PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Hemitissotia

Cephalopoda - Ammonoida - Vascoceratidae

Taxonomy

Hemitissotia was named by Peron (1897) [Sepkoski's age data: K Coni].

It was assigned to Hemitissotiinae by Parnes (1964); to Pseudotissotiidae by Hyatt (1903), Kennedy (1995); to Pseudotissotiinae by Wright et al. (1996); and to Ammonoidea by Sepkoski (2002).

Species

H. alpina, H. batnensis, H. cazini, H. ceadouroensis (syn. H. celtiberica), H. dullai, H. galleppei, H. lenticeratiformis, H. morreni, H. randoi, H. tissotiaeformis, H. turzoi (syn. Plesiotissotia cantabria), Plesiotissotia michaleti

Synonyms

Plesiotissotia was named by Peron (1897) [Sepkoski's age data: K Coni-l].

It was synonymized subjectively with Hemitissotia by Chancellor et al. (1994), Kennedy (1995).

It was assigned to Pseudotissotiidae by Hyatt (1903); to Hemitissotiinae by Parnes (1964); and to Ammonoidea by Sepkoski (2002).
Allotissotia was named by Parnes (1964).

It was synonymized subjectively with Hemitissotia by Chancellor et al. (1994), Kennedy (1995).

It was assigned to Hemitissotiinae by Parnes (1964).

Synonymy list

Year	Name and author
1897	Hemitissotia Peron p. 73
1897	Plesiotissotia Peron p. 79
1903	Hemitissotia Hyatt p. 38
1903	Plesiotissotia Hyatt p. 41
1964	Hemitissotia Parnes p. 13
1964	Plesiotissotia Parnes p. 13
1964	Allotissotia Parnes p. 14
1995	Hemitissotia Kennedy p. 412
1996	Hemitissotia Wright et al. p. 179
2002	Hemitissotia Sepkoski
2002	Plesiotissotia Sepkoski

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

Rank	Name	Author
subclass	Coleoidea	Bather 1888
order	Ammonoida	(Haeckel 1866)
order	Ammonitida	Haeckel 1866
suborder	Ammonitina	Hyatt 1889
superfamily	Acanthoceratoidea	(de Grossouvre 1894)
family	Vascoceratidae	Douvillé 1912
subfamily	Pseudotissotiinae	(Hyatt 1903)
genus	Hemitissotia	Peron 1897

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. †Hemitissotia Peron 1897

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†Hemitissotia alpina Wiedmann 1979

†Hemitissotia batnensis Peron 1897

†Hemitissotia cazini Peron 1897

†Hemitissotia ceadouroensis Choffat 1898

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Invalid names: Hemitissotia celtiberica Wiedmann 1978 [synonym]

†Hemitissotia dullai Karrenberg 1935

†Hemitissotia galleppei Pervinquiere 1935

†Hemitissotia lenticeratiformis Wiedmann 1978

†Hemitissotia morreni Coquand 1862

†Hemitissotia randoi Gerth 1961

†Hemitissotia tissotiaeformis Peron 1897

†Hemitissotia turzoi Karrenberg 1935

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Invalid names: Plesiotissotia cantabria Karrenberg 1935 [synonym]

Invalid names: Allotissotia Parnes 1964 [synonym], Plesiotissotia Peron 1897 [synonym]

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	29	47.5	23.0	81.0	50.0	14.1
shell diameter	29	92.3	46.0	154.0	96.0	27.7
shell inflation	29	11.0	4.50	27.0	10.0	5.75

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 2004, Kiessling 2003

Age range: base of the Late/Upper Turonian to the top of the Early/Lower Santonian or 93.90000 to 83.60000 Ma

Collections (23 total)

Time interval	Ma	Country or state	Original ID and collection number
Late/Upper Turonian	93.9 - 89.8	Israel	H. morreni (178935)
Late/Upper Turonian	93.9 - 89.8	Egypt	H. sp. (150923)
Late/Upper Turonian	93.9 - 89.8	Tunisia	H. morreni (88857 88858 88861)
Coniacian	89.8 - 85.7	Israel	Allotissotia geleppei (69845)
Coniacian	89.8 - 85.7	Spain	H. cazini (66965) H. cazini, H. turzoi (66964)
Early/Lower Coniacian	89.8 - 85.7	Egypt	Allotissotia geleppei (178936)
Late/Upper Coniacian	89.8 - 85.7	Spain	H. ceadouroensis (152349 152361 152362 152363 152364) H. ceadouroensis, H. turzoi (152365) H. ceadouroensis, H. turzoi, H. dullai (152360) H. turzoi (152367) H. turzoi, H. dullai, H. lenticeratiformis (152366)
Late/Upper Coniacian	89.8 - 85.7	Spain (Catalunia)	H. sp. (162691)
Late/Upper Coniacian - Early/Lower Santonian	89.8 - 83.6	Austria	H. alpina (173322)
Late/Upper Coniacian - Santonian	89.8 - 83.6	Spain	H. turzoi, H. lenticeratiformis (66968)
Middle Santonian	85.7 - 83.6	France	H. randoi (179605 179665)