PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Olcostephanus

Cephalopoda - Ammonitida - Olcostephanidae

Taxonomy

Olcostephanus was named by Neumayr (1875) [Sepkoski's age data: K Vala-u K Haut-l]. It is the type genus of Olcostephanidae.

It was reranked as Ammonites (Olcostephanus) by Weerth (1884).

It was assigned to Ammonites by Weerth (1884); to Ammonoidea by Stanton (1895), Imlay (1960), Sepkoski (2002); and to Olcostephaninae by Böse (1923), Imlay and Jones (1970), Avram and Gradinaru (1993), Reboulet (1996), Aguirre-Urreta and Rawson (1999), Arkadiev et al. (2000), Aguirre-Urreta and Rawson (2001), Vasicek (2002), Lukeneder (2004), Klein (2005), Mourgues et al. (2015), Pandey and Pathak (2017), Ovando-Figueroa et al. (2024).

Species

Astieria bangei, Astieria neohispanica, Astieria raricostata, Astieria zacatecana, Holcostephanus (Astieria) josephinus, Maderia casitensis, Maderia coahuilensis, Maderia marcoensis, Maderia marcosensis, O. (Jeannoticeras), O. (Olcostephanus), O. (Viluceras), O. astierianus, O. atherstoni (syn. Astieria symonensis, Holcostephanus modderensis, Rogersites douvillei, Taraisites neoleonense, Astieria catulloi, Holcostephanus wilmanae, Ammonites schenki, Rogersites sphaeroidalis, Holcostephanus (Astieria) guebhardi, Astieria imbricata, Rogersites filifer, Rogersites curvicostata, Astieria astieriformis, Ammonites bainii, O. coahuilensis, Rogersites bakeri, Holcostephanus auritus, Holcostephanus rogersi, Astieria curacoensis, Astieria sudandina, Holcostephanus midas, Rogersites prorsiradiatus, Astieria leptoplana, Rogersites otoitoides, Astieria actinota, Rogersites tenuicostatus, O. quadriradiatus), O. delicatecostatus, O. detonii, O. paucicostatus, O. pecki, O. popenoei, O. sanlazarensis, Subastieria balkanica, Subastieria inordinata, Subastieria sulcosae, Subastieria sulcosus, Taraisites bosei

Species lacking formal opinion data

O. andartae, O. astieri, O. astieri, O. carpathicus, O. copiapoensis, O. drumensis, O. hispanicus, O. laticostata, O. psilostomus, O. stephanophorus

Synonyms

Rogersites was named by Spath (1924).

It was synonymized subjectively with Olcostephanus by Klein (2005), Mourgues et al. (2015).

It was assigned to Holcodiscidae by Vasicek (2002).
Astieria was named by Pavlow (1892).

It was reranked as Olcostephanus (Astieria) by Whiteaves (1893); it was reranked as Holcostephanus (Astieria) by Killian (1902) and Killian (1902); it was synonymized subjectively with Olcostephanus by Klein (2005), Mourgues et al. (2015).

It was assigned to Olcostephanus by Whiteaves (1893); and to Holcostephanus by Killian (1902) and Killian (1902).
Satoites was named by Cantú-Chapa (1966).

It was synonymized subjectively with Olcostephanus by Klein (2005), Mourgues et al. (2015).
Lemurostephanus was named by Thieuloy (1977).

It was reranked as Olcostephanus (Lemurostephanus) by Thieuloy (1977); it was synonymized subjectively with Olcostephanus by Klein (2005), Mourgues et al. (2015).

It was assigned to Olcostephanus by Thieuloy (1977).
Taraisites was named by Cantú-Chapa (1966). Its type is Taraisites bosei.

It was synonymized subjectively with Olcostephanus by Mourgues et al. (2015).

It was assigned to Olcostephaninae by Klein (2005).
Subastieria was named by Spath (1923) [Sepkoski's age data: K Haut-l]. Its type is Olcostephanus sulcosus.

It was reranked as Olcostephanus (Subastieria) by Wiedmann and Dieni (1968); it was synonymized subjectively with Olcostephanus by Mourgues et al. (2015).

It was assigned to Olcostephanus by Wiedmann and Dieni (1968); to Olcostephaninae by Avram and Gradinaru (1993); and to Ammonoidea by Sepkoski (2002).
Maderia was named by Imlay (1938).

It was synonymized subjectively with Olcostephanus by Mourgues et al. (2015).

