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Perisphinctes (Dichotomosphinctes)

Cephalopoda - Ammonitida - Perisphinctidae

Taxonomy
Dichotomosphinctes was named as a genus. It is not extant.

It was reranked as Perisphinctes (Dichotomosphinctes) by Imlay (1961), Schlegelmilch (1994) and Sato and Yamada (2014).

It was assigned to Ammonoidea by Sepkoski (2002); and to Perisphinctes by Imlay (1961), Schlegelmilch (1994) and Sato and Yamada (2014).

Subtaxa
Dichotomosphinctes stenocyclus, Perisphinctes (Dichotomosphinctes) aeneas, Perisphinctes (Dichotomosphinctes) antecedens, Perisphinctes (Dichotomosphinctes) bouranensis, Perisphinctes (Dichotomosphinctes) elisabethae, Perisphinctes (Dichotomosphinctes) elisabethaeformis, Perisphinctes (Dichotomosphinctes) gamelai, Perisphinctes (Dichotomosphinctes) germaini, Perisphinctes (Dichotomosphinctes) jacki, Perisphinctes (Dichotomosphinctes) kiritaniensis, Perisphinctes (Dichotomosphinctes) lehmani, Perisphinctes (Dichotomosphinctes) montfalconensis, Perisphinctes (Dichotomosphinctes) muhlbachi (syn. Perisphinctes durangensis), Perisphinctes (Dichotomosphinctes) obliqueplicatus, Perisphinctes (Dichotomosphinctes) rotiformis, Perisphinctes (Dichotomosphinctes) subhelenae, Perisphinctes (Dichotomosphinctes) tizianiformis, Perisphinctes (Dichotomosphinctes) vermicularis, Perisphinctes (Dichotomosphinctes) wartae
Species lacking formal opinion data
Dichotomosphinctes decaryi, Dichotomosphinctes martini, Dichotomosphinctes sikilyensis, Perisphinctes A, Perisphinctes B, Perisphinctes africanus, Perisphinctes alatus, Perisphinctes andelotensis, Perisphinctes andium, Perisphinctes anguiculus, Perisphinctes buckmani, Perisphinctes buckmanni, Perisphinctes crassissimus, Perisphinctes dacquei, Perisphinctes densecostatus, Perisphinctes dorsoplanus, Perisphinctes eucostatus, Perisphinctes luciaeformis, Perisphinctes mairei-matheyi, Perisphinctes malinowskae, Perisphinctes panderi, Perisphinctes patturatensis, Perisphinctes pickeringius, Perisphinctes polygyratus, Perisphinctes polygyratus, Perisphinctes praestenocyclus, Perisphinctes progeron, Perisphinctes pumilus, Perisphinctes quadratus, Perisphinctes quadratus, Perisphinctes roedereri, Perisphinctes scythicus, Perisphinctes siemiradzkii, Perisphinctes siemirazkii

Synonymy list
YearName and author
1961Perisphinctes (Dichotomosphinctes) Imlay pp. D-24
1994Perisphinctes (Dichotomosphinctes) Schlegelmilch p. 58
2002Dichotomosphinctes Sepkoski
2014Perisphinctes (Dichotomosphinctes) Sato and Yamada p. 41

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderAmmonitida
suborderAmmonitinaHyatt 1889
superfamilyPerisphinctoidea(Steinman 1890)
familyPerisphinctidaeSteinmann 1890
subfamilyPerisphinctinaeSteinmann 1890
genusPerisphinctes()
subgenusDichotomosphinctes

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
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: base of the Early/Lower Oxfordian to the top of the Kimmeridgian or 161.20000 to 152.10000 Ma

Collections (60 total)


