PBDB

Basic info	Taxonomic history	Classification	Relationships
Morphology	Ecology and taphonomy		Age range and collections

Trochocyathus

Anthozoa - Scleractinia - Caryophylliidae

Taxonomy

Trochocyathus was named by Milne-Edwards and Haime (1848) [Sepkoski's age data: J Bath R Sepkoski's reference number: 2]. It is extant.

It was assigned to Turbinoliidae by Koby (1895); to Caryophylliinae by Wells (1956); to Scleractinia by Sepkoski (2002); and to Caryophylliidae by Squires (2001) and Baron-Szabo (2002).

Species

Paratrochocyathus cupuliformis, Tethocyathus prahli, Tethocyathus walbersdorfensis, T. (Aplocyathus), T. (Platycyathus), T. acutus, T. adelaidensis, T. androiavensis, T. antsiranensis, T. balanophylloides, T. chevalieri, T. cingulatus, T. collignoni, T. coloradoensis, T. conulus, T. crassus, T. crooki, T. cupuliformis (syn. Deltocyathus arctous), T. depressus, T. duncani, T. egerius, T. gardnerae, T. hanzawai, T. harveyanus, T. hemisphaericus, T. imparipartitus, T. imperialis, T. infracompressus, T. lakii (syn. Protrochocyathus pergratus, T. libycus, T. desioi, T. hyatti, Cyrtocyathus collignoni), T. laminus, T. madagascariensis, T. maplestonei, T. mediterraneus, T. mexicanum, T. michelottii, T. microphyes, T. microphyllus, T. mitratus (syn. T. neumani, Protrochocyathus septempartitus, T. corbicula, Asterosmilia sakalavensis, Paracyathus kangpaensis, T. dakotaensis, Notocyathus morozi, T. matleyi, T. haunsbergensis), T. nomlandi, T. oregonensis, T. paliscus, T. perarmatus, T. pergranulatus, T. persicus, T. planicostatus, T. plicatus, T. pyrenaicus, T. revolutus, T. sachalinensis, T. schmidti, T. sellardsi, T. sismondae, T. speciosus (syn. Paratrochocyathus lemniscatus, T. johannesi, T. mississippiensis, T. kroisbachensis, Protrochocyathus deniseptatus, Tethocyathus kopetdagensis, Paratrochocyathus epicharis, Deltocyathus staszici), T. stantoni, T. subarcuatus, T. sublaevis, T. taylorensis, T. thorenti, T. townsendensis, T. uber, T. valceppiensis, T. wilkinsoni, T. wiltshirei, T. wintoni, T. woolmani

Species lacking formal opinion data

T. affinis, T. durhami, T. elongatus, T. gajensis, T. nummiformis, T. nummuliticus, T. rawsoni

View classification of included taxa

Synonyms

Pachycyathus is a genus. It is not extant.

It was synonymized subjectively with Trochocyathus by Baron-Szabo (2002).

It was assigned to Scleractinia by Sepkoski (2002).
Paratrochocyathus was named by Alloiteau (1958). It is not extant.

It was reranked as Trochocyathus (Paratrochocyathus) by Chevalier (1961); it was synonymized subjectively with Trochocyathus by Baron-Szabo (2008).

It was assigned to Trochocyathus by Chevalier (1961); and to Caryophylliidae by Turnsek et al. (2003).
Cyrtocyathus was named by Alloiteau (1958) [Sepkoski's age data: K Maes Sepkoski's reference number: 86]. It is not extant.

It was synonymized subjectively with Trochocyathus by Baron-Szabo (2002).

It was assigned to Scleractinia by Sepkoski (2002).
Platytrochopsis was named by Sikharulidze (1975) [Sepkoski's age data: K l Sepkoski's reference number: 658,ZR84]. It is not extant.

It was synonymized subjectively with Trochocyathus by Baron-Szabo (2002).

It was assigned to Scleractinia by Sepkoski (2002).
Protrochocyathus was named by Alloiteau (1958) [Sepkoski's age data: K Maes T Than-u Sepkoski's reference number: 86]. It is not extant.

It was synonymized subjectively with Trochocyathus by Baron-Szabo (2008).

It was assigned to Caryophylliinae by Baron-Szabo (1998); and to Scleractinia by Sepkoski (2002).
Tethocyathus was named by Kühn (1933) [Sepkoski's age data: T Eo-l R]. It is extant.

It was synonymized subjectively with Trochocyathus by Baron-Szabo (2009).

It was assigned to Caryophylliinae by Wells (1956); and to Scleractinia by Sepkoski (2002).

Synonymy list

Year	Name and author
1848	Trochocyathus Milne-Edwards and Haime
1895	Trochocyathus Koby
1933	Tethocyathus Kühn
1956	Tethocyathus Wells
1956	Trochocyathus Wells p. F423
1958	Cyrtocyathus Alloiteau
1958	Paratrochocyathus Alloiteau
1958	Protrochocyathus Alloiteau
1961	Trochocyathus (Paratrochocyathus) Chevalier
1975	Platytrochopsis Sikharulidze
1998	Protrochocyathus Baron-Szabo
2001	Trochocyathus Squires p. 7
2002	Trochocyathus Baron-Szabo p. 158
2002	Cyrtocyathus Sepkoski, Jr.
2002	Pachycyathus Sepkoski, Jr.
2002	Platytrochopsis Sepkoski, Jr.
2002	Protrochocyathus Sepkoski, Jr.
2002	Tethocyathus Sepkoski, Jr.
2002	Trochocyathus Sepkoski, Jr.
2003	Paratrochocyathus Turnsek et al.

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Rank	Name	Author
kingdom	Animalia	()
—	Neuralia
phylum	Cnidaria	Hatschek 1888
class	Anthozoa	Ehrenberg 1834
subclass	Zoantharia	de Blainville 1830

Rank	Name	Author
order	Scleractinia	Bourne 1900
suborder	Caryophylliina	(Vaughan and Wells 1943)
superfamily	Caryophylliicae	Gray 1847
family	Caryophylliidae	Gray 1847
genus	Trochocyathus	Milne-Edwards and Haime 1848

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.

Diagnosis

No diagnoses are available