| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Dolerorthis rankini
Taxonomy
Orthis rankini was named by Davidson (1883) [Orthis Rankini].
It was recombined as Orthis (Dalmanella) rankini by Reed (1917); it was recombined as Dolerorthis rankini by Williams (1962) and Candela and Harper (2014).
It was recombined as Orthis (Dalmanella) rankini by Reed (1917); it was recombined as Dolerorthis rankini by Williams (1962) and Candela and Harper (2014).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1883 | Orthis rankini Davidson pp. 190, 226 figs. pl. xi, figs. 17-19 |
| 1917 | Orthis (Dalmanella) rankini Reed p. 852 figs. pl. ix, figs. 31-37; pl. x, figs. 1-3. |
| 1962 | Dolerorthis rankini Williams p. 114 figs. P1. IX, figs. 28, 29, 39, 40 |
| 2014 | Dolerorthis rankini 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.
†Dolerorthis rankini Davidson 1883
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Williams 1962 | Subquadrate Dolerorthis with a subcarinate pedicle valve about one-quarter as deep as long and a more gently convex, strongly sulcate brachial valve about four-fifths as long as wide; interareas of both valves long and curved, delthyrium narrow and slot-like; ornamentation concentrically lamellose and finely multicostellate with over 90 costellae in adult shells averaging about 14 per 5 ram. anteromedianly; teeth strong, dental lamellae short and receding, continuous with low ridges forming the lateral boundaries to a slightly elevated rhomboidal muscle-scar over two-thirds as wide as long and extending forward for one-third the length of the pedicle valve, adductor scar lanceolate, diductor scars continuous anteriorly with a pair of subjacent vascula media, separated from each other by only a median depression; cardinal process thin and plate-like, flanked by a pair of subsidiary ridges also arising from the notothyrial floor; notothyrial platform massive, encrusting brachiophore bases and extending anteriorly as a broad median ridge; dorsal adductor scars small, limited to the posterior quarter of the valve floor and behind two pairs of strong divergent sinuses which are interpreted as vascula media. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
| Source: g = genus, o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004, Hendy 2009 | |||||
Age range: base of the Aurelucian to the top of the Burrellian or 458.40000 to 452.50000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Aurelucian | United Kingdom (Scotland) | Dolerorthis rankini (165033) | |
| Burrellian | United Kingdom (Scotland) | Dolerorthis rankini (165046 165049 165050) |