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Holcothyris angulata

Rhynchonellata - Terebratulida - Postepithyrididae

Taxonomy
Holcothyris angulata was named by Buckman (1917). Its type specimen is GSI type No. 11758 and is a 3D body fossil. Its type locality is Pangwoleng, which is in a Bathonian carbonate limestone in the Namyau Beds Formation of Myanmar. It is the type species of Holcothyris.

Subspecies
H. areolata, H. depressa
Sister species lacking formal opinion data
H. hsenwiensis

Synonymy list
YearName and author
1917Holcothyris angulata Buckman p. 192 figs. Pl. 10, Fig. 1-4
1940Holcothyris angulata Sahni p. 10 figs. Pl. 2, Fig. 16-17, a-c; Text Fig. 7a-c
2013Holcothyris angulata Dieni et al. p. 132 figs. Fig. 7f-i, 8-9, 10e-f

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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
orderTerebratulida
suborderTerebratulidina
superfamilyLoboidothyridoideaMakridin 1964
familyPostepithyrididae
genusHolcothyris
speciesangulata

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.

†Holcothyris angulata Buckman 1917
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Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
height215.014.415.715.10.919
shell height1015.711.618.616.22.09

Composition: low Mg calcitep
Environment: marineuc
Locomotion: stationaryf
Attached: yesp
Life habit: low-level epifaunalf
Diet: suspension feederf
Vision: blindc
Created: 2018-11-10 17:50:59
Modified: 2018-11-10 17:50:59
Source: f = family, c = class, p = phylum, uc = unranked clade
References: Aberhan et al. 2004, Nesnidal et al. 2013

Age range: base of the Early/Lower Bathonian to the top of the Bathonian or 167.70000 to 166.10000 Ma

Collections (19 total)


Time interval Ma Country or state Original ID and collection number
Bathonian168.3 - 166.1Myanmar Holcothyris angulata (158510 158513 type locality: 158514 158515 158517)
Early/Lower Bathonian167.7 - 164.7China Holcothyris angulata (161263)
Early/Lower Bathonian167.7 - 164.7France Holcothyris angulata (170150 170162 170207 170216 170282 170287 170322 170532 170544 170633)
Early/Lower Bathonian167.7 - 164.7Italy Holcothyris angulata (160187 160188 160190)