taxonID	type	description	language	source
03FE8782FFF7FFD7FC7FFB60FC89F8A2.taxon	description	Figures 1 - 5 Lectotype. GPIT 1491 / 4; a complete skeleton with partial preserved soft-tissue outline in left lateral view. GPIT 1491 / 4; a complete skeleton with partial preserved soft-tissue outline in left lateral view (Figure 1 A). Geographical distribution. Baden-Württemberg, Germany; Ilminster (UK) (Maisch, 2008); Solothurn, Switzerland (see discussion for details). Stratigraphic distribution. Late Pliensbachian, margaritatus Zone; lower Toarcian, tenuicostatum Zone, semicelatum Subzone – serpentinum Zone, exaratum Subzone (SWGB: beds εII 3 - εII 4 / 5). Note that according to the specimen label, SMNS 51552 originates from bed εII 3, rather than εII 2 as stated elsewhere (Maisch, 2008). Peak abundance occurs in εII 4, where material referred to Hauffiopteryx represents a substantial percentage of all small ichthyosaurs recovered (Maxwell and Vincent, 2016). MAXWELL & CORTÉS: REVISION OF HAUFFIOPTERYX	en	Maxwell, Erin E., Cortés, Dirley (2020): A revision of the Early Jurassic ichthyosaur Hauffiopteryx (Reptilia: Ichthyosauria), and description of a new species from southwestern Germany. Palaeontologia Electronica (a 31) 23 (2): 1-43, DOI: 10.26879/937, URL: http://dx.doi.org/10.26879/937
03FE8782FFF7FFD7FC7FFB60FC89F8A2.taxon	diagnosis	Emended diagnosis. Hauffiopteryx typicus can be distinguished from other species of Hauffiopteryx by a triradiate lacrimal forming the posterior border of the external narial opening, deepest lateral exposure of the maxilla located ventral to the posterior half of the external narial opening, a large, rounded orbit, and nasals with pronounced dorsal inflection at the anterior orbital margin.	en	Maxwell, Erin E., Cortés, Dirley (2020): A revision of the Early Jurassic ichthyosaur Hauffiopteryx (Reptilia: Ichthyosauria), and description of a new species from southwestern Germany. Palaeontologia Electronica (a 31) 23 (2): 1-43, DOI: 10.26879/937, URL: http://dx.doi.org/10.26879/937
03FE8782FFF7FFD7FC7FFB60FC89F8A2.taxon	materials_examined	Referred specimens. Of the material examined, GPIT 1491 / 4, GPIT / RE / 12905, MHH 9, SMNS 51552, and SMNS 80226 can be confidently referred to H. typicus (Figures 1 - 3). The English material referred to Hauffiopteryx is also consistent with H. typicus, as is NMO 26575 from the Pliensbachian of Switzerland (see discussion for details).	en	Maxwell, Erin E., Cortés, Dirley (2020): A revision of the Early Jurassic ichthyosaur Hauffiopteryx (Reptilia: Ichthyosauria), and description of a new species from southwestern Germany. Palaeontologia Electronica (a 31) 23 (2): 1-43, DOI: 10.26879/937, URL: http://dx.doi.org/10.26879/937
03FE8782FFFFFFDFFC71FA80FC01F997.taxon	description	v. 2005 Eurhinosaurus longirostris (Mantell, 1851): Jäger, p. 29, fig. 23.	en	Maxwell, Erin E., Cortés, Dirley (2020): A revision of the Early Jurassic ichthyosaur Hauffiopteryx (Reptilia: Ichthyosauria), and description of a new species from southwestern Germany. Palaeontologia Electronica (a 31) 23 (2): 1-43, DOI: 10.26879/937, URL: http://dx.doi.org/10.26879/937
03FE8782FFFFFFDFFC71FA80FC01F997.taxon	materials_examined	Holotype. Holotype and only referred specimen FWD- 129; a skull and partial postcranium preserved in a calcareous concretion (Figures 7 - 8; see Table 1 for selected measurements). The bones on the right side of the skull remain in articulation; those on the left side of the skull have suffered some taphonomic displacement.	en	Maxwell, Erin E., Cortés, Dirley (2020): A revision of the Early Jurassic ichthyosaur Hauffiopteryx (Reptilia: Ichthyosauria), and description of a new species from southwestern Germany. Palaeontologia Electronica (a 31) 23 (2): 1-43, DOI: 10.26879/937, URL: http://dx.doi.org/10.26879/937
03FE8782FFFFFFDFFC71FA80FC01F997.taxon	etymology	Etymology. The specific epithet is derived from the Latin altera, which means different from / other and refers to the anatomical divergence from the type species, H. typicus. Geographical distribution. Dotternhausen-Dormettingen, Baden-Württemberg, Germany. Stratigraphic distribution. Posidonienschiefer Formation, lower Toarcian, serpentinum Zone, exaratum Subzone (SWGB: bed εII 4 / 5).	en	Maxwell, Erin E., Cortés, Dirley (2020): A revision of the Early Jurassic ichthyosaur Hauffiopteryx (Reptilia: Ichthyosauria), and description of a new species from southwestern Germany. Palaeontologia Electronica (a 31) 23 (2): 1-43, DOI: 10.26879/937, URL: http://dx.doi.org/10.26879/937
03FE8782FFFFFFDFFC71FA80FC01F997.taxon	diagnosis	Diagnosis. Hauffiopteryx altera differs from H typicus in: deepest lateral exposure of the maxilla located posterior rather than ventral to the external narial opening; broad, triangular lacrimal excluded from the external narial opening by the descending process of the prefrontal; nasals extending further posteriorly on dorsal skull roof; dorsal exposure of prefrontal substantially greater than that of postfrontal.	en	Maxwell, Erin E., Cortés, Dirley (2020): A revision of the Early Jurassic ichthyosaur Hauffiopteryx (Reptilia: Ichthyosauria), and description of a new species from southwestern Germany. Palaeontologia Electronica (a 31) 23 (2): 1-43, DOI: 10.26879/937, URL: http://dx.doi.org/10.26879/937