Time interval Ma Country or state Original ID and collection number
Callovian - Oxfordian166.1 - 157.3India Perisphinctes jacki (68644 68647)
Oxfordian163.5 - 157.3United Kingdom (Scotland) Perisphinctes spp. (163721)
Oxfordian163.5 - 157.3Madagascar Dichotomosphinctes falculae, Dichotomosphinctes decaryi, Dichotomosphinctes wartae, Dichotomosphinctes antecedens (98213) Dichotomosphinctes germaini (98192) Dichotomosphinctes martini, Dichotomosphinctes rotoides, Dichotomosphinctes wartae (98190) Dichotomosphinctes subrota (98177)
Oxfordian163.5 - 157.3Spain Perisphinctes ouatius, Perisphinctes sp., Perisphinctes wartae, Perisphinctes antecedens, Perisphinctes elisabethae (67866) Perisphinctes sp. (67867 142573) Perisphinctes sp., Perisphinctes montfalconensis (142572)
Oxfordian - Kimmeridgian163.5 - 152.1USA (California) Perisphinctes elisabethaeformis (192804)
Early/Lower Oxfordian161.2 - 155.7France Perisphinctes episcopalis, Perisphinctes laisinensis, Perisphinctes montfalconensis (12285) Perisphinctes laisinensis, Perisphinctes episcopalis, Perisphinctes montfalconensis (12284) Perisphinctes rotoides, Perisphinctes antecedens (12287) Perisphinctes rotoides, Perisphinctes montfalconensis, Perisphinctes antecedens (12286)
Early/Lower Oxfordian161.2 - 155.7Madagascar (Atsimo-Andrefana) Dichotomosphinctes rotiformis (234151)
Late/Upper Oxfordian161.2 - 155.7Madagascar (Atsimo-Andrefana) Dichotomosphinctes decaryi, Orionoides lehmani (234238) Dichotomosphinctes falculae, Dichotomosphinctes antecedens, Orionoides lehmani (234237) Dichotomosphinctes martini, Dichotomosphinctes rotoides, Dichotomosphinctes wartae (234262)
Late/Upper Oxfordian161.2 - 155.7Germany (Lower Saxony) Dichotomosphinctes bifurcatoides (23910)
Middle Oxfordian161.2 - 155.7Germany Perisphinctes antecedens (62304) Perisphinctes elizabethae (62305) Perisphinctes wartae (62306)
Middle Oxfordian161.2 - 155.7Japan Perisphinctes kiritaniensis (182856 182864 182867)
Middle Oxfordian161.2 - 155.7India (Gujarat) Dichotomosphinctes sp. (46551)
Middle Oxfordian161.2 - 155.7United Kingdom Perisphinctes antecedens (86020) Perisphinctes buckmani, Perisphinctes antecedens (86019)
Middle Oxfordian161.2 - 155.7Italy (Trapani) Perisphinctes sp. (36817)
Middle Oxfordian161.2 - 155.7Spain Perisphinctes luciaeformis (142574 142576 142577) Perisphinctes vermicularis (142579) Perisphinctes wartae (142582 142583 142584)
Middle Oxfordian161.2 - 155.7France Dichotomosphinctes elizabethae (62708) Perisphinctes antecedens (163585 163892) Perisphinctes luciae, Perisphinctes luciaeformis, Perisphinctes wartae, Perisphinctes antecedens, Perisphinctes vermicularis, Perisphinctes elisabethae, Perisphinctes elisabethaeformis (12291) Perisphinctes luciaeformis (12292) Perisphinctes lucieformis, Perisphinctes elisabethae (12982) Perisphinctes marnesiae (13148) Perisphinctes rotoides, Perisphinctes buckmani, Perisphinctes dobrogensis, Perisphinctes wartaeformis, Perisphinctes trichoplocus, Perisphinctes wartae, Perisphinctes antecedens, Perisphinctes vermicularis, Perisphinctes elisabethae (12288) Perisphinctes sp., Perisphinctes arkelli, Perisphinctes rotoides, Perisphinctes buckmanni (63455) Perisphinctes trichoplocus (12294)
Middle Oxfordian - Late/Upper Oxfordian161.2 - 155.7France Perisphinctes sp. (13116)
Late/Upper Oxfordian - Early/Lower Kimmeridgian161.2 - 150.8USA (California) Perisphinctes muhlbachi (192809 192845 192860) Perisphinctes sp. (192810 192833 192836)
Kimmeridgian157.3 - 152.1Ethiopia Perisphinctes stenocyclus (94585)
Kimmeridgian157.3 - 152.1Madagascar (Melaky) Dichotomosphinctes roubyanus (234269)
Kimmeridgian157.3 - 152.1Madagascar Dichotomosphinctes roubyanus (98167) Dichotomosphinctes stenocyclus (234268)
Early/Lower Kimmeridgian155.7 - 150.8Madagascar Dichotomosphinctes sikilyensis (234273)