PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Stramentum

Thecostraca - Archaeolepadomorpha - Stramentidae

Taxonomy

Stramentum was named by Logan (1897) [Sepkoski's age data: K Albi-m K Maes]. It is the type genus of Stramentidae, Stramentinae.

It was assigned to Cirripedia by Sepkoski (2002); to Stramentidae by Hattin (1977), Collins (1986), Hauschke (1994) and Kočová Veselská et al. (2020); and to Stramentinae by Gale (2016) and Chan et al. (2021).

Species

Squama lata, Squama spissa, S. (Stramentum), S. alekseevi, S. canadensis, S. elegans, S. haworthi (syn. S. tabulatum), S. inconstans, S. praecursor, S. pulchellum (syn. Loricula gigas, Loricula darwini, Loricula macadami)

Synonyms

Stramentum (Stramentum) was named by Logan (1897).

It was considered an invalid subgroup of Stramentum by Gale (2016).

It was assigned to Stramentum by Logan (1987) and Hauschke (1994).
Squama was named by Logan (1897).

It was synonymized subjectively with Stramentum by Hattin (1977).
Loricula was named by Sowerby (1843). Its type is Loricula pulchella.

It was replaced with Stramentum by Withers (1920).

Synonymy list

Year	Name and author
1843	Loricula Sowerby p. 260
1897	Stramentum (Stramentum) Logan
1897	Squama Logan p. 187
1897	Stramentum Logan p. 188
1977	Stramentum Hattin p. 806
1986	Stramentum Collins p. 126
1987	Stramentum (Stramentum) Logan
1994	Stramentum Hauschke p. 13
1994	Stramentum (Stramentum) Hauschke p. 13
2002	Stramentum Sepkoski
2016	Stramentum Gale p. 682
2020	Stramentum Kočová Veselská et al. p. 137
2021	Stramentum Chan et al.

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Ecdysozoa
—	Panarthropoda
phylum	Arthropoda	Latreille 1829
—	Deuteropoda
—	Mandibulata
—	Pancrustacea	Zrzavý and Štys 1997

Rank	Name	Author
subphylum	Crustacea	Brünnich 1772
class	Thecostraca	(Gruvel 1905)
subclass	Cirripedia	(Rafinesque 1816)
infraclass	Thoracica	(Darwin 1854)
superorder	Thoracicalcarea	()
order	Archaeolepadomorpha
family	Stramentidae	Withers 1920
subfamily	Stramentinae	Withers 1920
genus	Stramentum

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.

G. †Stramentum Logan 1897

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†Stramentum alekseevi Gale 2016

†Stramentum canadensis Whiteaves 1889

†Stramentum elegans Hattin 1977

†Stramentum haworthi Williston 1896

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Invalid names: Stramentum tabulatum Logan 1897 [synonym]

†Stramentum inconstans Collins 1986

†Stramentum praecursor Gale 2016

†Stramentum pulchellum Sowerby 1843

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Invalid names: Loricula darwini Woodward 1908 [synonym], Loricula gigas Fritsch 1878 [synonym], Loricula macadami Thomson 1858 [synonym]

Invalid names: Loricula Sowerby 1843 [replaced], Squama Logan 1897 [synonym], Stramentum (Stramentum) Logan 1897 [invalid subgroup]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Locomotion:

stationaryc

Attached:

yesc

Epibiont:

yesc

Life habit:

epifaunalc

Diet:

suspension feederc

Vision:

limitedc

Created:

2008-03-04 07:51:33

Modified:

2011-06-14 02:28:17

Source: c = class

Reference: Kiessling 2004

Age range: base of the Early/Lower Albian to the top of the Late/Upper Campanian or 112.03000 to 70.60000 Ma

Collections (44 total)

Time interval	Ma	Country or state	Original ID and collection number
Early/Lower Albian	112.03 - 109.0	Colombia	S. sp. (67374 67375) S. sp. A (67363)
Late/Upper Cenomanian	99.6 - 93.5	Germany	S. pulchellum (9178)
Middle Cenomanian	99.6 - 93.5	United Kingdom (England)	S. praecursor (210338 210339)
Middle Cenomanian	99.6 - 93.5	France	S. pulchellum (210344)
Turonian	93.9 - 89.8	United Kingdom (Northern Ireland)	Loricula macadami (210342)
Early/Lower Turonian	93.5 - 89.3	Mexico (Nuevo Leon)	S. pulchellum (87879 87880)
Early/Lower Turonian	93.5 - 89.3	Nigeria	S. inconstans (159897)
Early/Lower Turonian	93.5 - 89.3	United Kingdom (England)	Loricula darwini (210341) Loricula pulchella (210340)
Early/Lower Turonian	93.5 - 89.3	Morocco	S. inconstans (175005)
Late/Upper Turonian	93.5 - 89.3	Czech Republic	S. pulchellum (210309)
Late/Upper Turonian	93.5 - 89.3	Kazakhstan	Loriculina laevissima (210443)
Late/Upper Turonian	93.5 - 89.3	United Kingdom (England)	S. pulchellum (71069)
Middle Turonian	93.5 - 89.3	USA (Kansas)	S. canadensis (210333) S. elegans (150368 210320 210321 210322 210323 210324 210325 210326 210327 210328 210329 210330 210331 210332)
Early/Lower Coniacian	89.3 - 85.8	Mexico (Coahuila)	S. sp. (210315)
Late/Upper Coniacian	89.3 - 85.8	USA (Kansas)	Squama lata (210349) Squama spissa (210348)
Santonian	86.3 - 83.6	USA (South Dakota)	S. haworthi (160520)
Santonian	86.3 - 83.6	USA (Kansas)	Pollicipes haworthi (210347) S. haworthi (160519) S. tabulatum (210350)
Santonian	86.3 - 83.6	USA (Colorado)	S. haworthi (87853 160521 160522)
Late/Upper Santonian	85.8 - 83.5	USA (Kansas)	S. haworthi (210346)
Late/Upper Campanian	83.5 - 70.6	Belgium	S. pulchellum (211444)