It was assigned to Olcostephanidae by Imlay (1938).
Holcostephanus was named by Sayn (1889).

It was synonymized subjectively with Olcostephanus by Wright et al. (1996).

Synonymy list

Year	Name and author
1875	Olcostephanus Neumayr p. 922
1884	Ammonites (Olcostephanus) Weerth
1889	Holcostephanus Sayn p. 679
1892	Astieria Pavlow p. 471
1893	Olcostephanus (Astieria) Whiteaves pp. 442-444
1895	Olcostephanus Stanton p. 77
1902	Holcostephanus (Astieria) Killian p. 866
1923	Holcostephanus Böse
1923	Subastieria Spath
1924	Rogersites Spath
1938	Maderia Imlay
1960	Olcostephanus Imlay p. 202
1966	Satoites Cantú-Chapa p. 16
1966	Taraisites Cantú-Chapa p. 16
1968	Olcostephanus (Subastieria) Wiedmann and Dieni
1970	Olcostephanus Imlay and Jones p. B3
1977	Olcostephanus (Lemurostephanus) Thieuloy
1977	Lemurostephanus Thieuloy p. 432
1993	Olcostephanus Avram and Gradinaru p. 676
1993	Subastieria Avram and Gradinaru p. 676
1996	Olcostephanus Reboulet p. 149
1999	Olcostephanus Aguirre-Urreta and Rawson p. 348
2000	Olcostephanus Arkadiev et al. p. 101
2001	Olcostephanus Aguirre-Urreta and Rawson p. 768
2002	Olcostephanus Sepkoski
2002	Subastieria Sepkoski
2002	Olcostephanus Vasicek p. 189
2002	Rogersites Vasicek p. 189
2004	Olcostephanus Lukeneder p. 50
2005	Olcostephanus Klein p. 71
2005	Taraisites Klein p. 107
2015	Olcostephanus Mourgues et al. p. 220
2017	Olcostephanus Pandey and Pathak p. 245
2024	Olcostephanus Ovando-Figueroa et al. p. 4

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

Rank	Name	Author
subclass	Ammonoidea	()
order	Ammonitida	Haeckel 1866
suborder	Olcostephanina	Haug 1910
superfamily	Olcostephanoidea	(Haug 1910)
family	Olcostephanidae	Haug 1910
subfamily	Olcostephaninae	Haug 1910
genus	Olcostephanus	Neumayr 1875

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. †Olcostephanus Neumayr 1875

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Subg. †Olcostephanus (Jeannoticeras) Thieuloy 1965

†Olcostephanus (Jeannoticeras) agrioensis Aguirre-Urreta and Rawson 2001

†Olcostephanus (Jeannoticeras) jeannoti d'Orbigny 1841

Subg. †Olcostephanus (Olcostephanus) Neumayr 1875

†Olcostephanus (Olcostephanus) balestrai Rodighiero 1919

†Olcostephanus (Olcostephanus) boesei Riedel 1938

†Olcostephanus (Olcostephanus) densicostatus Wegner 1909

†Olcostephanus (Olcostephanus) fascigerus Spath 1939

†Olcostephanus (Olcostephanus) globosus Spath 1939

†Olcostephanus (Olcostephanus) laticosta Gerth 1925

Invalid names: Holcostephanus leanzai Giovine 1950 [synonym]

†Olcostephanus (Olcostephanus) mingrammi Leanza 1958

†Olcostephanus (Olcostephanus) mitreanus d'Orbigny 1850

Invalid names: Astieria detonii Rodighiero 1919 [synonym], Olcostephanus wynnei Spath 1939 [synonym]

†Olcostephanus (Olcostephanus) nicklesi Wiedmann and Dieni 1968

Invalid names: Olcostephanus (Lemurostephanus) sanctifirminensis Thieuloy 1977 [synonym], Olcostephanus (Olcostephanus) thieuloyi Autran 1993 [synonym]

†Olcostephanus (Olcostephanus) sakalavensis Besairie 1936

Invalid names: Olcostephanus victoris Spath 1939 [synonym]

