Figure 4 in Sheltered preservation in Ordovician trilobites

Figure 4. Sheltered trilobites from the ŠAErka and DobrotivAE formations. (A) Isolated cephalon of Eoharpes preserved upside-down under a comparatively large pygidium of Ectillaenus katzeri katzeri, MBHR 382. (B) Internal mould of Eoharpes primus preserved under a large, effaced pygidial or cephalic shield of an indeterminable asaphid or illaenid trilobite, MBHR 375. (C) Internal and external moulds of holaspid exoskeletons of Placoparia (P.) cambriensis preserved associated with the exoskeletal parts of Asaphellus desideratus, VV 290. (D) Internal mould of articulated exoskeleton of Eoharpes primus preserved under a large shield of an indeterminable asaphid or illaenid trilobite, MBHR 12251. (E) Disarticulated exoskeleton of Eoharpes primus under a large shield of an indeterminable trilobite, MBHR 335. (F) External moulds of four juvenile specimens of Placoparia sp. preserved inside an internal mould of a cranidium of an isolated cephalon of Degamella princeps, VV 102. (G) Complete articulated exoskeleton of Placoparia (P.) cambriensis preserved under the anterior part of an isolated pygidium of Asaphelus desideratus, MCZ 5136 and 5137. Ar – Arachnostega gastrochaenae. Localities: (B) Díly near Rokycany, (C)–(E) Osek, (A), (F), and (G) unknown. All specimens coated with ammonium chloride.