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Taxonomy
Entomostracites expansus was named by Wahlenberg (1821). It is the type species of Asaphus.
It was recombined as Asaphus (Asaphus) expansus by Hansen and Nielsen (2003); it was recombined as Asaphus expansus by Brongniart (1822), Dalman (1827), Nielsen (1995), Jell and Adrain (2002) and Ivantsov (2003).
It was recombined as Asaphus (Asaphus) expansus by Hansen and Nielsen (2003); it was recombined as Asaphus expansus by Brongniart (1822), Dalman (1827), Nielsen (1995), Jell and Adrain (2002) and Ivantsov (2003).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1821 | Entomostracites expansus Wahlenberg pp. 25-27 |
| 1822 | Asaphus expansus Brongniart |
| 1827 | Asaphus expansus Dalman pp. 240-242 figs. Pl. 3 f. 3a-d |
| 1995 | Asaphus expansus Nielsen pp. 77-80 figs. 60-61 , 65 |
| 2002 | Asaphus expansus Jell and Adrain p. 345 |
| 2003 | Asaphus (Asaphus) expansus Hansen and Nielsen |
| 2003 | Asaphus expansus Ivantsov p. 271 figs. pl. 2 f. 1-5; pl. 21 f. 9 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Asaphus expansus Wahlenberg 1821
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Diagnosis
No diagnoses are available