LB - Museum Grade Mass Mortality Plate with 19 Symphysurus Ordovician Trilobites Palaeonotopterus Search for other: LL chondrites

Search for other: LL chondrites

no restorations

Aragonite will change to calcite over timescales of days or less at temperatures exceeding 300 °C and vaterite is even less stable

where the chondrules have undergone a high alteration

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LB - Museum Grade Mass Mortality Plate with 19 Symphysurus Ordovician Trilobites Palaeonotopterus Search for other: LL chondritesLB Museum Grade Mass Mortality Plate with 19 Symphysurus Ordovician TrilobitesSPECIES Symphysurus ebbestadi n. sp Trilobite. 19 individualsAGE Lower Ordovician, Upper Tremadocian stage (~480 Million Years)LOCATION North of Zagora, South MoroccoFORMATION Lower Fezouata Formation (Outer Feijas Group)SIZE (The plate) 47 cm 18. 5 inWEIGHT >4000 g REF. LBObservations: Impressive and very rare association of this lower Ordovician species. It is very