PBDB Taxon

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Rijckholtia

Trilobita - Proetida - Proetidae

Taxonomy

Rijckholtia was named by Donovan and Van Den Hoek Ostende (2010). Its type is Proetus ryckholti.

Species

R. ryckholti

Synonyms

Coniproetus (Ryckholtia) was named by Snajdr (1980) [Sepkoski's age data: S Ludl-u D Gedi Sepkoski's reference number: 933 [nec Fritsch 1910, a mollusc]]. Its type is Proetus ryckholti.

It was reranked as Ryckholtia by Jell and Adrain (2002) and Sepkoski (2002); it was replaced with Rijckholtia by Donovan and Van Den Hoek Ostende (2010).

It was assigned to Coniproetus by Snajdr (1980); to Proetidae by Jell and Adrain (2002); and to Proetida by Sepkoski (2002).

Synonymy list

Year	Name and author
1980	Coniproetus (Ryckholtia) Snajdr
2002	Ryckholtia Jell and Adrain p. 441
2002	Ryckholtia Sepkoski

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Ecdysozoa
—	Panarthropoda
phylum	Arthropoda	Latreille 1829

Rank	Name	Author
subphylum	Artiopoda	(Hou and Bergstrom)
class	Trilobita	Walch 1771
order	Proetida	Fortey and Owens 1975
superfamily	Proetoidea	Hawle and Corda 1847
family	Proetidae	Salter 1864
subfamily	Proetinae	Salter 1864
genus	Rijckholtia	(Alberti 1966)

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. †Rijckholtia Donovan and Van Den Hoek Ostende 2010

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†Rijckholtia ryckholti Barrande 1846

Invalid names: Ryckholtia Snajdr 1980 [replaced]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

low Mg calcitec

Composition 2:

chitinc

Entire body:

yesf

Adult length:

10 to < 100f

Adult width:

10 to < 100f

Ontogeny:

molting, addition of partsc

Environment:

marinec

Locomotion:

fast-movingc

Life habit:

low-level epifaunalc

Diet:

deposit feedero

Vision:

well-developedf

Created:

2009-06-11 18:30:23

Modified:

2009-12-19 04:35:55

Source: f = family, o = order, c = class

References: Fortey and Owens 1999, Hendy 2009, Aberhan et al. 2004

Age range: base of the Gorstian to the top of the Ludfordian or 427.40000 to 423.00000 Ma

Collections (5 total)

Time interval	Ma	Country or state	Original ID and collection number
Gorstian	427.4 - 425.6	Czech Republic	Ryckholtia sp. (14106)
Ludfordian	425.6 - 423.0	Czech Republic (Praha)	Corniproetus ryckholti (230929)
Ludfordian	425.6 - 423.0	Czech Republic	Corniproetus ryckholti (230925 230930) Ryckholtia sp. (14110)