PBDB Taxon

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

Terminaster cancriformis

Taxonomy

Asterias cancriformis was named by Quenstedt (1876). It is not extant. Its type specimen is Institut fÃ¼r Geologie und PalÃ¤ontologie, UniversitÃ¤t TÃ¼bingen. It is the type species of Terminaster. It was considered monophyletic by Hess (1974).

It was recombined as Terminaster cancriformis by Hess (1974), Hess (1975), Kutscher (1987), Villier et al. (2009), Gale (2011), Gale (2011), Fau and Villier (2023).

Year	Name and author
1876	Asterias cancriformis Quenstedt p. 49 figs. pl. 91 fig. 155
1974	Terminaster cancriformis Hess p. 657 figs. 1-8, pl. 1-3
1975	Terminaster cancriformis Hess p. 657 figs. 1-8, pl. 1-3
1987	Terminaster cancriformis Kutscher pp. 66-67 figs. pl. 10 fig. 11, pl. 11 fig. 2-4
2009	Terminaster cancriformis Villier et al. pp. 390-394 figs. figs. 3.1-3.3, 4.1-4.4
2011	Terminaster cancriformis Gale pp. 84-87 figs. figs 16a-f
2023	Terminaster cancriformis Fau and Villier p. 10

Reference	Diagnosis
H. Hess 1974	As for the genus by monotypy
L. Villier et al. 2009	Size small. Form stellate with reduced disk and cylindrical arms. Primary plates of the disk clearly differentiated with one centrodorsal and a primary circlet of radial and interradial plates. Plates of the arm large, aligned in three well defined rows (interpreted as radial, superomarginal, and inferomarginal plates), each plate with a spine. Few additional and reduced plates intercalated between radial and superomarginal plates. Adambulacral plates all of the same shape,with ornament of two spines. Two rows of podial pores. Mouth angle plate with a large oral spine. First adambulacral plates of adjoining arms in contact interbrachially, to form a reduced adoral carina. Terminal plate very large with aligned tubercles for articulation of spines on oral margins and smaller tubercles on the abactinal side. Pedicellariae unknown.

Time interval	Ma	Country or state	Original ID and collection number
Callovian	165.3 - 161.5	Germany (Brandenburg)	Terminaster cancriformis (32016)
Early/Lower Callovian	165.3 - 161.5	France	Terminaster cancriformis (58221)
Late/Upper Oxfordian	157.9 - 154.8	France	Terminaster cancriformis (61724)
Late/Upper Oxfordian	157.9 - 154.8	Switzerland	Terminaster cancriformis (58317)