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Selindeochrea tricarinata
Taxonomy
Anabarites tricarinatus was named by Rozanov et al. (1969). Its type specimen is GIN 3593/122 and is not a trace fossil.
It was recombined as Anabaritellus tricarinatus by Landing and Murphy (1991); it was recombined as Selindeochrea tricarinata by Val'kov (1982), Missarzhevsky (1989), Kouchinsky et al. (2009) and Kouchinsky et al. (2017).
It was recombined as Anabaritellus tricarinatus by Landing and Murphy (1991); it was recombined as Selindeochrea tricarinata by Val'kov (1982), Missarzhevsky (1989), Kouchinsky et al. (2009) and Kouchinsky et al. (2017).
Synonymy list
| Year | Name and author |
|---|---|
| 1969 | Anabarites tricarinatus Rozanov et al. p. 185 figs. pl. 8 f. 13; pl. 14 f. 5; txt. f. 43e |
| 1982 | Selindeochrea tricarinata Val'kov p. 76 figs. pl. 12 f. 22–28 |
| 1989 | Selindeochrea tricarinata Missarzhevsky figs. pl. 14 f. 5-6 |
| 1991 | Anabaritellus tricarinatus Landing and Murphy p. 392 figs. 4.5-4.6 |
| 2009 | Selindeochrea tricarinata Kouchinsky et al. pp. 288 – 289 fig. 48 |
| 2017 | Selindeochrea tricarinata Kouchinsky et al. p. 413 |
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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.
†Selindeochrea tricarinata Rozanov et al. 1969
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Kouchinsky et al. 2009 | Selindeochrea species characterised by almost straight or slightly twisted internal moulds with rounded lobes and flattened depressions in between them.
Internal moulds slightly twisted clockwise, with triangular tri-lobate cross-sections (Fig. 48F, H)). Grooves (depressions) between extended lobes are wide and shallow with a flattened middle part (Fig. 48F–H). There is a median narrow ridge on the flattened depressions between the lobes (Fig. 48B, D–E). In the flattened depressions, growth lines are arched and pointed at an acute angle towards the aperture (Fig. 48B, E). In preserved thecae, the lobes are extended distally by prominent keels (Fig. 48C, H). The keels undulate, with folds running towards the aperture at ca. 45˚(Fig. 48D–E). Lobes of the internal moulds are rounded or somewhat swelled and almost straight (Fig. 48F). |