Cisuralius :

Лебахакант встречался с триодусом?А с другими,были ли определённые виды эндемичными для определённых(изолированных?) водоёмов?Есть данные о времени и месте жительства представителей семейства?

http://www.app.pan.pl/archive/published … 090019.pdf -Palaeobiogeography of hybodonts, ctenacanths, and xenacanthids from the Lower Rotliegend, Stephanian C (Late Carboniferous and Early Permian)

Сноска к палеобиогеографической карте из работы:

Fig. 11. Palaeobiogeography of hybodonts, ctenacanths, and xenacanthids from the Lower Rotliegend, Stephanian C (Late Carboniferous and Early Perm−
ian) based on current knowledge: B, Bohemiacanthus; L, Lissodus; O, Orthacanthus; P, Plicatodus; S, Sphenacanthus; T, Triodus; X, Xenacanthus; below
the horizontal line – occurrences during Stephanian C (late Gzhelian–early Asselian), and above the horizontal line—occurrences during Lower Rotliegend
(middle Asselian–early Sakmarian) (after Fischer 2005, new arranged after Schneider and Zajíc 1994). Palaeogeographic position of important Permo−Car−
boniferous basins (after Fischer 2005 and Roscher and Schneider 2006), the Late Permian Northern and Southern Permian Basin are omitted: AU, Autun
Basin; BLG, Blanice Graben; BCG, Boskovice Graben; BU, Bourbon l’Archambault Basin; CA, Carpathian Basin; CR, Carnic Alps; DB, Donetsk Basin;
DÖ, Döhlen Basin; EB, Erzgebirge Basin; EBL, Elbe Lineament; FL, Flechting Block; FRL, Franconian Lineament; FR, Franconian Basin; GBFZ, Golf of
Biscay Fracture Zone; GMFZ, Gibraltar Minas Fracture Zone; GP, Guardia Pisano Basin; GSH, Grand Sillon Houllier Fracture Zone; HRF, Hunsrück Frac−
ture; IF, Ilfeld Basin; IS, Intra Sudetic Basin; KP, Krkonoše Piedmont Basin; LC, Lu Caparoni Basin; LO, Lodève Basin; MO, Montceau les Mines Basin;
NGVC, North German Volcanite Complex; NS, North Sudetic Basin; PBF, Pays de Bray Fracture; PD, Perdasdefogu Basin; PU, Puertollano Basin; RGL,
Rhein Graben Lineament; RÜ, Rügen; SB, Saale Basin; SNB, Saar−Nahe Basin; ST, St. Etienne Basin; SV, Salvan−Dorénaz Basin; TF, Thuringian Forest
Basin; TTFZ, Tornquist−Teysseyre Fracture Zone; WCB, Western and Central Bohemian Basins; WEI, Weissig Basin; ZÖ, Zöbingen.

А чем питались некрупные ксенаканты, до метра в длину? Википедия пишет, что мелкими ракообразными...