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Ptychaspididae

Trilobita - Asaphida - Ptychaspididae

Synonymy list
YearName and author
1924Ptychaspididae Raymond
1997Ptychaspididae Whittington et al. p. 301
2004Ptychaspididae Loch and Taylor p. 591
2011Ptychaspididae Adrain p. 108

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
RankNameAuthor
phylumArthropodaLatreille 1829
subphylumMandibulata
classTrilobitaWalch 1771
orderAsaphidaSalter 1864
familyPtychaspididaeRaymond 1924
familyPtychaspididaeRaymond 1924

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: low Mg calcitec
Composition 2: chitinc
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingo
Life habit: low-level epifaunalo
Diet: deposit feedero
Vision: well-developedf
Created: 2009-12-13 23:08:03
Modified: 2009-12-14 01:08:03
Source: f = family, o = order, c = class
References: Whittington et al. 1997, Aberhan et al. 2004, Hendy et al. 2009

Age range: base of the Payntonian to the top of the Warendian or 494.00000 to 478.60000 Ma

Collections (117 total)


Time interval Ma Country or state Original ID and collection number
Cambrian541.0 - 485.4USA (Wisconsin) Ptychaspis sp. (250)
Cambrian541.0 - 485.4USA (Montana) Macronoda sp., Promesus sp. (258)
Cambrian541.0 - 485.4USA (Utah) Euptychaspis sp., Idiomesus sp. (259)
Cambrian541.0 - 485.4USA (New York) Keithiella sp. (254)
Dolgellian501.0 - 485.4USA (Pennsylvania) Imlerella praecipita (62086 62094 62095)
Dolgellian501.0 - 485.4Canada (Quebec) Keithia subclavata (8934) Keithia subclavata, Idiomesus levisensis (8933)
Franconian501.0 - 485.4USA (Montana) Ptychaspis sp. (247)
Franconian501.0 - 485.4USA (South Dakota) Idiomesus granti (9744) Ptychaspis bullasa (9739) Ptychaspis miniscaensis (9734 9745 9747 9748 9751) Ptychaspis sp. (9740 9741 9743 9749)
Franconian501.0 - 485.4USA (Minnesota) Ptychaspis granulosa (62099 62100 62101 62102 62103 62104 62105 62106 62109) Ptychaspis miniscaensis (62112 62114 62116 62121 62123 62124) Ptychaspis striata (62111) Ptychaspis striata, Ptychaspis granulosa, Ptychaspis tuberosa (62107 62108 62110) Ptychaspis striata, Ptychaspis miniscaensis (62115 62117 62118 62119 62120 62122)
Franconian501.0 - 485.4USA (Idaho) Ptychaspis sp. (251)
Merioneth501.0 - 485.4USA (Vermont) Keithia schucherti, Idiomesus tantillus (6871) Keithia schucherti, Keithiella raymondi (8976)
Steptoean501.0 - 485.4USA (Pennsylvania) Imlerella praecipita (62082)
Trempealeauan501.0 - 485.4Canada (Newfoundland and Labrador) Idiomesus sp. (105858)
Trempealeauan501.0 - 485.4USA (Nevada) Euptychaspis indet., Macronoda indet. (50831) Euptychaspis sp. (204002) Euptychaspis sp., Idiomesus sp. (203998)
Trempealeauan501.0 - 485.4USA (New York) Ptychaspis speciosus (74540 74541)
Trempealeauan501.0 - 485.4Canada (Yukon) Euptychaspis kirki (55313) Idiomesus intermedius, Kathleenella subula (55285 55311) Idiomesus levisensis (55307) Kathleenella hamulata, Plectrella yukonensis (55308) Kathleenella subula (55312) Kathleenella subula, Plectrella yukonensis (55310)
Trempealeauan501.0 - 485.4USA (South Dakota) Idiomesus infimus (9756 9763)
Trempealeauan501.0 - 485.4Canada (Alberta) Idiomesus intermedius (54119)
Niuchehean498.5 - 485.4China (Henan) Changia sp. (129217 129220) Changia sp., Changia chinensis (129219)
Niuchehean498.5 - 485.4China (Hebei) Quadraticephalus sp. (129619)
Niuchehean498.5 - 485.4China (Anhui) Changia sp. (127321)
Sunwaptan498.5 - 485.4Canada (Newfoundland and Labrador) Keithia schucherti (81269) Keithia schucherti, Idiomesus levisensis, Idiomesus ultimus, Idiomesus tantillus, Kathleenella maritima (81271) Keithia schucherti, Idiomesus ultimus, Kathleenella maritima (81272) Keithia schucherti, Keithiella cylindrica, Idiomesus levisensis, Idiomesus ultimus, Idiomesus tantillus, Kathleenella maritima (81270) Keithia subclavata, Keithiella cylindrica (81285 81286) Keithiella cylindrica (81287) Keithiella depressa (81277 81284)
Sunwaptan498.5 - 485.4USA (Nevada) Euptychaspis sp., Idiomesus sp. (8975)
Sunwaptan498.5 - 485.4USA (New Mexico) Euptychaspis kirki (203887)
Sunwaptan498.5 - 485.4USA (New York) Euptychaspis sp. indet. (85187) Euptychaspis typicalis (257 85185 85186)
Sunwaptan498.5 - 485.4Canada (Alberta) Euptychaspis sp., Wilcoxaspis bulbosa (81301) Euptychaspis typicalis, Proricephalus wilcoxensis (81297) Euptychaspis typicalis, Proricephalus wilcoxensis, Sunwaptia carinata (54094) Idiomesus granti (81304) Idiomesus granti, Ptychaspis miniscaensis (54090) Idiomesus intermedius, Macronoda prima, Proricephalus wilcoxensis, Wilcoxaspis bulbosa (54096 81298) Keithiella depressa, Ptychaspis miniscaensis (81306) Keithiella depressa, Ptychaspis sp., Ptychaspis monsensis, Idiomesus granti (54091) Keithiella depressa, Ptychaspis sp., Ptychaspis striata, Ptychaspis bullasa, Ptychaspis miniscaensis (64687) Keithiella intermedia, Idiomesus infimus, Kathleenella frontalis, Proricephalus scapane (54093) Keithiella sp., Idiomesus sp. (81307) Keithiella sp., Kathleenella frontalis (81305) Ptychaspis bullasa, Ptychaspis striata (54088) Ptychaspis miniscaensis (81296) Ptychaspis sp., Idiomesus greggi (54092)
Taoyuanian498.5 - 485.4China (Hebei) Ptychaspis subglobosa (129604 129616)
Taoyuanian - Niuchehean498.5 - 485.4Turkey Alborsella stoecklini (133721)
Furongian497.0 - 485.4Iran Alborsella sp. (22824) Alborsella stoecklini (186034)
Payntonian494.0 - 485.4Australia (Northern Territory) Coreanocephalus sp. (77435 77438) Coreanocephalus sp., Quadraticephalus sp. (77416) Quadraticephalus sp. (77530 77649)
Warendian485.4 - 478.6Australia (Northern Territory) Quadraticephalus sp. (77712)
Tremadoc485.4 - 477.7China (HeNan) Changia sp. (20767)
Tremadocian485.4 - 477.7Canada (Newfoundland and Labrador) Idiomesus intermedius (81290) Idiomesus intermedius, Idiomesus tantillus, Plectrella yukonensis (81289)
Tremadocian485.4 - 477.7Canada (Yukon) Idiomesus intermedius (55315)