*4.2. Sedimentary Facies Analysis*

Section A (Agios Georgios Section): The principal lithofacies of this section is boundstone, composed of red algal communities, and less frequent benthic foraminifera within a micritic clotted matrix (Figure 6a,b). Some lime horizons are dolomitized.

Section B (Perivleptos section): The lower part of this section is characterized by the lithofacies recrystallized grainstone of peloids with signals of dolomitization and fracturing (Figure 6c,d), while the upper part consists of mudstone-wackstone with radiolarians and/or planktonic foraminifera (Figure 6e).

Section C (Vigla Section): Section E consists of radiolarian biomicrite wackstone (Figure 6f,g).

Section D (Koloniati section): Within this section biomicrite mudstone-wackstone with planktonic foraminifera (Figure 6h), allochtonous bioclastic packstone with abundant benthic foraminifera (Figure 6i), and ooid lithofacies (Figure 6j,k) were observed.

Section E (Asprageli-2 Section): In Section D, the following two lithofacies have been observed: (i) bioclastic packstone, (Figure 6l), and (ii) biomicrite wakstone-packstone-floatstone with planktonic foraminifera, (Figure 6m).

Section F (Asprageli-1 Section): In Section C a packstone with planktonic foraminifera and some scattered mollusc and benthic foraminifera (Figure 6n,o) has been identified.

Generally, high energy environments such as platform, fore-shoal, and intertidal channel display grain supported textures. On the contrary, in low energy environments such as deep shelf and open marine, mud supported textures developed. In between, medium energy settings include platform slope environments, deposits of which are characterized by significant debris of rudists, algae, porcelaneous benthic foraminifera, and rarely variable shell fragments (bivalves, bryozoans). Grainy or micritic texture also strongly affected porosity, fluid flow, and diagenetic processes.

## *4.3. Biostratigraphic Analysis*

Section A (Agios Georgios Section): Calcareous green algae of *Paleodasycladus* sp. and *Paleodasycladus mediterraneus* and *Thaumatoporella parvovesiculifera*, *Thaumatoporella* sp. build boundstones. Benthic foraminifers are represented by *Textularia* sp., Miliolidae and Ataxophragmiidae.

**Figure 6.** Characteristic Early Jurassic to Paleogene microfacies types of Ionian zone (Epirus region, NW Greece). (**a**,**b**) Dolomized boundstone with calcareous algae and benthic foraminifera within a micritic clotted matrix (samples AG1, AG15); (**c**,**d**) recrystallized grainstone of peloids with signals of dolomitization and fracturing (samples P3, P9); (**e**) mudstone-wackestone with radiolarian and planktonic foraminifera (sample P19); (**f**,**g**) wackestone with radiolarians (samples B1, B10); (**h**) Pelagic wackestone with radiolarians and planktonic foraminifera (sample K2); (**i**) Allochthonous bioclastic packstone with medium- and large-sized bioclasts benthics and rudist fragments (sample K5); (**j**,**k**) grainstone of ooids with sparitic cement (samples K4, K9); (**l**) bioclastic packstone of orientated and transported larger benthic foraminifera and rudists (sample A(2)7); (**m**) Pelagic wackestone-packstone of radiolarian and planktonic foraminifera, among which carenate forms are presented (sample A(2)9); (**n**,**o**) packstone with in situ planktonic foraminifera and scattered, transported benthics and molluscks (samples A7, A13).

Section B (Perivleptos section): Benthic foraminifera (e.g., *Glomospira* sp., *Glomospirella* sp., *Globochaete* sp., *Textularia* sp., *Valvulina* sp., Miliolidae, *Clypeina jurassica*, *Protopeneroplis striata*) and

fragments of hermatypic corals, calcareous green algae, gastropods, were identified in the lower part of the section and suggest a Hettangian-Sinemurian age. Radiolarians and planktonic foraminifera *Ticinella roberti*, *Biticinella breggiensis*, *Hedbergella delrioensis*, *Hedbergella planispira*, place the upper part of this section to the Middle-Late Albian.

Section C (Vigla Section): Assemblages of small-to-medium-sized morphotypes of *Calpionella alpina* followed by the acme of *Calpionella elliptica* at the basal part of the section suggest an Early Berriasian age, while progressively through the top of the section radiolarians and other planktonics (*Favusella hauterivica*, *Hedbergella sigali*, *Hedbergella dendroensis*) have been further identified. In the upper half of the section the Globigerinelloides "acme" and "eclipse" intervals, characterized by the abundant presence and the lack of representatives of this genus, respectively, show the evolution through the Barremian up to the Albian in the topmost meters of the Vigla Limestones.

Section D (Koloniati section): The lower part of the section assigned to Vigla Formation was characterized by the presence of the planktonic foraminiferal assemblage *Rotalipora appenninica*, *Rotalipora cushmani*, and *Praeglobotruncana gibba* suggesting the early Late Cretaceous and particularly the Cenomanian-Turonian boundary interval. The upper part has a Coniacian-Maastrichtian age and contains the foraminifera *Globotruncana* cf. *arca*, *Globotruncana* cf. *linnei*, *Orbitoides* sp., *Quinqueloculina* sp., *Spiroloculina* sp., *Pseudolituonella* sp., *Cuneolina* sp., Textulariidae, and Miliolidae.

Section E (Asprageli-2 Section): This section cover the Santonian-Maastrichtian time span based on the variable fauna containing mainly Globotruncaniids (e.g., *Globotruncanita stuarti stuatiformis*, *Rugoglobigerina rugosa*, *Globotruncana* cf. *bulloides*, *Globotruncana arca*, *Abathomphalus mayaroensis*, *Contusotruncana* sp.), but also benthic foraminifera (e.g., Miliolidae, *Siderolites* sp., *Cuneolina* sp., *Orbitoides* cf. *media*, *Orbitoides apiculata*), as well as rudist and molusc fragments.

Section F (Asprageli-1 Section): The genera Subbotina, Acarinina, and Morozovella are the dominant groups of Paleocene-Early Eocene assemblages. More explicitly, the lower part of the section contains carbonates enriched on radiolarians and planktonic foraminifera (*Parasubbotina pseudobulloides*, *Acarinina* sp., *Subbotina* sp., *Igorina pussila*, *Chiloguembelina* sp.), which deposited during the Early Paleocene (Selandian). Progressively through the top of the section, the increase of highly and full body ornamented Morozovellid species (e.g., *Morozovella aequa* and *Morozovella subbotinae*, *Morozovella velascoensis*) and quadrate Acarininids (e.g., *Acarinina wilcoxensis* and *Acarinina pseudotopilensis*) are indicative to the end of the Paleocene and the start of the Eocene (Ypresian).

Overall, the age determination supports the pre-existing results mentioned in the geological maps (Ioannina, Doliana, Pappadatai, and Tsepelovo sheets; [87–90]) regarding the Ionian zone rock exposures. Particularly, they confirm the Early Jurassic (Hettangian-Sinemurian) for the Pantokrator Limestones, the Early Cretaceous-early Late Cretaceous (Berriasian-Turonian) for the Vigla Limestones, the early Late Cretaceous (Albian) for the Vigla Shales, the Late Cretaceous (Coniasian-Maastrichtian) for the Senonian Limestones, and the Paleocene/Early Eocene age for the microbreccious limestones respectively.
