PBDB Taxon

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

Perisphinctes (Arisphinctes) chloroolithicus

Cephalopoda - Ammonitida - Perisphinctidae

Taxonomy

Ammonites chloroolithicus was named by Guembel (1865).

It was recombined as Perisphinctes chloroolithicus by Waagen (1875); it was recombined as Perisphinctes (Perisphinctes) chloroolithicus by Schlegelmilch (1994); it was recombined as Perisphinctes (Arisphinctes) chloroolithicus by Pandey et al. (2012).

Sister species lacking formal opinion data

P. africanus, P. andium, P. mairei-matheyi, P. malinowskae, P. panderi, P. polygyratus, P. praestenocyclus, P. progeron, P. quadratus, P. scythicus, P. siemiradzkii, P. eucostatus, P. quadratus, P. pickeringius, P. buckmani, P. buckmanni, P. luciaeformis, P. crassissimus, P. A, P. B, P. anguiculus, P. patturatensis, P. siemirazkii, P. roedereri, P. alatus, P. andelotensis, P. densecostatus, P. pumilus, P. dorsoplanus, P. dacquei, P. polygyratus

Synonymy list

Year	Name and author
1875	Perisphinctes chloroolithicus Waagen p. 198
1994	Perisphinctes (Perisphinctes) chloroolithicus Schlegelmilch p. 61 figs. Pl 20, fig 2
2012	Perisphinctes (Arisphinctes) chloroolithicus Pandey et al.

Is something missing? Join the Paleobiology Database and enter the data

Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca
class	Cephalopoda	Cuvier 1797
subclass	Ammonoidea	()

Rank	Name	Author
order	Ammonitida
suborder	Ammonitina	Hyatt 1889
superfamily	Perisphinctoidea	(Steinman 1890)
family	Perisphinctidae	Steinmann 1890
subfamily	Perisphinctinae	Steinmann 1890
genus	Perisphinctes	()
subgenus	Arisphinctes	(Buckman 1924)
species	chloroolithicus	(Guembel 1865)

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.

†Perisphinctes (Arisphinctes) chloroolithicus Guembel 1865

show all | hide all

Diagnosis

Reference	Diagnosis
D.K. Pandey et al. 2012	Shells small to moderately large, incomplete, septate till end, evolute, compressed. Whorl section subquadrate to subtabulate in outline, lanks lat, merging smoothly into rounded venter (Fig. 15A-D). Ornamentation consists of gradually varicostate, sharp, prorsiradiate primary ribs, very ine in nucleus and moderately coarse in middle whorls. Primaries generally bifurcate into iner secondary ribs at ventrolateral region. Bifurcation occasionally also seen in umbilicus. Secondary ribs cross the venter with slight forward-directed convexity. Ribs originate rursiradiately at umbilical suture (Fig. 15E, F). Ribbing density is moderate to dense. Umbilical wall short, distinct, and steep. Constrictions present, at least one per whorl.

Measurements

No measurements are available

Composition:

aragoniteo

Environment:

marinec

Locomotion:

fast-movingo

Life habit:

nektonico

Diet:

carnivoreo

Vision:

well-developedc

Created:

2005-01-28 02:27:03

Modified:

2009-10-08 14:14:55

Source: o = order, c = class

References: Kiessling 2003, Kiessling 2004

Age range: Middle Oxfordian or 161.20000 to 155.70000 Ma

Collections (6 total)

Time interval	Ma	Country or state	Original ID and collection number
Early/Lower Oxfordian	161.2 - 155.7	France	Perisphinctes chloroolithicus (12286 12287)
Middle Oxfordian	161.2 - 155.7	Germany	Perisphinctes chloroolithicus (62304)
Middle Oxfordian	161.2 - 155.7	France	Perisphinctes chloroolithicus (12288 12291)
Middle Oxfordian	161.2 - 155.7	United Kingdom	Perisphinctes chloroolithicus (86019)