Crepipatella lingulata9 sites
- Littorina (Littorina) scutulata9 sites
- Acanthinucella spirata8 sites
- Amphissa versicolor8 sites
- Atrimitra idae8 sites
- Crassadoma gigantea8 sites
- Fissurella volcano8 sites
- Megastraea undosa8 sites
- Mytilus californianus8 sites
- Saxidomus nuttalli8 sites
- Anomia peruviana7 sites
- Caesia perpinguis7 sites
- Chama pellucida7 sites
- Chlorostoma funebrale7 sites
- Dallocardia quadragenarium7 sites
- Dentalium neohexagonum7 sites
- Epilucina californica7 sites
The Paleobiology Database records 29 sites for Megabalanus, 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
21 references- New information on molluscan paleontology and depositional environments of the Upper Pliocene Pico Formation, Valencia area, Los Angeles County, southern California4
- Geology of San Nicolas Island, California3
- Pleistocene invertebrates from Punta Baja, Baja California, Mexico3
- Geología del Área Carrizalillo-El Tofo, Regiones de Atacama y Coquimbo2
- Upper Pleistocene Rocky Shores and Intertidal Biotas at Playa La Palmita (Baja California Sur,Mexico)2
- Late Pleistocene Invertebrates from Punta Cabras, Baja California, Mexico2
- Pleistocene invertebrates from Punta China, Baja California, Mexico, with remarks on the composition of the Pacific coast Quaternary faunas2
- A Pleistocene invertebrate fauna from the southwest corner of San Diego County, California2
- Expedition to the Revillagigedo Islands, Mexico, in 1925, VII. Contribution to the geology and paleontology of the Tertiary of Cedros Island and adjacent parts of Lower California2
- Cirripedes (Crustacea) from the Neogene and Pleistocene of Lee Creek Mine, Beaufort County, North Carolina, USA1
- Palaeoecology, taphonomy, and preservation of a lower Pliocene shell bed (coquina) froma volcanic oceanic island (Santa Maria Island, Azores)1
- Localidades fossiliferas da Formacao Pirabas (Mioceno Inferior)1
Each of the 34 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. 9 further references are not listed. 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 Megabalanus
- Source
- Wikidata/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 Megabalanus was found in Sketchfab.
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itMegabalaninae through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Hoek 1913)