Lonchodomas retrolatus Ross and Barnes 1967 (trilobite)

Trilobita - Trinucleida - Raphiophoridae

Full reference: R. J., J.r. Ross and H. B. Barnes. 1967. Some Middle Ordovician Brachiopods and Trilobites from the Basin Ranges, Western United States. United States Geological Survey Professional Paper 523-D:D1-D4

Belongs to Lonchodomas according to R. J., Jr. Ross and H. B. Barnes 1967

Sister taxa: Lonchodomas (Foliopyge), Lonchodomas carinatus, Lonchodomas chaziensis, Lonchodomas clavulus, Lonchodomas coagmentatum, Lonchodomas depressus, Lonchodomas halli, Lonchodomas normalis, Lonchodomas paenepennatus, Lonchodomas pennatus, Lonchodomas politus, Lonchodomas portlocki, Lonchodomas punctatus, Lonchodomas rostratus, Lonchodomas sublaevis, Lonchodomas suriensis, Lonchodomas tenuis, Lonchodomas tumidus, Lonchodomas volborthi, Lonchodomas yohi

Type specimen: USNM 145817, a cephalon/head (cranidium). Its type locality is D 680 CO, which is in a Whiterockian shallow subtidal limestone in the Eureka Formation of Nevada.

Ecology: fast-moving low-level epifaunal suspension feeder

Distribution: found only at D 680 CO

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