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Hemithiridoidea
| Source Data |
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| Rank | superfamily (PBDB) | |||||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (PBDB) | Life : Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Hemithiridoidea | |||||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Opinions (PBDB) |
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| Status (PBDB) | extant | |||||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 624 | |||||||||||||||||||||||||||||||||||||||||||||
| Extant Size (PBDB) | 14 (2.2%) | |||||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 247 - 242 Ma Triassic | |||||||||||||||||||||||||||||||||||||||||||||
| Motility | stationary (based on Rhynchonellida) | |||||||||||||||||||||||||||||||||||||||||||||
| Vision | blind (based on Rhynchonellata) | |||||||||||||||||||||||||||||||||||||||||||||
| Diet | suspension feeder (based on Rhynchonellida) | |||||||||||||||||||||||||||||||||||||||||||||
| Taphonomy | low Mg calcite (based on Brachiopoda) | |||||||||||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | A. Williams, C. H. C. Brunton, and S. J. Carlson, F. Alvarez, R. B. Blodgett, A. J. Boucot, P. Copper, A. S. Dagys, R. E. Grant, Y.-G. Jin, D. I. MacKinnon, M. O. Mancenido, E. F. Owen, J.-Y. Rong, N. M. Savage, D.-L. Sun. 2002. Part H Brachiopoda (revised): Volume 4, Rhynchonelliformea (part). Treatise on Invertebrate Paleontology | |||||||||||||||||||||||||||||||||||||||||||||
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Cyclothyrididae β family | accepted (GBIF) listed (PBDB) | 1,068 | 247 Ma Early/Lower Triassic | 70.6 Ma Late/Upper Cretaceous | |
| Hemithirididae family | accepted (GBIF) listed (PBDB) | 38 | 56.0 Ma Paleocene | 0 Ma Extant | |
| Notosariidae family | accepted (GBIF) listed (PBDB) | 111 | 86.3 Ma Late/Upper Cretaceous | 0 Ma Extant | |
| Septirhynchiidae β family | accepted (GBIF) listed (PBDB) | 30 | 168 Ma Middle Jurassic | 156 Ma Jurassic | |
| Tetrarhynchiidae family | accepted (GBIF) listed (PBDB) | 2,626 | 237 Ma Middle Triassic | 66.0 Ma Late/Upper Cretaceous | |
| Triasorhynchiidae β family | accepted (GBIF) listed (PBDB) | 2 | 247 Ma Early/Lower Triassic | 247 Ma Early/Lower Triassic |
Synonymy List
| Year | Name and Author |
|---|---|
| 1956 | Hemithiridoidea Rzhonsnitskaya |
| 2002 | Hemithiridoidea Williams et al. p. 1326 |
References
| Williams A., Brunton C. H. C., et al (2002) Part H Brachiopoda (revised): Volume 4, Rhynchonelliformea (part), Treatise on Invertebrate Paleontology, 921-1688 |
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!
