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Hemiaulus polymorphus ✝
| Source Data |
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| Rank | species | ||||||||||||||||||
| Taxonomy (GBIF) | Life : Chromista : Ochrophyta : Bacillariophyceae : Hemiaulales : Hemiaulaceae : Hemiaulus : Hemiaulus polymorphus | ||||||||||||||||||
| Taxonomy (PBDB) | Life : Bacillariophyta : Hemiaulus : Hemiaulus polymorphus | ||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | ||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Generic Name | Hemiaulus | ||||||||||||||||||
| Scientific Name | Hemiaulus polymorphus Grunow | ||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extinct | ||||||||||||||||||
| Taxon Size (PBDB) | 2 | ||||||||||||||||||
| First Recorded Appearance | 83.6 - 72.1 Ma Late/Upper Cretaceous | ||||||||||||||||||
| Last Recorded Appearance | 13.8 - 11.6 Ma Miocene | ||||||||||||||||||
| Primary Reference (PBDB) | G. Andrews. 1976. Miocene marine diatoms from the Choptank Formation, Calvert County, Maryland. Professional Paper |
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
|---|---|---|---|---|---|
| Hemiaulus polymorphus charkovianus variety | accepted (GBIF) | No associated record in PBDB | |||
| Hemiaulus polymorphus frigida variety | accepted (GBIF) | No associated record in PBDB | |||
| Hemiaulus polymorphus glacialis variety | accepted (GBIF) | No associated record in PBDB | |||
| Hemiaulus polymorphus morsiana variety | accepted (GBIF) | No associated record in PBDB | |||
| Hemiaulus polymorphus polymorphus variety | accepted (GBIF) | No associated record in PBDB | |||
| Hemiaulus polymorphus pusilla variety | accepted (GBIF) | No associated record in PBDB | |||
| Hemiaulus polymorphus virginica ✝ variety | accepted (GBIF) listed (PBDB) | ||||
Synonymy List
| Year | Name and Author |
|---|---|
| 1884 | Hemiaulus polymorphus Grunow |
| 1976 | Hemiaulus polymorphus Andrews p. 18 |
References
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
