Macomona
Macomona is a genus of marine bivalve molluscs, in the family Tellinidae.
GrahamBould · Public Domain · 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
- TellininaePBDB
- Diet
- deposit feederPBDB, for Tellinidae
- Life habit
- infaunalPBDB, for Tellinidae
- Motility
- facultatively mobilePBDB, for Tellinidae
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 36 million years on record.
The record covers at least 37.71 Mya to 774 ka. No occurrence read is dated outside 41.03 Mya to 129 ka.
8 occurrences of Macomona on record, most of them in the Eocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
8 occurrences- Eocene50%
- Pliocene38%
- Pleistocene13%
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
5 formations
- Tapui Glauconitic Sandstone Formation · Tokarahi Group3
- Ascot Formation2
- Otahuhu Formation1
- Waihao Formation1
- Waiomio Formation1
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The named rock units Macomona has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Macomona and its relatives
EoceneWhere Macomona and its relatives were recorded in the Eocene.
Found in the same rock
165 taxa- Mactra4 sites
- Tawera4 sites
- Amalda (Baryspira)3 sites
- Alaba2 sites
- Arcopsis2 sites
- Austrovenus2 sites
- Bedeva2 sites
- Bedeva paivae2 sites
- Belloliva2 sites
- Bittium2 sites
- Carditidae2 sites
- Cominella (Josepha)2 sites
- Crepidula2 sites
- Diloma2 sites
- Diplodonta zelandica2 sites
- Epicodakia2 sites
- Fellaster2 sites
- Glycymeris2 sites
- Haliotis2 sites
- Hemidonax2 sites
- Hypotrochus monachus2 sites
- Lamarcka ventricosa2 sites
- Leionucula2 sites
- Leiopyrga2 sites
The Paleobiology Database records 5 sites for Macomona, 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
5 references- The Geology of the Waitaki Subdivision3
- Pliocene-Pleistocene coastal events and history along the western margin of Australia2
- The Mid Pleistocene Waiomio Shellbed (Castlecliffian, ca. 550-600 ky), Wanganui Basin, New Zealand1
- Cenozoic Mollusca of New Zealand1
- The Geology of the Geraldine Subdivision1
Each of the 8 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 Macomona
- Source
- Wikipedia/Commons
- Credit
- GrahamBould
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
The description on this site
- Source
- Wikipedia, “Macomona”
- 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 itTellininae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Finlay 1926