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Ceratopsis
Taxonomy
Ceratopsis was named by Ulrich (1894) [Sepkoski's age data: O Llvi-u O Cara-u Sepkoski's reference number: 736,855]. It is not extant. Its type is Beyrichia chambersi.
It was assigned to Quadrijugatoridae by Benson et al. (1961); to Tetradellinae by Vannier (1987); and to Palaeocopida by Sepkoski (2002).
It was assigned to Quadrijugatoridae by Benson et al. (1961); to Tetradellinae by Vannier (1987); and to Palaeocopida by Sepkoski (2002).
Species
Synonyms
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Synonymy list
Year | Name and author |
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1894 | Ceratopsis Ulrich |
1961 | Ceratopsis Benson et al. p. Q151 |
1987 | Ceratopsis Vannier pp. 726 - 727 |
2002 | Ceratopsis Sepkoski |
2002 | Hastatellina Sepkoski |
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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. †Ceratopsis Ulrich 1894
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†Ceratopsis chambersi Miller 1874
†Ceratopsis oculifera Hall 1871
Invalid names: Hastatellina [synonym]
Diagnosis
Reference | Diagnosis | |
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J. Vannier 1987 | Ostracodes de la sous-famille Tetradellinae SWARTZ, 1936, g6n6ralement quadrilob6s. Obsolescence possible des sillons S 1 et $3, voire de $2. Fusion fr6quente de L3 et L4. L1 prolong6 par un processus ant6rodorsal de forme plus ou moins h6lico~'dale (<< sperum >> ou << speral process >> sensu Jaanusson, 1957), bord6 sur toute sa longueur ou non par une rang6e de lamelles (fimbriae) ou d'6pines. Connexion ventrale des lobes sous forme d'un 6pais bourrelet histial arrondi ou saillant (<< ridge-like histial flange >>). Collerette v61aire 6troite et concave chez les tecnomorphes, tr~s 61argie chez les h6t6romorphes et formant un dolon de taille variable le long du bord ant6rieur et/ou ventral des valves. Surface des valves g6n6ralement lisse mais parfois r6ticul6e. |
Measurements
No measurements are available
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Source: o = order, c = class | |||||
References: Kiessling 2004, Alvarez et al. 2008 |
Age range: base of the Dobrotivian to the top of the Richmondian or 459.00000 to 445.50000 Ma
Collections (54 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Middle Ordovician | USA (Kentucky) | C. sp. (10745) | |
Middle Ordovician - Late/Upper Ordovician | USA (Kentucky) | C. sp. (10751) | |
Letna - Harnagian | Czech Republic | Hastatellina sp. (3861) | |
Dobrotivian - Berounian | France (Orne) | C. sp. (20871) | |
Sandbian | Czech Republic | Hastatellina sp. (3856) | |
Bohdalec | Czech Republic | Hastatellina sp. (3874) | |
Vinice - Late/Upper Ordovician | Czech Republic | Hastatellina sp. (3863) | |
Zahorany - Late/Upper Ordovician | Czech Republic | Hastatellina sp. (3865) | |
Kirkfieldian | USA (Iowa) | C. humilinoda, C. quadrifida (23214 23215) | |
Kirkfieldian - Shermanian | USA (Minnesota) | C. humilinoda, C. quadrifida (23177) | |
Rocklandian | USA (Iowa) | C. humilinoda (23203 23207) | |
Rocklandian | USA (Minnesota) | C. chambersi (219965) | |
Rocklandian - Shermanian | USA (Minnesota) | C. humilinoda, C. quadrifida (23174) C. quadrifida (23124) C. quadrifida, C. chambersi (23148) | |
Shermanian | Canada (Northwest Territories) | C. sp. (25313 25314 25315 25316 25317 25318) | |
Shermanian | USA (Iowa) | C. humilinoda, C. quadrifida (23217 23219) | |
Shermanian | USA (Tennessee) | C. intermedia (5351) | |
Wildernessian | Canada (Northwest Territories) | C. quadrifida (25860 26966 26967 26968 102244 102245 102247 102250) | |
Chatfieldian | USA (Kentucky) | Beyrichia chambersi (37834) C. intermedia (34546 34549 34558 34563) C. sp., C. intemedia (34559) C. sp., C. intermedia, C. oculifera (34547 34561) | |
Edenian | USA (Virginia) | C. chambersi (5397) | |
Edenian | USA (Pennsylvania) | C. chambersi (34895) | |
Edenian | Canada (Northwest Territories) | C. quadrifida (24636) | |
Edenian | USA (Ohio) | C. chambersi (162345) | |
Edenian | USA (Kentucky) | C. chambersi (162346) | |
Maysvillian | USA (Iowa) | C. trilobis (23237) | |
Maysvillian | USA (Ohio) | C. oculifera (162343 173048) | |
Maysvillian | Canada (Quebec) | C. oculifera (173128) | |
Kralodvorian - Rawtheyan | Czech Republic | Hastatellina sp. (3875) | |
Richmondian | Canada (Nunavut) | C. quadrifida (24176) | |
Richmondian | USA (Iowa) | C. trilobis (23238) |