PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Stegerhynchus diodontus

Rhynchonellata - Rhynchonellida - Rhynchotrematidae

Taxonomy

Terebratula diodonta was named by Dalman (1828).

It was recombined as Leleshusia diodonta by Bassett and Cocks (1974); it was recombined as Stegerhynchus diodontus by Rubel and Rozman (1977).

Sister species lacking formal opinion data

S. acinus, S. althi, S. anagaciensis, S. angaciencis, S. angaciensis, S. bisinuatus, S. carmelensis, S. clairensis, S. concinnus, S. daphne, S. decemiplicata, S. decemplicatus, S. deltolingulatus, S. diodonta, S. dispar, S. ekwanensis, S. eoborealis, S. indianense, S. indianensis, S. juliverti, S. moieroensis, S. mongolicus, S. moyeroensis, S. neglectum, S. neglectus, S. nuculus, S. pseudolivonicus, S. pseudonuculus, S. tungusensis, S. ulukhemensis, S. whitei, S. whitii

Synonymy list

Year	Name and author
1974	Leleshusia diodonta Bassett and Cocks
1977	Stegerhynchus diodontus Rubel and Rozman

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
—	Lophophorata
—	Panbrachiopoda	Carlson and Cohen 2020
phylum	Brachiopoda	Cuvier 1805

Rank	Name	Author
subphylum	Rhynchonelliformea	Williams et al. 1996
class	Rhynchonellata	Williams et al. 1996
order	Rhynchonellida	Kuhn 1949
superfamily	Rhynchotrematoidea	Schuchert 1913
family	Rhynchotrematidae	Schuchert 1913
subfamily	Rhynchotrematinae	Schuchert 1913
genus	Stegerhynchus	(Foerste 1909)
species	diodontus	(Dalman 1828)

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.

†Stegerhynchus diodontus Dalman 1828

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Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

low Mg calcitep

Entire body:

yesg

Adult length:

1.0 to < 10g

Adult width:

1.0 to < 10g

Adult height:

1.0 to < 10g

Folds:

minorg

Ribbing:

majorg

Spines:

noneg

Internal reinforcement:

noneg

Environment:

marineuc

Locomotion:

stationaryg

Attached:

yesg

Epibiont:

yesg

Life habit:

epifaunalg

Diet:

suspension feederg

Vision:

blindc

Created:

2009-04-13 10:39:58

Modified:

2009-06-02 16:12:01

Source: g = genus, c = class, p = phylum, uc = unranked clade

References: Aberhan et al. 2004, Nesnidal et al. 2013, Hendy et al. 2009

Age range: base of the Jaagarahu to the top of the Kaugetuma or 431.20000 to 421.60000 Ma

Collections (19 total)

Time interval	Ma	Country or state	Original ID and collection number
Sheinwoodian	432.9 - 430.6	Norway	Ferganella diodonta (14275)
Sheinwoodian	432.9 - 430.6	Sweden (Gotland)	Ferganella diodonta (13525 13527)
Wenlock	432.9 - 426.7	Lithuania	Stegerhynchus diodontus (207295)
Jaagarahu	431.2 - 428.6	Estonia (Saare)	Stegerhynchus diodontus (174965 175061 175079 195600)
Homerian	430.6 - 426.7	Norway	Ferganella diodonta (14316)
Homerian - Gorstian	430.6 - 425.0	Sweden (Gotland)	Ferganella diodonta (13530)
Paadla	426.7 - 423.0	Estonia	Stegerhynchus diodontus (175080)
Paadla	426.7 - 423.0	Estonia (Saare)	Stegerhynchus diodontus (175076 193112)
Gorstian - Ludfordian	426.7 - 422.7	Sweden (Gotland)	Ferganella diodonta (13531)
Ludlow	426.7 - 422.7	Belarus	Stegerhynchus diodontus (23658)
Kuressaare	423.0 - 422.7	Estonia	Stegerhynchus diodontus (207256)
Kuressaare	423.0 - 422.7	Latvia	Stegerhynchus diodontus (207253)
Kaugetuma	422.7 - 421.6	Estonia	Stegerhynchus diodontus (207257)
Kaugetuma	422.7 - 421.6	Estonia (Saare)	Stegerhynchus diodontus (193113)