Galathea weinfurteri Bachmayer, 1950

Ossó, Àlex, Gagnaison, Cyril & Gain, Olivier, 2022, A re-appraisal of the middle-late Miocene fossil decapod crustaceans of the ‘ Faluns’ (Anjou-Touraine, France), Geodiversitas 44 (6), pp. 207-228 : 210-212

Galathea weinfurteri Bachmayer, 1950

( Fig. 3A, B )

Galathea weinfurteri Bachmayer, 1950: 135-137 , pl. 1, figs 2-4; 1953a: 242-243, pl. 5, figs 3, 4, 6. — Müller 1974b: 276, pl. 1, fig. 4; 1984: 60, pl. 21, figs 4, 5, pl. 22, figs 1-5; 1996: 8. — Radwański et al. 2006: pl. 2, fig. 1. — Gatt & De Angeli 2010: 1326, pl. 2, fig. 4. — Ossó & Stalennuy 2011: text-fig. 3.7. — Collins 2014: 33-34, pl. 1, figs 3, 4. — Hyžný et al. 2014a: 243-247, text-fig. 2, pl. 1, figs 1-7, pl. 2, figs 1-8. — Hyžný 2016: text-fig. 10.F. — Hyžný & Dulai 2021: 126-128, fig. 44.1-14.

MATERIAL EXAMINED AND MEASUREMENTS (in mm). — One fragmentary carapace preserving only the central portion and part of right lateral, ULB-IV-A (9): L = 4; W = 6.5.

LOCALITY AND HORIZON. — ‘Blandinerie’ quarry, Breil (Maine-et-Loire). ‘Savignean facies’, Langhian (middle Miocene).

DESCRIPTION

Anterior portion of carapace transversely vaulted, crossed by transverse striae. Cervical and branchiocardiac grooves well marked. Gastric region with sinuous and continuous main striae, raised, axially curved forward. Mesogastric region with secondary transverse striae between the main striae. Protogastric lobes weakly defined, at lower level that the axis. Epigastric striae sinuous, short. Hepatic region subtriangular. Epibranchial regions triangular, with two short striae, defined by cervical groove anteriorly and branchial groove posteriorly. One hepatic spine and two epibranchial spines preserved.

REMARKS

Despite of the fragmentary condition of the studied sample, lacking specific characters such as the rostrum, it conserves enough characters to assign it to Galathea weinfurteri . The set of continuous transverse striae and the position of the secondary ones, and the shape of the cervical groove and branchiocardiac groove, fit with the holotype figured by Bachmayer (1950: pl. 1, figs 2, 3) and subsequent works (see synonymies list above). Hyžný et al. (2014a: 244, pl. 1, figs 1-5) emended the original diagnosis and also depicted Bachmayer’s images of the holotype. Galathea weinfurteri is by far the most widely distributed squat lobster in the Miocene of the Central Paratethys ( Hyžný et al. 2014a: 254). This report extends the presence of this species in the Atlantic Coast of Europe.

Figures

FIG. 3. — Decapods from the ‘Savignean facies’ (Langhian) of the ‘Blandinerie’ quarry, Breil (Maine-et-Loire): A, B, Galathea weinfurteri Bachmayer, 1950, ULB- IV-A (9): A, dorsal view; B, frontal view; C-F undetermined?porcellanid; G-K, Paguristes gagnaisoni Gagnaison, 2012: G, ULB-IV-A (19), right chela; H, ULB-IV-A (19.2), right chela outer margin; I, occlusal margin; J, ULB-IV-A (17), right chela inner margin; K, right chela outer margin; L-Q, undetermined paguroid: L, ULB- IV-A (49), right dactylus outer margin; M, occlusal margin; N, inner margin; O, ULB-IV-A (44), left index, inner margin; P, occlusal margin; Q, outer margin. Scale bars: A-J, 5 mm; L-Q, 10 mm. Photographs by À. Ossó.