†Olcostephanus (Olcostephanus) salinarius Spath 1939

†Olcostephanus (Olcostephanus) sayni Kilian 1895

†Olcostephanus (Olcostephanus) tenuituberculatus Bulot 1990

†Olcostephanus (Olcostephanus) variegatus Paquier 1900

Subg. †Olcostephanus (Viluceras) Aguirre-Urreta and Rawson 1999

†Olcostephanus (Viluceras) araucanus Leanza 1958

†Olcostephanus (Viluceras) duraznoensis Aguirre-Urreta and Rawson 1999

†Olcostephanus (Viluceras) permolestus Leanza 1958

†Olcostephanus astierianus d'Orbigny 1840

†Olcostephanus atherstoni Sharpe 1856

Invalid names: Ammonites bainii Sharpe 1856 [synonym], Ammonites schenki Oppel 1863 [synonym], Astieria actinota Baumberger 1908 [synonym], Astieria astieriformis Böse 1923 [synonym], Astieria catulloi Rodighiero 1919 [synonym], Astieria curacoensis Weaver 1931 [synonym], Astieria imbricata Baumberger 1908 [synonym], Astieria leptoplana Baumberger 1908 [synonym], Astieria sudandina Windhausen 1931 [synonym], Astieria symonensis Böse 1923 [synonym], Holcostephanus (Astieria) guebhardi Killian 1902 [synonym], Holcostephanus auritus Leanza 1944 [synonym], Holcostephanus midas Leanza 1944 [synonym], Holcostephanus modderensis Kitchin 1908 [synonym], Holcostephanus rogersi Kitchin 1908 [synonym], Holcostephanus wilmanae Kitchin 1908 [synonym], Olcostephanus coahuilensis Imlay 1938 [synonym], Olcostephanus quadriradiatus Imlay 1938 [synonym], Rogersites bakeri Imlay 1937 [synonym], Rogersites curvicostata Besairie 1936 [synonym], Rogersites douvillei Besairie 1932 [synonym], Rogersites filifer Imlay 1937 [synonym], Rogersites otoitoides Spath 1930 [synonym], Rogersites prorsiradiatus Imlay 1937 [synonym], Rogersites sphaeroidalis Spath 1930 [synonym], Rogersites tenuicostatus Imlay 1937 [synonym], Taraisites neoleonense Cantu-Chapa 1966 [synonym]

†Olcostephanus delicatecostatus Haas 1960

†Olcostephanus detonii Rodighiero 1919

†Olcostephanus paucicostatus Imlay 1937

†Olcostephanus pecki Imlay 1960

†Olcostephanus popenoei Imlay 1960

†Olcostephanus sanlazarensis Imlay 1937

Invalid names: Astieria Pavlow 1892 [objective synonym], Holcostephanus Sayn 1889 [synonym], Lemurostephanus Thieuloy 1977 [synonym], Maderia Imlay 1938 [synonym], Rogersites Spath 1924 [synonym], Satoites Cantú-Chapa 1966 [synonym], Subastieria Spath 1923 [synonym], Taraisites Cantú-Chapa 1966 [synonym]

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	40	20.4	5.70	68.0	20.0	14.7
shell diameter	40	51.9	15.0	145.0	50.5	32.4
shell inflation	40	16.7	4.50	53.0	17.4	10.6

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 Late/Upper Jurassic to the top of the Early/Lower Hauterivian or 161.50000 to 125.77000 Ma

Collections (518 total)

