Artiopoda - Agnostida - Agnostidae
Alternative combination: Geragnostus curvata
Full reference: R. A. Robison and J. Pantoja-Alor. 1968. Tremadocian trilobites from the Nochixtlan Region, Oaxaca, Mexico. Journal of Paleontology 42(3):767-800
Belongs to Micragnostus according to G. K. Ergaliev and F. G. Ergaliev 2008
See also Robison and Pantoja-Alor 1968
Sister taxa: Geragnostus (Micragnostus) acrolebes, Geragnostus (Micragnostus) bilobus, Geragnostus (Micragnostus) chengcunensis, Micragnostus brevispinus, Micragnostus calviformis, Micragnostus calvus, Micragnostus chiushuensis, Micragnostus elongatus, Micragnostus insolitus, Micragnostus intermedius, Micragnostus mutabilis, Micragnostus orientalis, Micragnostus quadratiformis, Micragnostus serus, Micragnostus strictus, Micragnostus vilonii
Type specimen: USNM 158875, a cephalon/head
Ecology: slow-moving epifaunal detritivore
Distribution:
• Tremadoc of Mexico (4 collections)
• Cambrian of Kazakhstan (11)
Total: 15 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.