Journal
PALZ
Volume 91, Issue 1, Pages 5-70Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s12542-017-0339-7
Keywords
Cambrian; Trilobita; Biostratigraphy; West Gondwana; Germany; Morocco
Categories
Funding
- Deutsche Forschungsgemeinschaft (DFG)
- [GE 549/21-1]
- [GE 549/22-1]
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Earliest middle Cambrian rocks in the Franconian Forest, formerly known as the 'Galgenberg Formation', include a moderately diverse fauna with a characteristic West Gondwanan, Atlas-type trilobite assemblage with often surprisingly well-preserved specimens. The hitherto inadequately characterised and poorly described assemblage includes Kingaspidoides franken-waldensis, K. sp. aff. usitata, K. alberti sp. nov., K. meieri sp. nov., K.? sp. A, Ornamentaspis cf. crassilimbata, Latikingaspis sp. aff. alatus, Enixus sp. aff. juvenis, Acadoparadoxides sp. A, Parasolenopleura wurmi sp. nov., Parasolenopleura parabolica sp. nov. and Acanthomicmacca franconica Geyer, 2016. In addition to precise documentation of the species' morphology and ontogenetic development, this study exemplifies allometric developments during the ontogeny of ellipsocephaloid and early solenopleurid trilobites, particularly Kingaspidoides and Parasolenopleura, and effects of deformation and distortion caused by diagenesis and tectonics. It further discusses the aspects of the trilobites' ecology and taphonomy, and it characterises generic differences within the Kingaspis clade, particularly of Kingaspidoides, Latikingaspis and Ornamentaspis.
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