Time interval	Ma	Country or state	Original ID and collection number
Late/Upper Jurassic	161.5 - 143.1	Argentina (Mendoza)	Astieria subandina (137144)
Berriasian	143.1 - 137.05	Spain (Murcia)	O. drumensis (191948 191949 191950 191951 191952)
Berriasian	143.1 - 137.05	Spain	O. drumensis (64986 64988 64993 64999 65004 65292 65293 65294 65295 65317 65319)
Late/Upper Berriasian - Valanginian	139.1 - 132.6	Colombia	Subastieria sulcosae (83876)
Early/Lower Valanginian	137.05 - 132.6	Chile (Copiapó)	O. atherstoni (223017) O. atherstoni, O. densicostatus (223020)
Early/Lower Valanginian	137.05 - 132.6	France	O. sp. (201052 201053 201058 202400 202401 202404 202405 202408 202409 202410 202416 202871 202872 202873 202875 202877 202881 202882 202886 202887 202890 202891 202892 202894 202979) O. sp., O. tenuituberculatus (201054 201894 202406 202407 202888 202893 202978) O. tenuituberculatus (202417)
Early/Lower Valanginian	137.05 - 132.6	Chile	O. atherstoni (67493 200814 200815 200816)
Early/Lower Valanginian	137.05 - 132.6	Ukraine	O. globosus (183273)
Early/Lower Valanginian	137.05 - 132.6	India	O. fascigerus (182659)
Early/Lower Valanginian	137.05 - 132.6	Hungary	O. drumensis, O. sp., O. guebhardi (111308) O. stephanophorus, O. drumensis, O. sp. 1 (111307)
Early/Lower Valanginian	137.05 - 132.6	Mexico (Zacatecas)	O. atherstoni (232787 235604 235606 235607) O. n. sp. 1 (235597 235601) O. n. sp. 1, O. n. sp. 2 (235599) O. n. sp. 1, O. tenuituberculatus (235592 235593 235595) O. n. sp. 2 (235598) O. sp., O. atherstoni (232777)
Early/Lower Valanginian	137.05 - 132.6	Argentina (Mendoza)	O. curacoensis (44711)
Early/Lower Valanginian	137.05 - 132.6	Morocco	O. drumensis (65425) O. guebhardi (65428) O. stephanophorus, O. guebhardi (65429)
Early/Lower Valanginian	137.05 - 132.6	Italy	O. drumensis (65509 65510 65513) O. tenuituberculatus (65521)
Early/Lower Valanginian	137.05 - 132.6	France (Provence-Alpes-Côte d'Azur)	O. guebhardi (68272)
Late/Upper Valanginian	137.05 - 132.6	Hungary	O. densicostatus (86377 86379 86382 86383 86384) O. nicklesi, O. densicostatus (86378 86380 86381) O. sp., O. guebhardi (111311 111316)
Late/Upper Valanginian	137.05 - 132.6	Italy	O. astierianus (12772) O. balestrai (65594 65596) O. catulloi (65531) O. detonii, O. nicklesi (65592) O. nicklesi (65559 65560 65591) O. sp. (65869) O. tenuituberculatus (65534)
Late/Upper Valanginian	137.05 - 132.6	South Africa (Eastern Cape)	O. sp. (117446)
Late/Upper Valanginian	137.05 - 132.6	Slovakia	O. balestrai, O. densicostatus (64711)
Late/Upper Valanginian	137.05 - 132.6	Chile (Copiapó)	O. atherstoni, O. permolestus, O. densicostatus (223057) O. curacoensis (222928 222940) O. curacoensis, O. copiapoensis (222939 223026)
Late/Upper Valanginian	137.05 - 132.6	Argentina	O. atherstoni (65438 65440 65449 65450 65453) O. permolestus (37761 37779 37780 37781 37782 37783 37784 37785) O. permolestus, O. araucanus (37763) O. permolestus, O. duraznoensis (157546) O. sp. (37758 37759 37760 37762 37765 37767 37787 65441 65454 65457)
Late/Upper Valanginian	137.05 - 132.6	France	O. balestrai (202437 202785) O. balestrai, O. nicklesi (202516) O. densicostatus (202551 202567 202819) O. nicklesi (202515 202538 202794 202797) O. sp. (65897 65899 65902 66024 66025 66027 66028 202424 202425 202426 202427 202434 202436 202507 202508 202511 202513 202518 202520 202522 202525 202526 202535 202536 202539 202540 202542 202544 202545 202547 202548 202553 202554 202569 202685 202686 202687 202688 202689 202691 202693 202694 202695 202696 202698 202699 202760 202761 202762 202771 202777 202779 202787 202795 202796 202799 202801 202803 202808 202811 202814 202821 202826 202828 202829 202831 202832 202848 202849 202850 202980 202981 202982 202985) O. sp., O. balestrai (202435 202504 202506 202537 202543 202780 202793 202804) O. sp., O. densicostatus (202549 202550 202552 202556 202557 202558 202559 202560 202561 202562 202563 202564 202565 202566 202568 202570 202571 202572 202573 202817 202824 202825 202827 202851) O. sp., O. nicklesi (202521 202534 202541 202790) O. sp., O. nicklesi, O. densicostatus (202546 202555) O. sp., O. tenuituberculatus (202983) O. tenuituberculatus (202428)
