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Showing results for tags 'phacopid'.
Found 7 results
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The Devonian period is known as "The Age of Fish", but could also be known as "The Age of Brachiopods." In the Early / Lower Devonian, brachiopods reached the height of their diversity towards its end in the Emsian. We see the ancestral groups occurring, lingulids, craniids, orthids, protorthids, pentamerids, rhynchonellids and strophomenids, as well as the later successful groups we have seen before such as atrypids, athyrids and orthotetids, plus the rise of spiriferids, spiriferinids and productids and the beginning of the terebratulids. By the end of the Devonian , several of these g
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- pentremitidea archiaci
- cordillera cantabrica
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Unknown species of Phacops trilobite from Morocco. Has beautiful eyes and nose! All small details of the eyes are preserved nicely. Huge crack is crossing from the left pygidium to the right middle of thorax segment, which is very common in Moroccan trilobite.
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From the album: Cranky’s album of fossils
Unknown phacopid trilobite of the Ordovician and of Morocco -
Just curios as to what species this is I looked at phacops but non seem to have such defined bumps for a better word also the eyes don't match up at least not to the ones I have looked at. Again questioning this id because what is exposed so far is rather small 0.86" by 0.80" and the size of the matrix block is 2.51" by 2.34" Also I am prepping this currently so not fully exposed yet don't know if that will hinder the possibility of confirming an id. Thanks Matt
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Quite a large specimen even for this quite big species. The length given is of the animal along the centre of its back, not the diameter.
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Entry includes detail of eye lenses. One of the defining characteristics of this particular species, apart from the impressive eyes, is the convex nature of the anterior portion of the glabella.
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Doing a little diagnostic work to better determine this phacopid species. In recent trips to one of my collecting sites, which typically is composed of imported Bois Blanc Fm fill (and just recently evidence of some Amherstberg Fm mixed in), I have had to reassess some of the specimens I've been pulling from there - and that includes several examples of what I wrote off as simply Eldredgeops rana. Consulting both Stumm (1954) and Ludvigsen (1979), E. rana is not reported in either of those formations. I've also paid particular attention to the comparative table in Whitely, Kloc and Brett's Tri
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- diagnostic details
- devonian
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