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Arcida
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| Description | The Arcida is an extant order of bivalve molluscs. This order dates back to the lower Ordovician period. They are distinguished from related groups, such as the mussels, by having a straight hinge to the shells, and the adductor muscles being of equal size. The duplivincular ligament, taxodont dentition, and a shell microstructure consisting of the outer crossed lamellar and inner complex crossed lamellar layers are defining characters of this order. From Wikipedia article at https://en.wikipedia.org/wiki/Arcida, which is released under the Creative Commons Attribution-Share-Alike License 4.0. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Source Data |
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| Rank | order | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (GBIF,PBDB) | Life : Animalia : Mollusca : Bivalvia : Arcida | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Scientific Name | Arcida | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extant | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 1,302 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Extant Size (PBDB) | 281 (22%) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 479 - 472 Ma Early/Lower Ordovician | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Motility | facultatively mobile | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Vision | blind (based on Bivalvia) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Diet | suspension feeder | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taphonomy | aragonite | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | J. G. Carter, C. R. Altaba L. C. Anderson, R. Araujo, A. S. Biakov, A. E. Bogan, D. C. Campbell, M. Campbell, J. H. Chen, J. C. W. Cope, G. Delvene, H. H. Dijkstra, Z. J. Fang, R. N. Gardner, V. A. Gavrilova, I. A. Goncharova, P. J. Harries, J. H. Hartman, M. Hautmann, et al. 2011. A Synoptical Classification of the Bivalvia (Mollusca). University of Kansas Paleontological Institute Paleontological Contributions 4:1-47 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Arcida |
External Images
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
|---|---|---|---|---|---|
superfamily | listed (PBDB) | 11,983 | 479 Ma Early/Lower Ordovician | 0 Ma Extant | |
superfamily | listed (PBDB) | 0 Ma Extant | |||
superfamily | listed (PBDB) | 0 Ma Extant | |||
superfamily | listed (PBDB) | 10 | 479 Ma Early/Lower Ordovician | 461 Ma Middle Ordovician | |
superfamily | listed (PBDB) | 688 | 201 Ma Early Jurassic | 0 Ma Extant | |
superfamily | listed (PBDB) | 36 | 247 Ma Early/Lower Triassic | 0 Ma Extant | |
family | accepted (GBIF) listed (PBDB) | 5,510 | 269 Ma Permian | 0 Ma Extant | |
| Atomodesmidae family | accepted (GBIF) | No associated record in PBDB | |||
family | accepted (GBIF) listed (PBDB) | 3 | 479 Ma Early/Lower Ordovician | 479 Ma Early/Lower Ordovician | |
family | accepted (GBIF) listed (PBDB) | 1,292 | 365 Ma Late/Upper Devonian | 0 Ma Extant | |
family | accepted (GBIF) listed (PBDB) | 5 | 433 Ma Silurian | 426 Ma Silurian | |
family | accepted (GBIF) listed (PBDB) | 2,560 | 168 Ma Middle Jurassic | 0 Ma Extant | |