Late/Upper Valanginian	137.05 - 132.6	Austria	O. densicostatus (55585) O. guebhardi (64831) O. sp. (69108 69109 69111) O. sp., O. densicostatus (69120)
Late/Upper Valanginian	137.05 - 132.6	South Africa	O. sp. (65286)
Late/Upper Valanginian	137.05 - 132.6	India	O. sp., O. sakalavensis, O. salinarius (182660)
Late/Upper Valanginian	137.05 - 132.6	Romania	O. catulloi, Subastieria balkanica, Subastieria inordinata (69198)
Late/Upper Valanginian	137.05 - 132.6	Colombia	O. delicatecostatus, O. bosei (83873) Subastieria sulcosae (83875)
Late/Upper Valanginian	137.05 - 132.6	Tunisia	O. densicostatus (205372) O. sp. (205367 205369 205375 205400) O. sp., O. densicostatus (205370 205371 205373)
Late/Upper Valanginian	137.05 - 132.6	Poland (Gmina Tomaszów Mazowiecki)	O. densicostatus (192525)
Late/Upper Valanginian	137.05 - 132.6	Mexico	O. balestrai (74353) O. colorinensis (74352 74354 74355) O. colorinensis, O. balestrai (74351)
Late/Upper Valanginian	137.05 - 132.6	Argentina (Neuquen)	O. duraznoensis (37778)
Late/Upper Valanginian	137.05 - 132.6	Portugal	O. sp. (65676)
Late/Upper Valanginian	137.05 - 132.6	Morocco	O. balestrai (65432) O. guebhardi (65430)
Late/Upper Valanginian	137.05 - 132.6	France (Ain)	O. sp. (240098 240102)
Late/Upper Valanginian	137.05 - 132.6	Chile	O. permolestus (67494)
Late/Upper Valanginian	137.05 - 132.6	France (Rhône-Alpes)	O. nicklesi, O. densicostatus (104753)
Late/Upper Valanginian	137.05 - 132.6	Honduras	O. spp. (169241)
Valanginian	137.05 - 132.6	Chile (Copiapó)	O. atherstoni (223614) O. sp. (223616)
Valanginian	137.05 - 132.6	Mexico (Tamaulipas)	Rogersites filfer (2132) Rogersites sp. (2130)
Valanginian	137.05 - 132.6	Spain	O. drumensis (65007 65014 65018 65296 65297 65298 65301 65302 65304 65305 65307 65324 65329 65330 65332 65333)
Valanginian	137.05 - 132.6	Mexico (Durango)	Astieria astieri, Astieria neohispanica (87609) Astieria astieriformis (87612) Astieria astieriformis, Astieria bangei (87613) Astieria raricostata (87614)
Valanginian	137.05 - 132.6	Poland	Astieria sayni, Astieria bachelardi (2097)
Valanginian	137.05 - 132.6	Chile (Huasco)	O. sp. (223678)
Valanginian	137.05 - 132.6	Argentina	O. atherstoni (37725 37726) O. duraznoensis (37752 37753 37754) O. permolestus (37333 37741 37742 37743)
Valanginian	137.05 - 132.6	Mexico (Zacatecas)	Astieria psilostoma (87611)
Valanginian	137.05 - 132.6	USA (Washington)	O. pecki (83572)
Valanginian	137.05 - 132.6	Mexico (Nuevo Leon)	Rogersites bakeri, Rogersites paucicostatus, Rogersites filifer, Rogersites prorsiradiatus, Rogersites sanlazarensis, Rogersites tenuicostatus (2133)
Valanginian	137.05 - 132.6	Spain (Murcia)	O. drumensis (191953 191954 191955 191956 191957)
Valanginian	137.05 - 132.6	Morocco (Western High Atlas)	O. psilostomus (2062) O. psilostomus, O. atherstoni (2064) O. sayni-subfilosus, O. atherstoni, O. densicostatus (2063)
Valanginian	137.05 - 132.6	USA (California)	O. atherstoni (84888 224794 224834 225857)
Valanginian	137.05 - 132.6	Morocco (Agadir)	O. densicostatus (37844 38251 38271) O. drumensis (38254) O. guebhardi (37857 37858 37860 37862 37970 37971 38239 38240 38244 38245 38246 38264 38270 38287 38292) O. nicklesi (37974) O. sayni (37977) O. sp. (37842) O. tenuituberculatus (37973)
