Trilobita - Asaphida - Asaphidae
Synonyms: Asaphelloides Kobayashi 1937, Asaphoon Hutchison and Ingham 1967, Hemigyraspis Raymond 1910, Megalaspidella Kobayashi 1937, Plesiomegalaspis Thoral 1946
Parent taxon: Asaphidae according to R. A. Robison and J. Pantoja-Alor 1968
See also Fortey and Owens 1987, Harrington and Leanza 1957, Jell and Adrain 2002 and Sepkoski 2002
Sister taxa: Anataphrus, Asaphinae, Atopasaphus, Aulacoparia, Australopyge, Basilicus, Bellefontia, Birmanites, Bohemopyge, Borogothus, Brachyaspis, Branisaspis, Burminresia, Ectenaspis, Emanuelaspis, Eoasaphus, Eoisotelus, Fuyunia, Gerasaphes, Gogiura, Griphasaphus, Guohongjunia, Homalopyge, Hunnebergia, Isabelinia, Isotelinae, Isyrakopeltis, Kainisiliellina, Kayseraspis, Klabavia, Kobayashia, Lachnostoma, Lisogorites, Lycophron, Merlinia, Metaptychopyge, Metayuepingia, Nahannia, Neopeltis, Nerudaspis, Nileoides, Ningkianites, Niobides, Niobina, Niobinae, Nobiliasaphinae, Nobiliasaphus, Norasaphus, Norinia, Ogmasaphus, Ogygiinae, Ogyginus, Ogygiocarinae, Ogygiocaris, Ogygites, Ogygitoides, Onchometopus, Parabellefontia, Paramegalaspis, Paratamdaspis, Penchiopsis, Plectasaphus, Popovkiaspis, Presbynileus, Priceaspis, Proasaphus, Promegalaspidinae, Proscharyia, Protopresbynileus, Protoptychopyge, Pseudasaphus, Pseudoasaphus, Pseudogriphasaphus, Pseudogygites, Pseudoptyocephalus, Psilocephalina, Ptychopyge, Ptychopyginae, Ptyocephalus, Sanbernardaspis, Stegnopsis, Stenorhachis, Suriaspis, Tchukeraspis, Thysanopyge, Trigonocerca, Trigonocercella, Valdaites, Vogdesia, Xenasaphus, Xenostegium, Zhenganites, Zuninaspis
Subtaxa: Asaphellus artus Asaphellus aspinus Asaphellus catamarcensis Asaphellus clarksoni Asaphellus communis Asaphellus graffi Asaphellus homfrayi Asaphellus isabelae Asaphellus jujuanus Asaphellus nazarenensis Asaphellus riojanus Asaphellus stenorhachis Asaphellus trinodosus Hemigyraspis mcconnelli Megalaspidella (Megalaspidella) Megalaspidella kayseri Megalaspidella orthometopa
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Dobrotivian of Portugal (1 collection)
• Fennian of France (1)
• Dawan of China (1)
• Arenigian of Argentina (4)
• Klabava of the Czech Republic (1)
• Arenig of Argentina (1), Bolivia (3), China (6), France (2), Morocco (2), Sweden (7), the United Kingdom (2)
• Ordovician of Argentina (43), Australia (8), China (1), the Czech Republic (1), France (1), Iran (4), Morocco (7), South Korea (4), Spain (6), Sweden (1), the United Kingdom (3), United States (21: Idaho, Montana, Nevada, Utah)
• Cressagian of the United Kingdom (1)
• Tremadoc of Argentina (83), Bolivia (5), China (42), Iran (6), Mexico (19), Morocco (1), Norway (1), Spain (2), the United Kingdom (1), United States (2: Texas, Vermont)
• Ibexian of United States (2: Nevada)
• Skullrockian of Argentina (1)
• Cambrian of Argentina (5), Australia (1)
Total: 303 collections including 329 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.