family | accepted (GBIF) listed (PBDB) | 10 | 479 Ma Early/Lower Ordovician | 461 Ma Middle Ordovician | |
family | accepted (GBIF) listed (PBDB) | 688 | 201 Ma Early Jurassic | 0 Ma Extant | |
family | accepted (GBIF) listed (PBDB) | 366 | 99.6 Ma Late/Upper Cretaceous | 0 Ma Extant | |
family | accepted (GBIF) listed (PBDB) | 2,237 | 479 Ma Early/Lower Ordovician | 0.01 Ma Pleistocene | |
family | accepted (GBIF) listed (PBDB) | 36 | 247 Ma Early/Lower Triassic | 0 Ma Extant | |
| Pitchleriidae family | accepted (GBIF) | No associated record in PBDB | |||
family | accepted (GBIF) listed (PBDB) | ||||
genus | doubtful (GBIF) listed (PBDB) | ||||
genus | doubtful (GBIF) listed (PBDB) | ||||
genus | doubtful (GBIF) listed (PBDB) | ||||
genus | doubtful (GBIF) listed (PBDB) | ||||
genus | doubtful (GBIF) listed (PBDB) | ||||
genus | listed (PBDB) | ||||
genus | accepted (GBIF) listed (PBDB) | 1 | 72.1 Ma Late/Upper Cretaceous | 72.1 Ma Late/Upper Cretaceous | |
genus | accepted (GBIF) listed (PBDB) | 34 | 222 Ma Late/Upper Triassic | 66.0 Ma Late/Upper Cretaceous | |
genus | doubtful (GBIF) listed (PBDB) | ||||
genus | listed (PBDB) | ||||
genus | accepted (GBIF) listed (PBDB) | 1 | 0.78 Ma Pleistocene | 0 Ma Extant | |
genus | accepted (GBIF) listed (PBDB) | 9 | 85.8 Ma Late/Upper Cretaceous | 0.13 Ma Pleistocene | |
genus | doubtful (GBIF) listed (PBDB) | ||||
genus | doubtful (GBIF) listed (PBDB) | ||||
genus | accepted (GBIF) listed (PBDB) | ||||
genus | accepted (GBIF) listed (PBDB) | 1 | 466 Ma Middle Ordovician | 466 Ma Middle Ordovician | |
genus | listed (PBDB) | 0 Ma Extant | |||
genus | doubtful (GBIF) listed (PBDB) | ||||
| Taeniarca genus | accepted (GBIF) | No associated record in PBDB | |||
genus | accepted (GBIF) listed (PBDB) | 1 | 453 Ma Late/Upper Ordovician | 453 Ma Late/Upper Ordovician | |
genus | doubtful (GBIF) listed (PBDB) | ||||
genus | accepted (GBIF) listed (PBDB) | ||||
genus | accepted (GBIF) listed (PBDB) | 0 Ma Extant | |||
genus | accepted (GBIF) listed (PBDB) | ||||
genus | doubtful (GBIF) listed (PBDB) | ||||
genus | accepted (GBIF) listed (PBDB) | 4 | 453 Ma Late/Upper Ordovician | 453 Ma Late/Upper Ordovician | |
Synonymy List
| Year | Name and Author |
|---|---|
| 1871 | Arcoida Stoliczka |
| 1906 | Cucullaea scrivenori Newton p. 489 figs. Pl 25, fig 13 |
| 1965 | Arcoida Newell p. 17 |
| 1980 | Arcoida Vokes p. 10 |
| 1983 | Arcoida Gliozzi and Malatesta p. 88 |
| 1984 | Arcoida Squires p. 41 |
| 1987 | Arcoida Squires p. 55 |
| 1987 | Arcoida Ward and Blackwelder p. 129 |
| 1988 | Arcoida Squires p. 17 |
| 1990 | Arcoida Beu et al. p. 393 |
| 1992 | Arcoida Ward p. 53 |
| 1997 | Arcoida Cope p. 739 |
| 1999 | Arcoida Squires p. 23 |
| 2000 | Arcoida Coan et al. pp. 125, 126 |
| Year | Name and Author |
|---|---|
| 2001 | Arcoida Todd |
| 2002 | Arcoida Giribet and Wheeler |
| 2002 | Arcoida Sepkoski, Jr. |
| 2004 | Arcoida Spencer et al. |
| 2004 | Arcoida Stilwell et al. p. 20 |
| 2006 | Arcoida Anelli et al. p. 1127 |
| 2006 | Arcoida Bieler and Mikkelsen p. 230 |
| 2006 | Arcoida Rosenberg et al. |
| 2008 | Arcoida Mikkelsen and Bieler p. 19 |
| 2008 | Arcoida Scholz et al. |
| 2009 | Arcoida Nevesskaja |
| 2010 | Arcida Bouchet et al. |
| 2011 | Arcida Carter et al. p. 7 |
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!




Columbus County, North Carolina, USA