PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Dicystoconcha lapparenti

Strophomenata - Productida - Permianellidae

Taxonomy

Dicystoconcha lapparenti was named by Termier et al. (1974) [No holotype designated].

Synonyms

Guangdongina xiamaoensis was named by Mou and Liu (1989). Its type specimen is Zhongshan Univ 86713, a valve (Ventral valve), and it is a 3D body fossil. Its type locality is Jiahe Area, Upper Member Douling Fm, Guangzhou City, which is in a Capitanian coastal siliciclastic in the Douling Formation of China.

It was synonymized subjectively with Dicystoconcha lapparenti by Wang and Jin (1991), Shen and Tazawa (2014), Tazawa and Araki (2018).
Guangdongina leguminiformis was named by Mou and Liu (1989). Its type specimen is Zhongshan Univ 86703, a valve (Ventral valve), and it is a 3D body fossil. Its type locality is Jiahe Area, Upper Member Douling Fm, Guangzhou City, which is in a Capitanian coastal siliciclastic in the Douling Formation of China.

It was synonymized subjectively with Dicystoconcha lapparenti by Wang and Jin (1991), Shen and Tazawa (2014), Tazawa and Araki (2018).
Guangdongina perforans was named by Mou and Liu (1989). Its type specimen is Zhongshan Univ 86701, a valve (Ventral valve), and it is a 3D body fossil. Its type locality is Jiahe Area, Upper Member Douling Fm, Guangzhou City, which is in a Capitanian coastal siliciclastic in the Douling Formation of China.

It was synonymized subjectively with Dicystoconcha lapparenti by Wang and Jin (1991), Shen and Tazawa (2014), Tazawa and Araki (2018).
Tenerella usualisa was named by Liang (1990). It is a 3D body fossil. Its type locality is Lengwu, lower Cunhouling Member, Tonglu, which is in a Capitanian coastal siliciclastic in the Lengwu Formation of China.

It was synonymized subjectively with Dicystoconcha lapparenti by Clapham (2015).
Dipunctella contracta was named by Liang (1982). It is a 3D body fossil. Its type locality is Xinhuai, Changxing County, which is in a Wuchiapingian marine siliciclastic in the Longtan Formation of China.

It was recombined as Paritisteges contracta by Liang (1990); it was synonymized subjectively with Dicystoconcha lapparenti by Tazawa and Araki (2018).
Paritisteges latesulcata was named by Liang (1990).

It was synonymized subjectively with Dicystoconcha lapparenti by Tazawa and Araki (2018).
Fabulasteges planata was named by Liang (1990). It is a 3D body fossil. Its type locality is Lengwu, upper Shiziling Member, Tonglu, which is in a Capitanian coastal marl/limestone in the Lengwu Formation of China.

It was synonymized subjectively with Dicystoconcha lapparenti by Shen and Tazawa (2014), Tazawa and Araki (2018).
Fabulasteges pumilis was named by Liang (1990). It is a 3D body fossil. Its type locality is Lengwu, upper Shiziling Member, Tonglu, which is in a Capitanian coastal marl/limestone in the Lengwu Formation of China.

It was synonymized subjectively with Dicystoconcha lapparenti by Clapham (2015).
Dipunctella stenosulcata was named by Liang (1982). It is a 3D body fossil. Its type locality is Lengwu, upper Shiziling Member, Tonglu, which is in a Capitanian coastal marl/limestone in the Lengwu Formation of China.

It was synonymized subjectively with Dicystoconcha lapparenti by Clapham (2015).
Guangjiayanella guangjiayanensis was named by Yang (1984). It is a 3D body fossil.

It was synonymized subjectively with Dicystoconcha lapparenti by Shen and Tazawa (2014), Tazawa and Araki (2018).

