| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Drepanorhyncha calva
Taxonomy
Drepanorhyncha calva was named by Williams (1962). Its type specimen is B.73768, a shell, and it is a 3D body fossil.
Synonymy list
| Year | Name and author |
|---|---|
| 1962 | Drepanorhyncha calva Williams pp. 233 - 235 figs. Pl. XXIV, figs. 7-9, 17; Fig. 12 |
| 2014 | Drepanorhyncha calva Candela and Harper pp. Supplement 1 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
†Drepanorhyncha calva Williams 1962
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Williams 1962 | Subtrigonal, unequally biconvex Drepanorhyncha with a narrow hinge-line and small, almost erect interareas, brachial valve strongly inflated, almost as long and about one-half as deep as wide, median fold originating at about 3 ram. from a conspicuous dorsal umbo, sharply carinate anteriorly and about one-half as wide as the maximum width, lateral areas convex; pedicle valve less convex and deeply sulcate in a style complementary to the dorsal fold, delthyrium open; dental lamellae and ventral median septum parallel to one another and extending anteriorly for over one-third of the length of the pedicle valve, crural bases subparallel and ankylosed to the brachial valve for about one-third of its length. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Burrellian to the top of the Cheneyan or 456.60000 to 451.30000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Burrellian | United Kingdom (Scotland) | Drepanorhyncha calva (192745) | |
| Cheneyan | United Kingdom (Scotland) | Drepanorhyncha calva (164412) |