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Nannirhynchia pygmaea

Rhynchonellata - Rhynchonellida - Norellidae

Taxonomy
Terebratula pygmaea was named by Morris (1847). It is a 3D body fossil. Its type locality is Ilminster, Leptaena bed (Moore collection), which is in a Tenuicostatum carbonate limestone in the Junction Bed Formation of the United Kingdom.

It was recombined as Nannirhynchia pygmoea by Alméras et al. (2007); it was recombined as Nannirhynchia pygmaea by Ager (1967), Schemm-Gregory and Henriques (2012).

Sister species lacking formal opinion data
N. pilulla

Synonymy list
YearName and author
1847Terebratula pygmaea Morris p. 256 figs. Pl 19, fig 3
1967Nannirhynchia pygmaea Ager p. 138 figs. Pl 12, figs 3-5; text-fig 87
2007Nannirhynchia pygmoea Alméras et al. p. 41
2012Nannirhynchia pygmaea Schemm-Gregory and Henriques p. 79 figs. 3-5

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
—PanbrachiopodaCarlson and Cohen 2020
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderRhynchonellidaKuhn 1949
superfamilyNorelloideaAger 1959
familyNorellidaeAger 1959
subfamilyLaevirhynchiinae()
genusNannirhynchia
speciespygmaea(Morris 1847)

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.

†Nannirhynchia pygmaea Morris 1847
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Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height263.802.205.503.750.642

Composition: low Mg calcitep
Environment: marineuc
Locomotion: stationaryo
Attached: yesp
Life habit: epifaunalo
Diet: suspension feedero
Vision: blindc
Created: 2004-02-28 14:12:25
Modified: 2004-02-28 16:12:25
Source: o = order, c = class, p = phylum, uc = unranked clade
References: Aberhan et al. 2004, Nesnidal et al. 2013

Age range: base of the Spinatum to the top of the Early/Lower Toarcian or 192.90000 to 182.90000 Ma

Collections (33 total)


Time interval Ma Country or state Original ID and collection number
Spinatum192.9 - 184.2Tunisia Nannirhynchia pygmaea (84291) Nannirhynchia pygmoea (84292)
Early/Lower Toarcian184.2 - 182.9United Kingdom (Gloucestershire) Nannirhynchia pygmaea (204118)
Early/Lower Toarcian184.2 - 182.9Portugal Nannirhynchia pygmaea (25946 25947 25948 25949 25950 25951 25952 25953 25954 25956)
Early/Lower Toarcian184.2 - 182.9Portugal (Coimbra) Nannirhynchia pygmaea (211004 211005 211006 211007 211033 211034 211035 211036 211037 211038 211039 211040 211041 211042)
Tenuicostatum184.2 - 182.9France Nannirhynchia pygmaea (159497)
Tenuicostatum184.2 - 182.9United Kingdom (Somerset) Terebratula pygmaea (159399 159495)
Tenuicostatum184.2 - 182.9Portugal Nannirhynchia pygmaea (138304)
Tenuicostatum184.2 - 182.9United Kingdom (England) Nannirhynchia pygmaea (159496)
Tenuicostatum184.2 - 182.9Algeria Nannirhynchia pygmoea (148284)