Synonymy list

Year	Name and author
1974	Dicystoconcha lapparenti Termier et al. p. 123 figs. Pl 22, figs 1-2; text-fig 22
1982	Dipunctella contracta Liang
1982	Dipunctella stenosulcata Liang p. 228 figs. Pl 100, figs 8,9
1982	Dipunctella contracta Liang p. 229 figs. Pl 102, fig 3
1984	Guangjiayanella guangjiayanensis Yang p. 212 figs. Pl 31, figs 11-16; text-figs 5-9
1989	Guangdongina leguminiformis Mou and Liu p. 458 figs. Pl 3, figs 4-8
1989	Guangdongina xiamaoensis Mou and Liu p. 458 figs. Pl 1, figs 1-9; pl 2, figs 1-7; text-fig 5
1989	Guangdongina perforans Mou and Liu p. 459 figs. Pl 2, fig 8; pl 3, figs 1-3
1990	Dipunctella stenosulcata Liang p. 372 figs. Pl 42, figs 10,11
1990	Tenerella usualisa Liang p. 374 figs. Pl 42, figs 5-8; pl 43, figs 1-4,10-13; test-fig 49
1990	Paritisteges contracta Liang p. 378 figs. Pl 43, figs 7,8
1990	Paritisteges latesulcata Liang p. 380 figs. Pl 42, figs 1,2
1990	Fabulasteges planata Liang p. 381 figs. Pl 42, figs 3,4
1990	Fabulasteges pumilis Liang p. 382 figs. Pl 42, fig 9
2014	Dicystoconcha lapparenti Shen and Tazawa p. 248 figs. 3.1-3.5
2018	Dicystoconcha lapparenti Tazawa and Araki p. 16 fig. 4.2

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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	Strophomenata	Williams et al 1996
order	Productida	Sarycheva and Sokolskaya 1959
suborder	Lyttoniidina
superfamily	Permianelloidea	He and Zhu 1979
family	Permianellidae	He and Zhu 1979
genus	Dicystoconcha
species	lapparenti

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.

†Dicystoconcha lapparenti Termier et al. 1974

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Invalid names: Dipunctella contracta Liang 1982 [synonym], Dipunctella stenosulcata Liang 1982 [synonym], Fabulasteges planata Liang 1990 [synonym], Fabulasteges pumilis Liang 1990 [synonym], Guangdongina leguminiformis Mou and Liu 1989 [synonym], Guangdongina perforans Mou and Liu 1989 [synonym], Guangdongina xiamaoensis Mou and Liu 1989 [synonym], Guangjiayanella guangjiayanensis Yang 1984 [synonym], Paritisteges latesulcata Liang 1990 [synonym], Tenerella usualisa Liang 1990 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

low Mg calcitep

Environment:

marinesubo

Locomotion:

stationarysubo

Attached:

yessubo

Life habit:

low-level epifaunalsubo

Diet:

suspension feedersubo

Vision:

blindc

Created:

2018-11-10 17:08:09

Modified:

2018-11-10 17:08:09

Source: subo = suborder, c = class, p = phylum

References: Williams et al. 2000, Aberhan et al. 2004

Age range: base of the Roadian to the top of the Wuchiapingian or 274.40000 to 254.14000 Ma

Collections (11 total)

Time interval	Ma	Country or state	Original ID and collection number
Roadian	274.4 - 266.9	Afghanistan	Dicystoconcha lapparenti (81407)
Roadian - Wordian	274.4 - 264.28	Malaysia	Dicystoconcha lapparenti (40411)
Wordian	266.9 - 264.28	Japan (Miyagi)	Dicystoconcha lapparenti (149789)
Wordian	266.9 - 264.28	Japan	Dicystoconcha lapparenti (118974)
Capitanian	264.28 - 259.51	China (Guangdong)	Guangdongina xiamaoensis, Guangdongina leguminiformis, Guangdongina perforans, Guangdongina sp. (95724)
Capitanian	264.28 - 259.51	China (Zhejiang)	Tenerella usualisa (111932 111934) Tenerella usualisa, Paritisteges contracta (95519) Tenerella usualisa, Paritisteges latesulcata, Fabulasteges planata, Fabulasteges pumilis, Dipunctella stenosulcata (111933)
Wuchiapingian	259.51 - 254.14	China (Hunan)	Dicystoconcha lapparenti (117461)
Wuchiapingian	259.51 - 254.14	China (Zhejiang)	Dipunctella contracta (120113)