PBDB Taxon

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

Megathiris detruncata

Rhynchonellata - Terebratulida - Megathyrididae

Taxonomy

Anomia detruncata was named by Gmelin (1791). It is extant.

It was misspelled as Megathyris detruncata by Bitner and Dulai (2004); it was recombined as Megathiris detruncata by Barczyk and Popiel-Barczyk (1977), Gaetani and Sacca (1985), Popiel-Barczyk and Barczyk (1990), Bitner (1990), Kroh (2003), García Ramos (2004), Taddei Ruggiero and Taddei (2006), Dulai (2007), Koskeridou (2007), Bitner and Schneider (2009), Dulai et al. (2010), Dulai (2010), Dulai (2011), Pavézková et al. (2013), Bitner et al. (2013), Bitner et al. (2013), Bitner and Motchurova-Dekova (2016), Bitner and Müller (2017), Bitner and Müller (2022), Bitner et al. (2023).

Synonyms

Anomia decollata was named by Chemnitz (1785).

It was recombined as Megathiris decollata by d'Orbigny (1870); it was replaced with Megathiris detruncata by Bitner and Dulai (2004).
Argiope multicostata was named by Bosquet (1864).

It was synonymized subjectively with Megathiris detruncata by Bitner and Müller (2017).

Synonymy list

Year	Name and author
1785	Anomia decollata Chemnitz p. 96 figs. Pl. 78, Fig. 705
1791	Anomia detruncata Gmelin
1864	Argiope multicostata Bosquet
1870	Megathiris decollata d'Orbigny p. 145 figs. 22, 23
1977	Megathiris detruncata Barczyk and Popiel-Barczyk p. 164 figs. Pl 1, figs 4,5
1985	Megathiris detruncata Gaetani and Sacca p. 17 figs. Pl 9, figs 10-12; pl 10, figs 11-14
1990	Megathiris detruncata Bitner p. 135 figs. Pl 3, figs 1-8; pl 6, figs 1-7; text-figs 3,4
1990	Megathiris detruncata Popiel-Barczyk and Barczyk p. 175 figs. Pl 6, figs 6-11; pl 7, figs 1-13; text-figs 10, 11
2003	Megathiris detruncata Kroh p. 147 figs. Pl. 1, Fig. 4-6
2004	Megathyris detruncata Bitner and Dulai
2004	Megathiris detruncata García Ramos p. 29 figs. Pl 2, figs 3-6
2006	Megathiris detruncata Taddei Ruggiero and Taddei p. 304 figs. Pl 3, fig 4
2007	Megathiris detruncata Dulai p. 2 fig. 2
2007	Megathiris detruncata Koskeridou p. 126 figs. Pl. 2, Fig. 3-4
2009	Megathiris detruncata Bitner and Schneider p. 127 figs. 6A-F
2010	Megathiris detruncata Dulai p. 26 figs. Pl 3, fig 1
2010	Megathiris detruncata Dulai et al. p. 186 figs. Pl 2, fig 4
2011	Megathiris detruncata Dulai p. 305 fig. 8A,B
2013	Megathiris detruncata Bitner et al. p. 586 figs. 3a-m, Tbl. 3
2013	Megathiris detruncata Bitner et al. p. 83 figs. 3J-L
2013	Megathiris detruncata Pavézková et al. p. 58 fig. 4
2016	Megathiris detruncata Bitner and Motchurova-Dekova p. 10 figs. 3A-L
2017	Megathiris detruncata Bitner and Müller p. 216 fig. 4
2022	Megathiris detruncata Bitner and Müller p. 93 figs. 5A-H
2023	Megathiris detruncata Bitner et al. p. 40 figs. 2B-F

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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	Terebratulida
suborder	Terebratellidina	Muir-Wood 1955
superfamily	Megathyridoidea	Dall 1870
family	Megathyrididae	Dall 1870
genus	Megathiris	d'Orbigny 1847
species	detruncata	(Gmelin 1791)

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.

Megathiris detruncata Gmelin 1791

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Invalid names: Argiope multicostata Bosquet 1864 [synonym], Megathiris decollata Chemnitz 1785 [replaced]

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
height	5	2.88	2.10	3.40	3.00	0.497
shell height	7	1.88	1.60	3.10	1.60	0.566

Composition:

low Mg calcitep

Environment:

marineuc

Locomotion:

stationaryf

Attached:

yesf

Life habit:

low-level epifaunalf

Diet:

suspension feederf

Vision:

blindc

Created:

2018-11-10 17:30:31

Modified:

2018-11-10 17:30:31

Source: f = family, c = class, p = phylum, uc = unranked clade

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

Age range: base of the Ypresian to the top of the Calabrian or 56.00000 to 0.77400 Ma

Collections (54 total)

Time interval	Ma	Country or state	Original ID and collection number
Ypresian	56.0 - 48.07	Austria	Megathiris detruncata (133103)
Priabonian	37.71 - 33.9	Hungary	Megathiris detruncata (161770)
Priabonian	37.71 - 33.9	Austria	Megathiris detruncata (233275 233277 233287)
Priabonian	37.71 - 33.9	Ukraine	Megathiris detruncata (186786)
Rupelian	33.9 - 27.3	Germany	Megathiris detruncata (233116 233119 233120)
Chattian	27.3 - 23.04	France (Aquitaine)	Megathiris detruncata (88795)
Chattian	27.3 - 23.04	France (Landes)	Megathiris detruncata (152689 152694)
Chattian	27.3 - 23.04	France	Megathiris detruncata (152688 152695)
Burdigalian	20.45 - 15.98	Germany	Megathiris detruncata (188985 190204 190205)
Langhian	15.98 - 13.82	Austria	Megathiris detruncata (153681)
Badenian	13.82 - 12.8	Austria	Megathiris detruncata (152564)
Badenian	13.82 - 12.8	Romania	Megathyris detruncata (72246)
Badenian	13.82 - 12.8	Czechia	Megathiris detruncata (152286 233294 233295)
Badenian	13.82 - 12.8	Bulgaria	Megathiris detruncata (175794)
Badenian	13.82 - 12.8	Hungary	Megathiris detruncata (155785)
Badenian	13.82 - 12.8	Poland	Megathiris detruncata (51687 159682 159683 159684 159686 159687 159688 159689 194953 233128 233132 233133 233136 233138 233143 233144)
Serravallian	13.82 - 11.63	Cyprus	Argiope detruncata (71882)
Tortonian	11.63 - 7.246	Italy	Megathiris detruncata (186801)
Zanclean	5.333 - 3.6	Spain	Megathiris detruncata (190899 190902 190904 190906)
Piacenzian	3.6 - 2.58	Algeria	Megathiris detruncata (152660)
Gelasian	2.58 - 1.8	Italy	Megathiris detruncata (187570)
Gelasian	2.58 - 1.8	Greece	Megathiris detruncata (153679)
Calabrian	1.8 - 0.774	Italy (Apulia)	Megathiris detruncata (97591 187441)
Calabrian	1.8 - 0.774	Italy	Megathiris detruncata (187566 187734)