Valanginian	137.05 - 132.6	Portugal	O. sp., O. astieri (65675)
Valanginian	137.05 - 132.6	Mexico	Astieria astieri (65622)
Valanginian	137.05 - 132.6	USA (Oregon)	O. pecki (83573 83583 224884) O. pecki, O. popenoei (83584)
Valanginian	137.05 - 132.6	Czechia	O. psilostomus, O. sp. (2118)
Late/Upper Valanginian - Early/Lower Hauterivian	137.05 - 125.77	Tunisia	O. sp. (205402)
Late/Upper Valanginian - Early/Lower Hauterivian	137.05 - 125.77	France (Ain)	O. sp. juv. (240096)
Hauterivian - Valanginian	132.6 - 132.6	Antarctica (Alexander Island)	O. sp. (2076)
Hauterivian - Valanginian	132.6 - 132.6	Mexico (Coahuila)	Maderia marcoensis, Maderia coahuilensis (2158)
Early/Lower Hauterivian	132.6 - 125.77	Spain (Comunidad Valenciana)	O. sayni, O. jeannoti (169142)
Early/Lower Hauterivian	132.6 - 125.77	Spain	O. carpathicus (55528)
Early/Lower Hauterivian	132.6 - 125.77	France	O. andartae (61552 61553) O. andartae, O. variegatus (61554) O. astieri (61543) O. densicostatus (202864) O. jeannoti (61547 61548 61549 61550 202654 220964 220965 220966 220967 220969 220970 220971 220974 220975 220977) O. sayni (202622 220949 220951 220958 220961 220962) O. sayni, O. jeannoti (202616) O. sp. (66029 202574 202575 202576 202577 202580 202583 202584 202587 202588 202589 202591 202592 202595 202599 202600 202601 202602 202605 202606 202609 202614 202618 202621 202869) O. sp., O. densicostatus (202582 202585 202590 202593 202603 202856 202857 202866) O. sp., O. densistriatus (202578) O. sp., O. jeannoti (202620 202623 202624) O. sp., O. sayni (202604 202607 202608 202613 202619) O. sp., O. variegatus (202651) O. sp., O. variegatus, O. jeannoti (202650 202652) O. variegatus (202653)
Early/Lower Hauterivian	132.6 - 125.77	Italy	O. jeannoti (65865) O. sp. (65866 65867)
Early/Lower Hauterivian	132.6 - 125.77	Slovakia	O. detonii (83189) O. sp. (83190)
Early/Lower Hauterivian	132.6 - 125.77	Tunisia	O. sp. (205404 205405 205407 205634 205688 205689) O. sp., Jeannoticeras jeannoti (205635 205687)
Early/Lower Hauterivian	132.6 - 125.77	Argentina (Neuquen)	O. laticosta (50570) O. variegatus (50583)
Early/Lower Hauterivian	132.6 - 125.77	Colombia	O. astierianus, O. atherstoni (83872)
Early/Lower Hauterivian	132.6 - 125.77	Argentina	Astieria laticosta (61669) Holcostephanus leanzai (61715) O. laticosta (61589 61673 61692 61693 61694 61695 61696 61697 61698 61699 61702 61704 61706 61707 61708 61709 61710 61714 61716) O. laticosta, O. agrioensis (61701 61705 61713) O. laticosta, O. boesei, O. agrioensis (61703)
Early/Lower Hauterivian - Late/Upper Hauterivian	132.6 - 125.77	Tunisia	O. sp. (205693)
Hauterivian	132.6 - 125.77	Portugal	O. sp. (65729 65740)
Hauterivian	132.6 - 125.77	Colombia	O. astierianus (97672) O. boussingaultii (72030)
Hauterivian	132.6 - 125.77	Czechia	O. sp., O. psilostomus (2119) Rogersites atherstoni (66159)
Hauterivian	132.6 - 125.77	USA (Oregon)	O. pecki (83575)
Hauterivian	132.6 - 125.77	Poland	O. sp. (65214)
Hauterivian	132.6 - 125.77	Georgia	Rogersites atherstoni, O. jeannoti (2114)
Hauterivian	132.6 - 125.77	Spain	O. astieri (59971)
Hauterivian	132.6 - 125.77	Mexico (Nuevo Leon)	Rogersites filifer (2135)
Hauterivian	132.6 - 125.77	Mexico	Maderia casitensis (2161)
Hauterivian	132.6 - 125.77	Morocco (Agadir)	O. densicostatus (37868 37869) O. sayni (37877 37878 38253)
Hauterivian	132.6 - 125.77	France (Provence)	O. astierianus, O. sayni, O. jeannoti (56063) O. filosus, O. astierianus, O. jeannoti (56776) O. hispanicus, O. variegatus, O. sayni (56774) O. psilostomus, O. filosus, Subastieria sulcosa (56775) O. sp. (56055)
Late/Upper Hauterivian	132.6 - 125.77	Hungary	O. jeannoti (86362)
Hauterivian - Barremian	132.6 - 121.4	Colombia	O. laticostata (83874) Subastieria sulcosae (83877)